Sandy completed pH and fecal coliform tests on water samples from the pond in her backyard. She reported the results in the following charts.
Two graphs showing water-quality indicators for Sandy's pond over one year. The graph labeled 'pH' shows that the pond's pH flu
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What can you conclude about the water quality of Sandy's pond over the past year? Explain. (5 points)
Answers
The water quality of the pond is worst in month of June and July. And the pH of the pond is mostly acidic, but went from alkaline in month of April. A.
Explanation:The pond quality assessment requires the measure of the pH of the water of pond and the number of colonies of bacteria and presence of other organisms in pond and their assessment. The report given here shows the variation of pond water pH for about 10 months and the colony count per liter for 10 months.
Here in the graphs given, we can see that the pond water quality got worst in month of June and July, because in those months, the water got the most number of faecal coliform bacteria. This is mainly because the months of June and July are the monsoon season, and the water sweeping from different areas of soil got the fecal coliform bacteria into the pond which helped in their growth and increased numbers.
In the month of March, the pH got to the highest of 7.5 which is because the March season don't generally get too much rainfall which is why the water concentration decreases and the growth of different other bacteria and plants make the water alkaline.
Related Questions
What did Redi find in his experiment?
A.Only the broth with the flask open to the air contained living organisms.
B.Flies were not found in the sealed jars of rotting meat.
C.Both broths contained living organisms.
D.Flies were found in all of the sealed and unsealed jars of rotting meat.
Answers
Answer:
The correct option is B) Flies were not found in the sealed jars of rotting meat.
Explanation:
Redi discarded the phenomenon or hypothesis for spontaneous generation through his experiments. The hypothesis of spontaneous generation supported that live could originate from non-living things.
Through his experiments, he proved that only flies could give rise to other flies. He did experiments by keeping meat pieces in a sealed and in an open jar. The absences of the flies in the sealed jar proved that meat could not give rise to flies and only flies gave rise to other flies.
Final answer:
The correct option is B. Flies were not found in the sealed jars of rotting meat. Redi's experiment demonstrated that maggots only developed in rotting meat when flies had access to it, not in sealed jars, hence disproving spontaneous generation.
Explanation:
Francesco Redi conducted an experiment that is considered one of the first to challenge the theory of spontaneous generation—the belief that living organisms could arise from nonliving matter. In his experiment, he used jars with rotting meat to demonstrate his hypothesis that maggots only arose when flies had contact with the meat. Redi's findings showed that flies were not found in the sealed jars of rotting meat, supporting the idea that maggots were the offspring of flies and not a product of spontaneous generation. As a result, option B is the correct answer.
what happened on march 22 2010
Answers
Answer: James W. Black, Scottish Nobel Prize-winning doctor and medical research scientist had died that day
In the family tree below, people with the recessive trait of attached earlobes
are shaded gray.
What must be true about the person labeled "A"?
O
A. It is a female with two dominant alleles.
O
B. It is a female with at least one dominant allele.
O
C. It is a male with at least one dominant allele.
O
D. It is a male with two dominant alleles.
Answers
Answer:
B. It is a female with at least one dominant allele.
Explanation:
In pedigrees, a circle corresponds to a female, and a square to a male. The person labelled A is a circle, so must be a female.
Affected individuals are shaded grey. In this case, we are looking at the trait of attached earlobes, which is recessive. To have the trait you need two recessive alleles. This female is not affected, meaning she does not have two recessive alleles, one of her alleles must be the dominant allele.
That means, either she is heterozygous (has one dominant allele and one recessive allele) or homozygous dominant (two copies of the recessive allele)
Scientists classify organisms into categories according to their shared characteristics. The most current system of classification sorts organisms into kingdoms first. Then, each kingdom is further sorted into different phyla, classes, orders, families, genera, and species. What is the name of this system of classification?
Answers
The taxonomic classification system, also known as the Linnaean system, was introduced by Carl Linnaeus and sorts organisms into hierarchical categories including domain, kingdom, phylum, class, order, family, genus, and species.
Explanation:The name of the system of classification that scientists use to classify organisms into categories according to their shared characteristics is called the Linnaean system. This system was developed by Carl Linnaeus in the 18th century and it is still widely used today. The Linnaean system organizes organisms into a hierarchical taxonomy, with the broadest category being domain, followed by kingdom, phylum, class, order, family, genus, and finally species.
The name of the current system of classification that scientists use is known as the taxonomic classification system or the Linnaean system. This system, invented by Carl Linnaeus, categorizes organisms using a hierarchical structure, beginning with broader groups that become more specific. The major categories in this hierarchical order include domain, kingdom, phylum, class, order, family, genus, and species. In binomial nomenclature, an organism's scientific name is made up of its genus and species name. This system reflects the relatedness of organisms, where those sharing a more recent common ancestor are grouped more closely together.
what is a societal problem that science can best help solve
Answers
Answer:
Social problem-solving is generally considered to apply to four different types of problems: Impersonal problems, for example, shortage of money; Personal problems, for example, emotional or health problems; Interpersonal problems, such as disagreements with other people.
Explanation:
Science can aid in addressing numerous societal issues such as climate change, health concerns, and technological advancements. Scientific research sheds light on factual information which guides our approach to these challenges. Through understanding the workings of our world, we can implement more effective solutions on a societal level.
Explanation:There are numerous societal problems that science can significantly aid in solving. One prominent example is the challenge of climate change. Science guides us in understanding the complexities of climate change and implementing solutions, such as decreased use of fossil fuels, enhancements in food production, and modifications in travel patterns to mitigate negative environmental impacts.
Scientific research is also critical in shaping our approach to healthcare, informing decisions related to disease prevention, mental health, and overall wellbeing. Without the evidence provided through scientific research, we risk relying on misinformation or unfounded beliefs.
Furthermore, science plays a pivotal role in navigating technological advancements. It allows us to comprehend the workings of technologies we use daily, like computers and phones, thus enhancing our ability to implement technology effectively and judiciously at a societal level.
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Scientific concepts and principles
Answers
Facts, concepts, principles, laws, and theories are components of science information. Inferences are made regarding individuals' knowledge about and understanding of these components based on those individuals' responses to assessment items or teachers' questions.
Scientific concepts and principles span various disciplines, including the natural sciences, ethics, and sustainability, with the aim of understanding and describing the universe. The methodical application of scientific methods leads to the formulation of theories and laws, documented through peer-reviewed research essential for ongoing scientific dialogue and progress.
Explanation:Scientific concepts and principles are central to understanding the universe and range from the physical world to ethical and environmental considerations. Scientific methods involve inductive and deductive reasoning, with the aim to develop scientific theories and laws. These principles are not just confined to natural sciences like physics, chemistry, and biology, but also extend across various areas, including sustainability, environmental concerns, and ethical practices.
For instance, physics employs mathematical formulas to articulate laws of nature, such as F = ma, which describes the relationship between force, mass, and acceleration. Biology explores the complex interrelations of living organisms, as they relate to concepts like ecosystems, evolutionary biology, and homeostasis. Meanwhile, sustainability emphasizes the imperative of maintaining a balance within the environment to ensure the wellbeing of current and future generations.
Ultimately, scientific inquiry is dynamic and ever-evolving, with the core mission of expanding knowledge and solving practical problems through basic and applied research. This iterative process is integral to producing reliable and peer-reviewed scientific papers that communicate findings to the broader community.
1. Why do you think seagrass beds might filter excess plant
nutrients and sediment well?
Answers
Answer: Without seagrass, most areas where they currently live would be a seascape of shifting sand and mud. Mangroves and seagrass also filter pollutants, absorb excess nutrients from runoff, and trap sediments, helping to increase the clarity and quality of waters.
Explanation: there you go have a good day.
The reason why seagrass beds might filter excess plants should be explained below.
Why might seagrass beds filter excess plant nutrients and sediment well?As without seagrass many areas where they presently live should be seascape for transforming the sand and mud. The mangroves and seagrass should also filter the pollutants, it absorbed the extra nutrients from running off also the sediments should be trapped so that the water quality should be increased.
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Which organelle provides protection and support to a cell?
Cell wall
Cytoplasm
Nucleus
Ribosome
Answers
Answer: cell wall
Explanation: a cell wall is a complex protective structure which gives shape and protection to a plant cell.
Among the functions of a cell wall is maintaining the structural integrity of a cell and providing strength. Because a cell wall has semi-permeable outer layer, it filters molecules that pass in and out of the cell hence, acting as a defense structure against a variety of external factors. It has pores and receptors that regulate various functions of the cell.
The organelle that provides protection and support to a cell is A. Cell Wall.
What is a cell wall ?The cell wall is a rigid structure that surrounds the cell membrane. It is made up of cellulose, a long, chain-like molecule that is found in plants. The cell wall provides support and protection for the cell. It helps to maintain the cell's shape and to protect it from damage.
The cytoplasm is the jelly-like substance that fills the cell. It is made up of water, proteins, carbohydrates, lipids, and other molecules. The cytoplasm contains all of the cell's organelles, except for the nucleus. The cytoplasm is where most of the cell's chemical reactions take place.
Option A is correct.
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Five different students in Mr. Garcia's class have done an experiment once, and each one got similar results. What should the students do to increase the validity of their results?
A. Each student should do a few more experimental trials.
B. The students should ask Mr. Garcia for a different experiment to do.
C. The students should compare their procedures and try to revise them.
D. Each student should modify the experiment and see what results they get.
Answers
To increase the validity of the results, all the students of Mr. Gracia's class must perform a few more experimental trials.
Answer: Option A
Explanation:
While dealing with the scientific analysis, one must always commit number of experiments to gain the most accurate and valid result. By doing number of trials, we get different approximate values that can be used to estimate the average result.
This average will be the nearest value of the exact answer if we add more and more number of experiments or trials. Since, the results are similar for each student in the class, they all should attempt more trials or experiments to get the most accurate result.
To enhance the validity of their results, the students should conduct additional experimental trials, as repetition increases reliability and helps identify possible experimental errors. The correct answer is option (A).
To increase the validity of their experimental results, it is essential for the students in Mr. Garcia's class to perform more experimental trials. This process, known as repetition, helps to ensure that the results are repeatable and reliable. Adding more trials would strengthen the evidence that the initial outcomes were not due to random chance or experimental error.
Discussing potential opportunities for experimental error and the controls that could be added to reduce such error would also help in refining the experiment and increasing the validity of the results. Each student conducting more trials would provide a larger data set, making it easier to identify any anomalies or consistent patterns within the results.
Thus, the correct answer to the student's question is option A) Each student should do a few more experimental trials.
i need a list of biotic factor listed from A to Z
Answers
Answer:
~Producers
~Consumers
~Predators
Explanation:
Biotic factors(biotic components): It can simply be defined or described as any living components that affect another organism or shape the ecosystem. These includes both animals that consume other organism within there ecosystem, and the organism that is being consumed. These biotic factors are categorized in three place as enlisted above.
The:
Producers (Autotrophs).
Consumers (Deterotroph)
Decomposers( Detritivores).
In nitrogen fixation, the plant obtains the nitrogen it needs to synthesize proteins, while the bacteria obtain carbon from the plant and a secure environment to inhabit within the plant roots. Which statement best explains the symbiotic relationship between the plants and the bacteria? A) Both the plants and the bacteria benefit from the process of nitrogen fixation, showing commensalism. B) The plants benefit and the bacteria are unaffected by the process of nitrogen fixation, showing commensalism. C) Both the plants and the bacteria benefit from the process of nitrogen fixation, making it a mutualistic relationship. D) The bacteria benefit and the plants are unaffected by the process of nitrogen fixation making it a mutualistic relationship.
Answers
Explanation:
Symbiotic relationship is a relationship between two organisms in which both organism benefit each other or both are equally depended on each other.In nitrogen fixation, both the plants and the bacteria benefit from the process of nitrogen fixation,making it a mutualistic relationship or symbiotic relationship between the plants and the bacteria.in nitrogen fixation plants provide carbon and shelter to the bacteria and in return bacteria provide nitrogen to the plants which helps plants to synthesize proteins and this association shows the symbiotic or mutual association or relationship.Which of the following processes have contributed to the evolution of the Earth over time?
I. the motion of crustal plates
II. the rock cycle
III. radioactive dating
IV. erosion
V. deposition
A.
I and IV only
B.
II, III, and IV only
C.
I and II only
D.
I, II, IV, and V only
Answers
Answer:
D. I, II, IV, and V only
Which concept is not a part of the theory of evolution
Answers
Answer:
I believe the options are:
1) Present day species developed from earlier species .
2) Some species die out when environmental changes occur .
3) Complex organism develop from simple organisms over time .
4) Change occurs according to the needs of an individual.
The answer is 4) Change occurs according to the needs of an individual.
Explanation:
Theory of Evolution:
By definition, evolution is the process of change in an individual's/organism's characteristics over time. Evolution occurs through mutations in the genetic information or DNA of an individual. The theory of evolution states that all organisms change over time and are descendants of a single common ancestor. Species adapt to the changing environment by introducing variations in their DNA over millions of years. Harsh environment conditions eliminate organisms that cannot adapt to the changing environment and only the fittest survive. This is called natural selection.This process, occurring over millions of years, results in the formation of an entirely new species. The theory of evolution is contrary to the concept of Lamarckism or inheritance of acquired characters which states that characters that an organism acquires during its lifetime can be passed on to its offspring.Common cold spreads faster and is difficult to control”,Give
reason .
Answers
Answer:
Common cold is a viral disease that spreads easily through air and affect the healthy person.
Explanation:
Common cold spreads by more than 200 virus species include rhinovirus,picornavirus etc. that affects the respiratory tract in the human body. This virus is dangerous because it can easily spreads through air and contact with the affected person like shaking hand or by touching any object .The virus may alive for a long period of time that is more than 18 hourThus this is difficult to control and is prevented by routine hand wash and to keep distance from the affected person so that it can't contaminate through the affected person.Which Molecules I needed to cut and copy segment in DNA
Answers
Answer:
Biological catalyst has to be cut.
Explanation:
Enzymes are called "Biological catalyst".Enzymes are called Biological catalysts because they diminish the activation energy for reactions. As the activation energy is reduced the rate of reaction is increased.Many enzymes modify their state when substrates bind and it is known as "Induced fit".Enzymes are nothing but Protein(Biological molecules). Most of the biological reactions are catalyzed by Protein.Enzymes improve the rate of synthetic reactions without getting altered forever by the reaction.For this reason Biological catalyst are needed to be cut and copy segemnte in DNA.
Two steel balls that are the same mass and size are rolled with the same force across different level surfaces.
The ball rolling across carpet will come to a stop faster than the one rolling across concrete because of
A) air resistance.
B) friction.
C) gravity.
D) speed.
Answers
Answer:
The reason why the ball rolling across carpet will come to a stop faster than the one rolling across concrete is the friction (option B).
Explanation:
The contact surface on which the balls move is different. Irregularities in the carpet cause the ball in it to stop faster. The concrete surface is less irregular, and allows the ball to move a little more and then stop. This is due to friction.
In physics, friction is a force that is capable of opposing movement, since the contact of two surfaces limits its movement. A smooth surface produces less friction than a rough or irregular surface.
Since the friction that stops both balls occurs when they are in motion, it is called dynamic friction, that is, the force that causes a moving body to stop.
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Answer:For usa test prep im pretty sure it is friction
Explanation:
Which word refers to the smallest functional unit of a living thing?
cell
eyelash
organ
tissue
Answers
Answer: cell
Explanation: because an organ nor a eyelash is bigger
The picture says it all hope this helps someone
Explanation:
Does anyone know how to solve this?? Pls help ASAP ;(
(sorry that it’s not in focus)
Answers
I'm assuming your equation is (y^4*y^n)/y^2=y^-3 correct?
Exponent rule: a^b*a^c=a^(b+c)
(y^4*y^n)/(y^2)=y^-3 becomes (y^(4+n))/(y^2)=y^-3
Exponent rule: a^b/a^c=a^(b-c)
New equation becomes y^(2+n)=y^-3
Get rid of the bases and you're left with 2+n=-3
Subtract 2 on both sides: n=-5
Answer is n=-5
Hope this helped and please mark as brainliest!
Which is true of sex-linked genes
Answers
Answer:
"They may be on one sex chromosome and not the other" is true of sex-linked genes.
Explanation:
Gender related is a function in which a gene is found on a sex chromosome. It is because the X chromosome is wide and includes a lot more genes than the shorter Y chromosome. In a sex-linked disorder, males are typically affected, because they have a single xerox of the X chromosome that contains the mutation. Prominent examples of sex-related genes in human beings are those that code for colorblindness, or those that code for hemophilia i.e incapacity to make blood clots.
what is allele?differentiate between gene and allele.
Answers
Answer:
Alleles are responsible for the variations in which a given trait can be.
Explanation:
A gene is a portion of DNA that determines a certain trait. An allele is a specific form of a gene. Genes are responsible for the expression of traits.
Answer: Alleles are responsible for the variations in which a given trait can be.
Explanation:
A substance with a pH of 10 is called
a
O water.
O a base.
O neutral.
an acid.
Answers
Answer: A base
Explanation: pH is the measure of the alkalinity or acidity of a substance. In a pH scale, the values ranges from 1 to 14, substances having lower pH values are said to be more acidic while substances with higher pH values are more alkaline or basic. Substances that have pH value of 7 is said to be neutral. pH values ranging from 1 to 6 is acidic while pH values from 8 to 14 is alkaline or basic.
A substance with a pH of 10 is called a base.
Explanation:A substance with a pH of 10 is called a base. pH is a measure of the acidity or alkalinity of a substance, with pH values ranging from 0 to 14. pH values below 7 indicate acidity, while pH values above 7 indicate alkalinity or basicity.
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EXERCISE
Fill in the blank.
1. To form a multicellular organism, a zygote must divide many times in a process called
2. Adult stem cells are considered _, as they can differentiate into several different cell
types in the tissue where they are located.
3. Induced pluripotent stem cells are adult stem cells that have been treated so that they act like
4. A cell produces a chemical that diffuses short distances to reach nearby cells. This type of
cell-cell interaction is an example of
Respond to the following based on your reading.
5. What is tissue, and how does it relate to individual cells?
Answers
Answer:
From Penn Foster
Exercise: Cell and Tissue Development in Multicellular Organisms
A good answer should contain the following:
1. cell proliferation
2. multipotent
3. embryonic stem cells
4.paracrine signaling
5. A tissue is a group of cells that work together to perform specific functions. Tissues require a mix of cells oriented properly and dividing at the rate necessary to replenish and maintain the tissue. Cells in tissue are constantly processing and responding to signals they obtain from their environment.
6. An organism's DNA serves as an instruction booklet of sorts for how to create the organism. In this analogy, one cell type reads one chapter of this genetic instruction manual, and another cell type reads a different chapter. Specific genes are turned off and on to control gene expression for compounds needed by different tissues of the body to allow differentiation into various cell types.
7. Totipotent cells can differentiate into any of the cells in an organism, plus any of the extraembryonic cells; pluripotent cells can differentiate into any of the cells of an organism; multipotent cells can differentiate into a few specific cell types based on the tissue in which the multipotent cell is located. A zygote is totipotent, human embryonic stem cells and induced pluripotent stem cells are pluripotent, and adult stem cells are multipotent.
Explanation:
From Penn Foster
The answer to the blanks are :
Cell proliferation.MultipotentEmbryonic stem cells.Paracrine signaling.A tissue may be a gather of cells that work together to perform particular capacities."Cell and Tissue Development in Multicellular Organisms"
1)To form a multicellular organism, a zygote must divide many times in a process called cell proliferation.
2)Adult stem cells are considered multipotent , as they can differentiate into several different cell types in the tissue where they are located.
3) Induced pluripotent stem cells are adult stem cells that have been treated so that they act like embryonic stem cells.
4) A cell produces a chemical that diffuses short distances to reach nearby cells. This type of cell-cell interaction is an example of paracrine signaling.
5) Tissue and relate to individual cells
A tissue may be a gather of cells that work together to perform particular capacities. Tissues require a blend of cells situated appropriately and separating at the rate essential to renew and keep up the tissue. Cells in tissue are always handling and reacting to signals they get from their environment.Learn more about "Tissue":
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economic importance of earthworm
Answers
Answer:
economic importance of earthworm?
Earthworm has so many economic importance which are listed below;
Aeration of soil
Add humus to the soil
Helps to increase soil fertility and
Explanation:
List the five components that an ecosystem
must contain to survive indefinitely.
Answers
Answer: In order to survive, ecosystems need five basic components: energy, mineral nutrients, water, oxygen, and living organisms.
Explanation: google
An ecosystem must contain abiotic factors, producers, consumers, decomposers, and energy flow to survive indefinitely.
Explanation:An ecosystem must contain the following five components to survive indefinitely:
Abiotic Factors: These are non-living components like sunlight, air, water, temperature, and soil that provide the necessary environment for living organisms in the ecosystem.Producers: These are plants and other autotrophic organisms that convert sunlight into food through the process of photosynthesis.Consumers: These are organisms that rely on other organisms for food. They can be further classified as primary, secondary, or tertiary consumers, depending on their position in the food chain.Decomposers: These organisms break down dead organic matter, releasing nutrients back into the ecosystem. Examples include bacteria and fungi.Energy Flow: The transfer of energy from one organism to another through the food chain. It is essential for sustaining life within the ecosystem.Learn more about Components of an ecosystem here:https://brainly.com/question/34270436
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Suppose the two possible alleles for the height gene are tall and short. If short is recessive to tall, provide the symbol representation and the phenotype for each of the genotype for this trait.
Answers
Answer:
The possible symbol representation and phenotypes will be :
Homozygous dominant: TT, the phenotype will be tall height.
Heterozygous: Tt, The phenotype will be tall height.
Homozygous recessive: tt, the phenotype will be short height.
Genotype can be described as the genetic makeup of an organism which occurs due to the different alleles present in an organism. The phenotype can be described as the physical appearance of traits in an organism.
did gene present in human body with out phenotype
Answers
Answer: depends on the gene you’re referring to. There are genes that do not present with a phenotype.
Phenotype is an observable characteristic. There are many genes that do not have an effect on physical characteristics.
Explanation:
Answer:
did gene present in human body with out phenotype?
No, it is not found in human body
Explanation:
Phenotype is only expressed physically through characteristics such as color, height, among others.
What needed to happen before life could exist on Earth?
Answers
Answer:
The condition of the Earth had to become favourable before it could support any form of life.
The formation of the different layers around the earth like the ozone layer was necessary before life could originate. Primitive species such as some prokaryotes were able to live in hydrothermal conditions during the initial times. With the passage of time, as the concentration of oxygen increased due to photosynthetic prokaryotes, situations became favourable for eukaryotic organisms to arise.
Why is the mixing of fresh water and salt water in the bay important?
Answers
Answer:
When the salt water is mixed with fresh water,it is called brakish water which have the salinity 0.5 to 35 ppt.
Explanation:
The mixing of fresh and salt water is important for aquatic organisms.
The catadromous fish born in marine habitat but they spend their rest of life in the fresh water where growing and maturation takes place.
Ex- Eel is the common example of catadromous fish.
Like wise,
Anadromous fish born in fresh water and spends their life in the sea and return to fresh water for spawning.
For example Salmon, smelt, shad, are common examples.
Thus mixing of water is important for breeding and growing of these fishes.
More over, the brakish water contain world's most diversified life forms.
The mixing of fresh water and salt water in estuaries results in a brackish environment that is vital for many species' life cycles and contributes to a diversity of plant and animal adaptations. These areas are crucial for the ecological health of marine life.
The mixing of fresh water and salt water in estuaries is crucial because it creates a unique environment known as brackish water, which supports a diverse ecosystem. This mixture forms estuaries, biomes characterized by a gradient of salinity levels, which serve as essential nurseries for the young of many species such as crustaceans, mollusks, and fish. Estuarine environments also foster a range of adaptations in plant and animal species, enabling them to survive in varying salinity conditions. For instance, halophytic plants have evolved mechanisms to tolerate saline conditions, either by filtering salt through their roots or by pumping oxygen into their root systems to combat the low oxygen environment caused by higher salinity levels. Animals, such as mussels and clams, have developed behavioral adaptations to cope with the changing salinity, alternating between aerobic and anaerobic respiration as tides change, indicating a rapid physiological challenge these creatures face in their habitat. The tidal actions mix and redistribute the salinity in the estuaries, affecting biodiversity and the health of the ecosystems.
What do micro-algae and macro-algae have in common?
Answers
Answer:
Both algae and microalgae serve as excellent food sources in aquatic ecosystems. They produce most of the oxygen in the atmosphere during photosynthesis. Both algae and microalgae serve as natural filters of phosphates and nitrogenous wastes.
What statement would be true according to the theory of blending inheritance?
a. The offspring of a parent plant with yellow seeds and a parent plant with green seeds will either have yellow or green seeds.
b. The offspring of a parent plant with round seeds and a parent plant with wrinkled seeds will have seeds both round and wrinkled.
c. The offspring of a tall parent plant and a short parent plant will all have a height in the middle.
d. The offspring of a parent plant with purple flowers and a parent plant with white flowers will all have purple flowers.
Answers
The correct option is (b). The offspring of a parent plant with round seeds and a parent plant with wrinkled seeds will have seeds both round and wrinkled.
According to the theory of blending inheritance, the traits of the offspring are a blend of the traits of the parents. This theory was proposed by Charles Darwin and was one of the early models attempting to explain the inheritance of traits.
Let's examine the options based on this theory:
a. The offspring of a parent plant with yellow seeds and a parent plant with green seeds will either have yellow or green seeds. This statement is not consistent with blending inheritance, which would predict that the offspring would have a seed colour that is a blend of yellow and green, such as a pale yellow or a yellowish-green.
b. The offspring of a parent plant with round seeds and a parent plant with wrinkled seeds will have seeds both round and wrinkled. This statement is consistent with blending inheritance, as the seeds of the offspring would be expected to exhibit a phenotype that is intermediate between round and wrinkled, possibly being less round or slightly wrinkled.
c. The offspring of a tall parent plant and a short parent plant will all have a height in the middle. This statement is consistent with blending inheritance, which would predict that the offspring's height would be an average of the parents' heights. However, this is not a definitive statement about the theory, as it does not necessarily apply to continuous traits like height in a straightforward blending manner.
d. The offspring of a parent plant with purple flowers and a parent plant with white flowers will all have purple flowers. This statement is not consistent with blending inheritance, which would predict that the offspring would have a flower colour that is a blend of purple and white, such as lilac or pale purple.
Therefore, the only statement that correctly reflects the predictions of blending inheritance is option b.