Why is the mixing of fresh water and salt water in the bay important?
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 is a societal problem that science can best help solve
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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In mitosis, how does the number of chromosomes in a daughter cell compare to the number of chromosomes in a parent cell?
Question 10 options:
The daughter cell has one-fourth the number of chromosomes.
The daughter cell has one-half the number of chromosomes.
The daughter cell has twice the number of chromosomes.
The daughter cell has the exact same number of chromosomes.
The daughter cell has the exact same number of chromosomes
In mitosis, when the number of chromosomes in a daughter cell is compared to the number of chromosomes in a parent cell, the daughter cell has the same number of chromosomes as the parent cell.
What is mitosis?Mitosis is the division of a parent cell into two identical daughter cells, each with the same number of chromosomes.Meiosis, on the other hand, results in four distinct daughter cells, each with half the number of chromosomes as the parent cell.During the mitotic process, daughter cells are formed from the parent cell and have the same chromosome number as the parent cell.During mitosis, equatorial division occurs, resulting in two daughter cells with identical genetic makeup.Mitosis is traditionally divided into five stages: prophase, prometaphase, metaphase, anaphase, telophase, and cytokinesis.
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did gene present in human body with out phenotype
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.
The observed results of an oxperiment that occur from changes in the test variable (independent variablo) are known as _
A.
outcome variables
B.
trials
c.
D.
constants
controlled variables
Answer:outcome variables
Explanation:
Answer:
outcome variable it correct a f
Explanation
4. A small population of chimpanzees lives in a habitat that undergoes no changes for a long period.
How will genetic drift probably affect this population?
a. It will accelerate the appearance of new traits.
b. It will promote the survival of chimpanzees with beneficial traits.
c. It will increase the number of alleles for specific traits.
d. It will reduce genetic diversity.
Genetic drift is the dramatic almost sped up process of natural selection due to the untouched habitat the species I lives in. Genetic drift is characterized by the changing in alleles, whether more or less, natural selection could care less as long as they're creating diverse populations.
Answer:
It will reduce genetic diversity by decreasing the frequency of some alleles and increasing the frequency of others.
Explanation:
Flvs (05.02A MC)
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.
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.
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.
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
Answer: cell
Explanation: because an organ nor a eyelash is bigger
The picture says it all hope this helps someone
Explanation:
What is the internal environment and explain how it is related to the inside of a cell, the interstitial fluid and to the outside world?
Internal environment and its relation with inside cell
Explanation:
Internal environment of an organism is water-based where the body cells exist.The fluid known as tissue fluid washes the body cells.Oxygen and nutrients are carried to the cells from Internal Transport system of the body. Interstitial fluid is found in between the spaces of cell. It comes out from the substances that flow out from the blood capillaries. Oldertissue fluid is replaced by new fluid where older flood drains towards lymph vessels.The internal environment is the environment within an organism's body, including inside a cell and the surrounding interstitial fluid. It is closely related to the outside world as changes in the external environment can affect the internal environment.
Explanation:The internal environment of an organism is the environment within its body, made up of the cell's inside environment and the interstitial fluid that surrounds the cells. The inside of a cell and the interstitial fluid together create a stable environment that allows the cells to function properly and maintain homeostasis.
The internal environment is crucially related to the outside world. Changes in the external environment can directly or indirectly affect the internal environment. For instance, changes in temperature can affect the cellular metabolism while changes in nutrient composition can influence the available substances for the cells. Thus, an organism needs to constantly adapt to changes in the external environment to keep its internal environment steady and function normally.
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economic importance of earthworm
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:
Exploring the Orbits of Dwarf Planets
Use the information from the article to answer the question.
Dwarf Planet
Which statements apply to the orbits of dwarf planets? Check all that apply.
Dwarf planets orbit the Sun.
Pluto could collide with Jupiter
Dwarf planets are round.
Pluto is a dwarf planet
Eris could collide with Uranus
Answer:
A,C and D on edu
Explanation:
Dwarf planets, including Pluto and Eris, orbit the Sun and are spherical. They won't collide with other planets due to the nature of their orbits.
Explanation:The statements that apply to the orbits of dwarf planets include:
Dwarf planets orbit the Sun.Dwarf planets are round.Pluto is a dwarf planet.Pluto and Eris, among other dwarf planets, follow an elliptical path around the Sun that does not risk collision with Jupiter or Uranus. These celestial bodies have an orbital path that ensures designed space and no interference with other planets' orbits.
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The electron transport chain is common to both respiration and photosynthesis. However, there are some differences
in the steps involved in the electron transport chain in both processes. The table lists some steps in the electron
transport chain
Which of these CORRECTLY shows where the steps take place?
In photosynthesis, the electron transport chain (ETC) occurs in the thylakoid membrane of chloroplasts. In contrast, in cellular respiration, the ETC takes place in the inner mitochondrial membrane. This creates a proton gradient that drives ATP synthesis in both processes.
Explanation:In both photosynthesis and cellular respiration, the electron transport chain (ETC) takes place in the membrane structure of the cell. However, the location within that structure varies between the two processes. In photosynthesis, which occurs in plants and some bacteria, the ETC occurs in the thylakoid membrane of the chloroplasts. Here, light energy is used to move electrons from water to NADPH. In cellular respiration, which happens in all living organisms, the ETC is located in the inner mitochondrial membrane and it helps move electrons from NADH and FADH2 to oxygen, which is then reduced to water. The flow of electrons through these ETCs creates a proton gradient that drives ATP synthesis.
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Scientific concepts and principles
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.
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
Answer:
D. I, II, IV, and V only
Some viruses are RNA-based—ejecting their single-stranded RNA into the cell of a host. Let's say we are dealing with this type of virus. We also find it to be the type of RNA-based virus that has its RNA strand first converted into a complementary RNA strand using the host cell's RNA polymerase. Then this viral complementary RNA strand is used by the host cell's ribosomes to make new proteins.
If an RNA-based virus like the one we have here were to be considered a living thing, make an argument as to why the virus's RNA would be considered its primary source of heritable information. Also explain why this virus's primary source of heritable information would NOT be the DNA, RNA, or RNA polymerase of the infected cell.
The DNA, RNA or the RNA Polymerase of the infected cell would not be virus's primary source of heritable information because it has the ability to integrate into host cell and get itself replicated, also it causes infection so multiplication becomes necessary.
Explanation:
The virus has reverse transcriptase enzyme in them which works slightly different. It transcribes RNA into DNA and eventually gets integrated into the genome of the host. It is here the DNA in the host cell is transcribed and translated. Thus it is modelled to have RNA as genetic material.
When virus infects the living cell by a process called a lytic infection, it injects its genetic material into it to get replicated and increase its number and eventually bursts the infected cell. Since a virus causes infection, it has to increase in number so it uses its own genome to get replicated.
Common cold spreads faster and is difficult to control”,Give
reason .
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.A substance with a pH of 10 is called
a
O water.
O a base.
O neutral.
an acid.
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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What do micro-algae and macro-algae have in common?
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.
Does anyone know how to solve this?? Pls help ASAP ;(
(sorry that it’s not in focus)
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!
what were characteristics of the Roman empire at its height there are more than 1 answer
Answer:
did not suffer any major wars
Explanation:
Answer:
The Roman Empire, at its height (c. 117 CE), was the most extensive political and social structure in western civilization.
Terms in this set (8)
gov. a federation of many self-ruled cities and states rather than a uniform bureaucratic state.
citizenship, laws, and legal penalties. not uniform but varied according to the status. ...
senate. ...
infantry. ...
other religions. ...
slaves. ...
patriarch of a family. ...
roman women.
Explanation:
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?
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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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.
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.
Which concept is not a part of the theory of evolution
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.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.
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)
Which organelle provides protection and support to a cell?
Cell wall
Cytoplasm
Nucleus
Ribosome
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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what is allele?differentiate between gene and allele.
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:
What’s the meaning of diagnoses
Answer:
A diagnoses is something a person has whenever they are sick or have something the doctor tells them they have a diagnoses.
Explanation:
1. Why do you think seagrass beds might filter excess plant
nutrients and sediment well?
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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A pea plant that is tall has a dominant trait. Which statements are true about the genotype/phenotype relationship of the plant?
Select all that apply.
a. If the phenotype is tall, the genotype must be tt.
b. The genotype Tt always results in a phenotype that is tall.
c. When the genotype is Tt, the phenotype will be short.
d. When the phenotype is tall, the genotype can either be TT or Tt.
Answer:
B. & D.
Explanation:
Answer:
your answer is d and b
Explanation: