The explanations of natural phenomena, and additional hypothesis most often come about as a result of a scientific theory.
Explanation:
Scientific theory is a general explanation of natural phenomena developed through extensive and reproducible observations, more general and reliable than a hypothesis.
Then Every scientific theory starts as a hypothesis. A scientific hypothesis is a solution for an unexplained occurrence that does not fit into a currently accepted scientific theory. It must be based on careful rational examination of the facts.
Which role do bacteria serve?
A. creators of energy
B. recyclers of matter
C. recyclers of energy
D. destroyers of matter
Answer:
I said d
Explanation:
7. When a snake moves to a sunny place to keep warm, the snake is responding to what kind of stimulus?
learned
innate
external
Internal
Answer: external
Explanation: warmth on outside so u can feel inside
What special structures are needed for green plants?
chloroplasts and chlorophyll
stems and roots
cotyledon and embryo
flowers and spores
Answer:
chloroplasts and chlorophyll
Answer:
chloroplast and chlorophyll
What is heterotroph that consumes the carcasses of
dead animals but does not typically kill them
itself
Answer:
Detritivores, such as earthworms, feed on dead matter. > ... Scavengers, such as vultures, consume the carcasses of other animals.
Explanation:
Final answer:
A scavenger is a type of carnivore that feeds on the carcasses of dead animals without hunting them down. Heterotrophs such as scavengers rely on consuming other organisms for energy, while saprotrophs decompose the remaining organic matter after scavengers have consumed the soft tissues.
Explanation:
A heterotroph that consumes the carcasses of dead animals but does not typically kill them itself is known as a scavenger. These organisms play a crucial role in the ecosystem by breaking down the soft tissues of dead animals, such as the remains of a predator's kill. Scavengers are a type of carnivore and are distinct from predators that hunt and kill live prey. Some well-known scavengers include vultures, hyenas, and certain species of crabs.
Heterotrophs are organisms that cannot produce their own food and thus rely on the consumption of other organisms for energy. They can be classified as photoheterotrophs if they use light for energy or chemoheterotrophs if they use chemical energy. Additionally, near the bottom of the decomposition process, organisms known as saprotrophs, mainly bacteria, and fungi, are responsible for the breakdown of any remaining organic material, completing the process of decomposition started by scavengers and other consumers.
31. Which process is used to produce beer and wine?
a. lactic acid fermentation
b. glycolysis
c. alcoholic fermentation
d. the Krebs cycle
The alcoholic fermentation process is used to produce beer and wine.
Option: C
Explanation:
Answer:
alcoholic fermentation
Explanation:
Which statement explains how weight is different from mass?
Mass is a varying property
Mass is measured in newtons,
Weight is always greater than mass,
Weight is a measure of gravitational pull.
Answer:
Weight is a measure of gravitational pull.
Weight is a type of force which attracts things towards the center of earth. Weight is measured in Newton. Weight depends on the gravity of earth. Weight changes due to change in height. Value of gravity is higher at the center of earth and six times lower at the moon because of no gravitational force of earth.
Answer:
D.Weight is a measure of gravitational pull.
Which statement describes the offspring of the Fı generation when crossing a pea plant that is true breeding for green seeds with
a pea plant that is true breeding for yellow seeds?
The green trait is the dominant trait.
The offspring will inherit one allele from each parent.
The offspring will have both green and yellow seeds.
Each offspring will have a unique set of alleles.
The offspring will inherit one allele from each parent.
Explanation:The genetic crossing experiments lead to the formation of different hybrids which has several characters unlike their parents. Here the parents are homozygous.
One of the parent is homozygous yellow with respect to seed colour. So genetic combination of the parent will be YY.
The other parent is homozygous green with respect to seed color. So genetic combination of the parent will be yy.
Now as they are crossed the offsprings will have genetic combination of Yy.
This is seen that the offsprings carry one allele from both the parents.
What happens during interphase?
O
A. The spindles attach to chromatids.
O
B. The chromosomes are duplicated.
O
C. Two haploid gametes are formed.
O
D. Tetrads are pulled apart.
Answer: b. The chromosomes are duplicated.
Explanation: Interphase is when a cell grows and duplicates its DNA in preparation for cell division.
A nuclear membrane forms around the chromatids that came from different chromosomes
Answer:
False
Explanation:
They are identical. It happens during the anaphase. Then during telephase a nuclear membrane will form around each set of chromosomes to separate the nuclear DNA from the cytoplasm.
The high surface temperature on Venus of ________ is due to the __________.
700 K, greenhouse effect
500 K, acid rain
500 K, volcanoes
750 K, weather
Answer:
Venus is effected by greenhouse effects. A
will there be any fishes if water couldn't evaporate
Answer:
No, if water is not evaporated, it doesn't affect fishes. Fishes need water for its survival and growth. If water is evaporated from fish tank, the quantity of water is reduced in the tank and fish life is in danger if all water is evaporated. If water is not evaporated from fish tank, it is good for fish growth and development.
one parent is homozygous cleft chin and the other is heterozygous. MAKE A PUNNET SQUARE to show the propability in their offspring will be heterozygous for a cleft chin.
Answer:
50% AA and 50% Aa
Explanation:
Punnet square is a tool used to examine the offspring's genotype result of a breeding experiment. We will need to put the genotype of a parent in the row, and other parents at the column. The parent is homozygous(AA) and heterozygous(Aa), the square will be:
AA
A A
A AA AA
Aa a Aa Aa
The result will be 50% AA and 50% Aa
(04.01 LC) Which of these is made up of cells and tissues that perform a larger function? (5 points) Atom Compound Molecule Organ
Answer:Organ
Explanation:An organ may be defined as a group of tissues which perform similar functions. Organs can be found in both plants and animals,functionally related organs often cooperate to form systems. These organs are interdependent on each other to make up organ systems. Organ systems can be found in the different parts of the body. For instance,the esophagus,stomach and liver make up the digestive system and in the excretory system the skin and kidney are examples of the organs that can be found here. The main tissues of an organ tend to have the same embryological origin. This simply means that they arise from the same germ layer and by germ layer we mean the primary layer of cells that form during embryonic development. In plants however,the main organs are the roots,stem and leaves whose primary functions are to give nourishment to the plant. Reproductive organs of plants include the seed,flowers and spores which maintain the basic life processes of the plant.
Answer: Organ
Explanation:
1. Cells reproduce by splitting in half, a process called cell division. What do cells need to do
between divisions to make sure that they don't just get smaller and smaller?
Answer:
they must grow.
Explanation: what's the point of splitting so you can grow if you don't grow?
(yeah not really specific i know but what else can i say?)
Cells perform DNA replication and organelle duplication during the cell cycle to ensure that after division, daughter cells do not decrease in size but maintain full functionality. This process, which includes mitosis or meiosis depending on the cell type, is critical for proper growth, development, and health maintenance.
To ensure that cells do not just get smaller and smaller with each division, they must grow and duplicate their contents, including DNA replication and organelle duplication. Cell division is one component of the larger cell cycle, which includes preparation for division as well as the actual process of dividing. DNA replication is a critical step that occurs before a cell divides. During DNA replication, the cell's DNA is copied to produce two identical chromosomes.
This ensures that each daughter cell inherits a complete set of DNA, which is essential for producing the proteins necessary for the cell to function properly. In addition to DNA, other cellular components must also be replicated to maintain cell function and size after division. The cell cycle and processes like mitosis in somatic cells and meiosis in sex cells ensure the continuity of life and proper organism growth and development. The accurate copying of genetic information during cell division is imperative for the longevity and health of both single-celled and multicellular organisms.
Which of the following is a fossil fuel?
A) water
B) gasoline
C) carbon dioxide
D) ice
Answer:
B) gasoline
Explanation:
yes
Answer:
gasoline
Explanation:
it's it's a natural field such as a coal or gas formed in the gorge Alaska space for the remains of living organism organism he's going to be like
Which of the following best describes the process of meiosis?
A it is the first stage of mitosis
B it occurs in all tissues that require growth or replacement
C it happens in all cells except in the brain and nervous system.
D it is carried out in cells that are involved in sexual reproduction
i think is B= It occurs in all tissues that require growth or replacement
2 Points
Which of these is a cultural service - a nonmaterial benefit people get from
the environment?
O
A. Providing national parks
O
B. Pollinating plants
O
C. Providing building materials
O
D. Recycling nutrients
SUBMIT
Answer:A: Providing national parks
Explanation:
What is the proposed ultimate result of global warming?
A) space exploration
B) ice age
C) volcanic activity
D) increased shark attacks
Answer:
C but Humans burning fossil fuel is number 1
How is it possible for an offspring to exhibit a recessive trait if neither parent exhibited that recessive trait? What must be true about the parents’ genes for this to occur?
Hello!
I will use a capital letter to demonstrate dominant (B) and lowercase letter to demonstrate recessive (b).
The given scenario would only be possible of both of the parents had heterozygous genes (Bb), meaning that they have one dominant allele and one recessive allele.
The offspring will only exhibit a recessive trait if that particular gene has two recessive alleles (bb). If both parents have only one recessive allele (Bb), then neither will exhibit the recessive trait.
It is possible, however, that each parent will pass on their one recessive allele. In this case, the offspring would now have two recessive alleles (bb) and begin exhibiting the recessive trait.
I hope this helps!
Answer: it is possible for an offspring to exhibit a recessive trait if neither parent exhibited that recessive trait if both parents are heterozygous for the trait. The parents' genotype must be heterozygous i.e., having one dominant allele and one recessive allele.
Explanation: It is possible for an offspring to exhibit a recessive trait when neither of the parents exhibited the recessive trait.
For example, if (A) is the allele for normal skin colour and it is dominant to (a) which is the allele for albinism that is recessive, two parents with heterozygous genotype Aa will have offsprings with the following possible genotypes: Aa x Aa = AA, Aa, Aa and aa.
One of the offsprings will inherit recessive allele for albinism from each parent (aa), and thus will manifest outwardly as albino child.
which of these has been improved by genetic engineering
Answer:
Resistance of corn plants to insects.
Explanation:
Resistance of corn plants to insects has been improved by genetic engineering. The correct option is D.
What is genetic engineering?The modification and manipulation of an organism's genes through technology is known as genetic engineering, often referred to as genetic modification or genetic manipulation.
In order to fix genetic flaws and hence prevent or treat hereditary illnesses, gene therapy aims to change specific genes.
Genetic engineering has increased corn plants' insect resistance. R genes (resistance genes), whose byproducts mediate resistance to particular virus, bacterium, oomycete, fungus, nematode, or insect strains, have evolved inside plants.
Gene silencing is a technique used by plants and insects to effectively fight viruses.
This system views a virus as a gene that is expressing itself inappropriately. As a result, plant cells disable it by cutting the viral RNA into little bits.
Thus, the correct option is D.
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Your question seems incomplete, the missing options are:
A Visibility of insects to predators
B Growth of insects in cornfields
C Reduced number of pollinating insects
D Resistance of corn plants to insects
Mitosis - responsible for growth, repair, and development in all cells. Can you place the stages of mitosis in correct order?
Answer: prophase, (prometaphase,) metaphase, anaphase, and telophase
Explanation:
what is the habitat of a hummingbird clearwing moth
Answer:
It is found in a wide variety of habitats which includes open meadows,forest edges, and some suburban gardens.
Explanation: these are birds which fly during the day unlike most of sphinx moths that fly at night.
They feed on flower nectars
What is a consequence of excess protein intake?
Excessive protein intake can lead to kidney problems, weight gain, and nutrient imbalances.
Explanation:An excessive intake of protein can have several negative consequences on the body. One consequence is an increased risk of kidney problems, as the kidneys have to work harder to filter and eliminate the excess protein. Another consequence is potential weight gain, as excess protein can be converted into body fat if it is not used for energy. An excessive protein intake may lead to nutrient imbalances, as a diet high in protein may lack other essential nutrients.
Additionally, imbalanced protein consumption can disrupt nutrient ratios in the diet. It is important to maintain a balanced diet and consult with a healthcare professional or nutritionist to determine the appropriate protein intake for individual needs and goals.
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An excess of protein in the diet can lead to health complications, especially concerning the kidneys due to the overproduction of glycogen. This unregulated production results from the body's need to use or store the excess, which can create strain and eventually health problems. Therefore, a balanced diet is crucial for maintaining appropriate levels of proteins.
Explanation:Excessive protein intake, much like an imbalance of any macromolecule in one's diet, can lead to various health problems. A significant consequence of excess protein intake can be related to the kidneys. Consuming an excess of protein can lead to an overproduction of glycogen, which is typically used to produce energy when food resources are scarce.
Normally, proteins are essential for our bodies functioning, being a vital part of the structure of our cells, enzymes, and much more. However, when proteins are present in excess, the body is forced to convert them into glucose or triglycerides in order to use or store them. This unnatural production of glycogen can place undue strain on the kidneys, possibly leading to health problems.
Equally, just as metabolic fuel sources are necessary for functioning, an imbalance can create complications. Therefore, although proteins can serve as potential fuel sources, this is only true when balanced appropriately, highlighting the importance of a well-regulated diet and lifestyle.
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Explain how energy is transferred through a food chain
Answer: Energy is passed between organisms through the food chain. ... Plants harvest their energy from the sun during photosynthesis. This energy can then be passed from one organism to another in the food chain. The organism that obtains energy from sunlight is called the producer. Percentage They have 100% of the energy in a food chain.
The energy is transferred through a food chain in a very precise manner. The process of energy transfer is initiated by plants (producers).
What do you mean by Food chain?The Foodchain may be defined as the sequence of transfers of matter and energy in the form of food from organism to organism.
Plant in the presence of sunlight produces their food, then plants are eaten by herbivores where energy is transferred from plants to herbivores, then herbivores are eaten by carnivores, then energy is transferred from herbivores to carnivores and goes on like that. But one thing keeps in mind, only 10% of the energy gets transferred from one trophic level of the food chain to other.
Therefore, the energy is transferred through a food chain in a very precise manner. The process of energy transfer is initiated by plants (producers).
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Producers that are part of your diet
Answer:
and plant so fruits and vegetables
•lettuce
•carrots
•spinach
•carrots
•broccoli
•brussel sprouts
•green beans
•snow peas
•seaweed
•kelp
•kiwis
•strawberries
•blueberries
•banana
•cherries
•raspberries
•blackberries
•pomegranates
•apples
•dragon fruit
•starfruit
etc. etc. etc.
☆i hope this helped! :) have a nice day☆
Why is it important for ecologists to be aware of forest deforestation?
Answer:
Why is it important for ecologists to be aware of forest deforestation?
As an ecologist, both biotic and abiotic interactions matters which calls for deforestation must be curtailed by an ecologist as it reduces the oxygen content in the atmosphere which is essential to life
Explanation:
Final answer:
Ecologists must be aware of deforestation because it leads to biodiversity loss, disrupts the water cycle, and causes soil erosion. Deforestation also diminishes forests' carbon sink function, contributing to climate change. Sustainable forest management and reforestation are essential to mitigate these negative impacts.
Explanation:
It is important for ecologists to be aware of forest deforestation because it leads to significant environmental and ecological issues. The removal of trees at a faster rate than they can be replenished causes loss of biodiversity, disruption of the water cycle, and aggravated soil erosion. In tropical areas, the elimination of trees results in degraded soils that cannot support new forest growth due to the loss of essential nutrients which were once recycled by the forest ecosystem. Furthermore, forests serve as carbon sinks, absorbing carbon dioxide from the atmosphere; their destruction contributes to increased greenhouse gases and climate change.
One of the most critical ecosystems affected by deforestation is the tropical rain forest, renowned for its vibrant biodiversity. These forests are not just home to a plethora of species, but also contribute to potential medical and biological breakthroughs. The extinction of species accelerates as their habitats are destroyed. Deforestation impacts not just the environment but also the native species that depend on these habitats for survival. Ecological balance, poverty alleviation, and sustainable development face significant hurdles due to deforestation.
One of the crucial steps toward combating deforestation involves integrating afforestation, reforestation, and natural regeneration policies. These practices, along with smart management such as strip cutting and secondary forest regeneration, offer hope in mitigating the catastrophic loss created by deforestation. Governments and private sectors must work together to implement policies that curb deforestation and promote sustainable use of forest resources.
As you drive along a road trees in the middle distance seem to shift in position relative to far away hills were name give this ph In the middle distance seem to shift and position relative to faraway Hills what name is given to this phenomenon
Answer:
Parallax
Explanation:
"Parallax" refers to a displacement of an object's position in space (as being seen by an observer) when looking at the object along two varying sight lines. The projection of objects that are near shows a larger parallax than the objects that are farther away.
This is the phenomenon which explains why the road trees in the middle distance seem to shift in a position that is relative to the far away hills.
So, this explains the answer.
a pollutant released on one continent is found concentrated in the tissues of organisms on another continent. Is this likely an air, land, or water pollutant? Explain
Answer:
It is most likely an air and water pollutant.
Explanation:
The continents are separated with water and air. Therefore, if a pollutant is released from one continent, it could have transported to the other continent via water and air. Although the effect of air is less due to dispersing of air masses, it still have a chance to transport the pollutant at far distance. This phenomenon can also be related with the transboundary pollution where a pollutant travels to another place. For example, many persistent organic pollutants have beend detected in the bodies of polar bears living in arctic.
A pollutant found concentrated in organisms across continents is likely an air pollutant, as air pollution can spread far and wide, crossing continental boundaries due to the wind currents and atmospheric deposition.
Explanation:A pollutant released on one continent and found concentrated in organisms on another continent is most likely an air pollutant. This is because air pollution has the capability to spread across vast distances and is known to be a significant nonpoint source of pollution. Airborne contaminants, such as nutrients and pesticides, can travel far from their original source, as they are carried by wind currents and can eventually settle in different regions via atmospheric deposition. This process enables pollutants to contaminate areas far from where they were released, often crossing continental boundaries.
Examples of this long-range transport of pollutants include acidic compounds contributing to acid rain, or industrial emissions leading to the accumulation of chemicals in the food chain of remote areas. The spread of air pollution can result in ecological disasters, as documented by the shrinking of West Africa's Lake Chad, partially attributed to European air pollution that reduced rainfall. While soil and water pollutants also pose significant environmental threats, their movement is typically more localized and less likely to reach distant continents without human activity directly transferring them.
It's important to address air pollution through regulations and awareness, as it not only affects local environments but can also have far-reaching consequences on global ecosystems and public health.
Which of the following is
NOT a type of particle that
is found in the nucleus of
an atom?
A. electron
B. proton
C. neutron
Answer: electron
Explanation:
An atom is made up of subatomic particles: proton, neutron and electron.
Proton and neutrons are found in the nucleus of atoms while electron is found outside the nucleus.
Thus,the only particle not found in the nucleus is electron.
What is the product of transcription and translation?
O
O
A. Nucleic acids
B. RNA
O
c. Proteins
O
D. DNA
Answer: Proteins
Explanation: Proteins are produced in a process by which the genetic information in an mRNA sequence is converted into a polypeptide chain. The first step in the process of protein synthesis is transcription. Transcription is a process by which the genetic message encoded in a DNA is copied into an mRNA. Transcription takes place in the nucleus. After transcription, the mRNA leaves the nucleus and enters the ribosome where translation takes. In the ribosome, the mRNA sequence is used to make a protein. The genetic information encoded in the mRNA strand is converted into a polypeptide chain. The newly synthesized polypeptide chain undergoes posttranslational modifications to become a biologically functional protein.