Answer:
C. They help break down dead organic matter and return nutrients to the soil.
Explanation:
Decomposers are organisms that break down other dead organisms. They also return nutrients to the soil.
Two mammals with the genotype CcEr are crossed. 'C' produces a thick coat of fur and is dominant to 'c', which produces a thin fur coat. 'E' produces brown eyes and is dominant to 'e', which produces red eyes. What fraction of offspring would you except to have both a thin fur coat and brown eyes?
Answer:
3/16 of the kids would be expected to have a thin fur coat and brown eyes.
Explanation:
Use the punnet square method.
The fraction of offspring would you except to have both a thin fur coat and brown eyes is 3/16.
What is Punnett Square?A Punnett square is defined as a helpful tool to help predict variations and probabilities which may come from cross breeding in which plants, animals, even humans interbreed with each other. This is used by biologists for determining the probability of an offspring having a particular genotype.
The information given above is dizygotic cross which is a cross between two individuals having two observed traits which are controlled by two different genes. In this case, the two traits are thick and thin fur coats (C and c, respectively) and brown and red eyes (E and e, respectively).
The expected phenotypic ratio of crossing heterozygous would be 9:3:3:1 which produces
9 Thick fur coat and Brown eyes mammals (9/16 fraction)
3 Thick fur coat and Red eyes mammals (3/16 fraction)
3 Thin fur coat and brown eyes mammals (3/16 fraction)
1 Thin fur coat and red eyes mammals (1/16 fraction)
Thus, the fraction of offspring would you except to have both a thin fur coat and brown eyes is 3/16.
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Explain why decomposers are an important part of a food chain.
Answer:
Decomposers are vital to the food chain because they help recycle nutrients back into the system.
Explanation:
Decomposers like fungi and bacteria play most important role. They break down material that are dead or unused and turn them into nutrients in the fields or soil that plants use to grow.
Answer:
Decomposers are the organisms which change over complex materials into less difficult ones, often changing organic materials into inorganic ones. This, in turn, makes those assets available for use by other organisms. Decomposers, then, are crucial to the cycling of supplements in the ecosystem.
Which of the following is NOT an example of mechanical digestion? MULTIPLE CHOICE.
A. Amylase breaking down starch in the mouth
B. Churning of food in the stomach
C. Segmentation of food in the small intestine
D. Chewing of food in the mouth
Answer:
C segmentation of food in the small intestine
Explanation:
mechanical digestion occurs only in the mouth and that is the only one that does not occur in the mouth.Even though Both mechanical and chemical digestion occur in the mouth. ... The muscles in the stomach walls churn the bolus (mechanical), allowing it to mix with digestive enzymes and gastric acids (chemical). This process converts the bolus into a liquid called chyme. Digestion continues in the stomach for several hours. so c is the answer
What is the normal respiration rate for horses, in breaths per minute?
Answer: 8 to 12 breaths per minute
Explanation:
Fred is studying his notes from anatomy class. One list in his notes describes features of a CNS structure.
anterior horns and posterior horns
gray matter inside, white matter outside
hippocampus
central canal
Fred thinks this list contains an error. Which best describes the error?
A) Most items are features in the brain, but the gray and white matter locations correspond to the spinal cord.
B)Most items are features in the brain, but the horns are in the spinal cord.
C)Most items are features in the spinal cord, but the central canal is in the brain.
D)Most items are features in the spinal cord, but the hippocampus is in the brain.
Answer: D!!!!!
Explanation: JUST DID IT!!!
The list that contains an error is most items are features in the spinal cord, but the hippocampus is in the brain. The correct option is D).
What is CNS?
CNS means the central nervous system that contains the parts, brain, and spinal cord of animals. Its job is to control voluntary and involuntary movements of the body.
The hippocampus is a complex structure of the brain present in the temporal lobe, not the spinal cord.
Thus, the correct option is D) Most items are features in the spinal cord, but the hippocampus is in the brain.
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Giraffes, camels, and horses share some traits, although they vary in other traits. Which statement accurately describes the evolution of these species?
Answer:
If there are options for this question, I couldn't find them online but I can tell you that one statement that describes the evolution of these species is that each of them shared an ancient ancestor.
Explanation:
The ancient common ancestor that these species share is that animal, in this case, from which all species descend.
It is the only species of living being that has evolved over the years and its original traits have varied, which led to the creation of all these species. That is why some of those traits will still be shared by them, while others, due to evolution, will not.
That is why we could say that these animals belong "to the same family" since they all come from the same ancestor.
What are the rules for writing the scientific name
Answer:
There are rules to follow when writing a scientific name. The genus name is written first.
The specific epithet is written second.
The specific epithet is always underlined or italicized.
The first letter of the specific epithet name is never capitalized.
Leah, LaRenda, and Gabi decide to test what factors influence water
absorption by an egg. They remove the shell from 3 eggs by dissolving
them in vinegar. They create three different water solutions. One is pure,
100% distilled water, a second is 50% water/50% corn syrup, and the third
is 100% corn syrup. The mass of each egg is measured before they are put
into a single solution for 24 hours. The mass of the eggs is then measured,
and the data recorded below: Based on the data this group gathered, the
most appropriate hypothesis would be
Answer:
how long well that take
In this experiment, the independent variable they are testing is the type of solution in which the egg is placed.
What is the independent variable?In the data, the independent variables are the factors that do not depend upon the other factors, on the other hand, dependent variables depend on independent variables.
In the experiment they used three different solutions ate three different water solutions. One is pure, 100% distilled water, a second is 50% water and 50% corn syrup, and the third is 100% corn syrup, all are three independent solutions.
The independent variable is the cause which does not depend on any other factor in your study, all the solutions are different mixtures creating different variables.
Therefore, the solutions used for eggs are the independent variable.
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The given question is incomplete, so the most probably the complete question is,
Leah, LaRenda, and Gabi decide to test what factors influence water absorption by an egg. They remove the shell from 3 eggs by dissolving them in vinegar. They create three different water solutions. One is pure, 100% distilled water, a second is 50% water/50% corn syrup, and the third is 100% corn syrup. The mass of each egg is measured before they are put into a single solution for 24 hours. The mass of the eggs is then measured, and the data is recorded below:
In this experiment, the independent variable they are testing is?
Which would cause the body to release more water through the excretory
system?
A. Losing salt through the skin
B. Eating salty foods
C. Jogging in a gym
D. Sweating on a hot day
Answer:
B
Explanation: Hormone control of water and salt
Rehabilitation of water is regulated by the antidiervative hormone (ADH) in negative feedback. ADH comes out from the pituitary gland in the brain. Except for fluid levels in the blood, the hypothalamus causes pituitary to release ADH in the blood. ADH works to increase the absorption of water in the kidney. It puts more water back in the blood, increases the concentration of urine. When there is too much fluid in the blood, sensor in the heart indicates the hypothalamus due to a decrease in the amount of ADH in the blood. It increases the amount of water absorbed by the kidney, resulting in a large amount of diluted urine.
Aldosterone, a hormone that passes through the kidney, controls the transfer of sodium in the blood from nephron. When sodium level falls in the blood, aldosterone is released in the blood, which leads to sodium from nephron to blood. This induces water to flow into the blood via osmosis. Renin has been left in the blood to control aldosterone.
I think this is correct, I hope I help u. :)
Sweating on a hot day would cause the body to release more water through the excretory system.
What is excretory system?Excretory system refers to system of the body that consist of excrete organs like large intestine, skin which help to excrete or passed out waste product out of the body which can be toxic to the body.
Therefore, Sweating on a hot day would cause the body to release more water through the excretory system.
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How would the gravity change if the earth was farther away fro maybe sun?
Answer:
The closer the planet is to the Sun, the greater the pull of the Sun's gravity, and the faster the planet orbits.
Explanation:
Which word best describes the nature of predator-prey dynamics in stable communities?
Answer:
Cyclic
Explanation:
It is cyclic because as the number of predators increase in the ecosystem, the number of preys decreases with time. This decrease in preys means lesser food resources for the predators which then decreases the population of the preys. As the predators decrease the number of preys starts to recover and increase in population.
The cycle goes on and on which makes it a cyclic relationship in the nature of predator-prey dynamics in stable communities
The word that described the nature of predator-prey dynamics in stable communities is Cyclic.
What is Cyclic?It should be cyclic since the no of predators should be raised in the ecosystem also the number of prey should be decreased along with time. Here the reduction of prey represents that there are fewer food resources due to which it reduced the preys population. Also, when the predators reduced the no of preys so it begins to recover due to which the population is increased.
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which elements are essential for living organisms to survive
Answer:
Food, Water, Shelter, oxygen
Explanation:
Giving brainlist need help ASAP!!!!
Smog is an abiotic factor affecting a biotic factor(s).
This is because smog isn't a living organism so it is abiotic while humans are multicellular organisms so therefore, they are biotic factors.
Smog has a negative effect on many biotic factors.
Large-scale evolutionary trends are the result of _____.
-artificial selection
-macroevolution
-phenotypic variation
-microevolution
Answer:macroevolution
Explanation:
Answer: b. macroevolution
Explanation: gradpoint/pearson
Which examples show how DNA technology has been used in medicine?
The hormone testosterone can be produced through genetic engineering.
Pacemakers can help to regulate heartbeats.
Antibiotics like amoxicillin are available all over the world.
Crops can be grown with less water available.
Vaccines can be mass produced from transgenic bacteria.
DONE
Answer:
A, C and E
Explanation:
Genetic Engineering is the process which involves the manipulation of genetic material of an organism to get beneficial traits.
Genetic engineering can be used in the field of medicine to produces hormones( insulin), vaccines, and antibiotics (amoxicillin) et cetera. These substances can be produced in genetically engineered microorganisms by altering their genetic material.
A hundred years ago there were 350 000 blue whales.
Now there are only about 10 000 blue whales.
Suggest why the blue whale population has decreased.
Answer: The primary threats currently facing blue whales are vessel strikes and entanglements in fishing gear .Also illegal hunting.
Explanation:
Answer:
Blue whales were significantly depleted by commercial whaling activities worldwide. The latest stock assessments of blue whales include data for various stocks, including areas of the North Pacific and western North Atlantic Oceans.
Whaling killed hundreds of thousands of blue whales from the early 1900s until it became illegal in 1966. Blue whales continue to be threatened by boats, anthropogenic noise, pollution with toxic chemicals, climate change (which may affect how the population of krill), and from fishing.
How can we prevent blue whales from extinction?
Adopt. Adopt a whale and help us protect these amazing creatures.
Join. You can join our team and help us save whales and dolphins.
Donate. Your gifts help us take action for whales and dolphins.
Shop. Support WDC by shopping for yourself or a friend.
Hope this helps. Thanks!
Which of the following is NOT true about adaptation? A. Adaptation helps organisms survive in their environment. B. Adaptation can be a physical change in the organism.
C. Adaptation will always be the same regardless of the environment.
D. Adaptation can lead to evolution over many generations.
Answer:
c
Explanation:
Adaptation is a heritable behavioral, morphological, or physiological trait that has emerged through natural selection to preserve or improve an organism's fitness. Therefore, option (C) is correct.
What is adaptation?The term "adaptation" refers to a behavioral, morphological, or physiological trait that is inherited and has developed as a result of natural selection to maintain or improve an organism's fitness in response to a specific set of environmental conditions. Adaptation can be thought of as a heritable trait.
One useful illustration is the capacity to conceal oneself. Camouflage is an adaptation that helps an organism blend in with its surroundings so that it is not obvious to other organisms in those same circumstances. The organism is also able to protect itself from the hostile environment thanks to its adaptations.
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For every turn of the citric acid cycle, one molecule of _____________________, four molecules of ___________________________, and one ___________________________molecule are produced.
Answer:
For every turn of the citric acid cycle, one molecule of ATP, four molecules of NADH and one FADH₂ molecule is produced.
Explanation:
"For each turn of the cycle, a molecule equivalent to ATP is produced, and 5 pairs of high-energy electrons are captured by 5 carrier molecules: 4 NADH molecules and 1 FADH2. FAD and FADH2 are molecules similar to NAD+ and NADH, respectively"
Hope this helps
What characteristics best describe the process of photosysthesis
Answer:
"Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds."
Explanation:
what activities are ways to reduce the negative impacts humans have on earths resources? select two options.
eroding river banks
moving to urban settings
monitoring air quality
burning fossil fuels
building marine refuges
Answer:
monitoring air quality and building marine refuges
The activities that reduces the negative impacts humans have on earths resources are :
Monitoring air quality ( C ) Building marine ( E )Human activitiesActivities of humans leave both negtive and positive effects on the earth and but to reduce the negtive impacts of humans on earth certain activities such as monitoring air quality which helps to regulate air pollution and also building marine refuges are some the positive human activity that can help reduce the negtive effects of certain human activity.
Hence we can conclude that The activities that reduces the negtive impacts humans have on earths resources are : Monitoring air quality and Building marine.
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What is biogeographic isolation
Answer:the separation of members of the same species, a group of organisms that breed and produce offspring that can breed.
Explanation:
1) The interaction of which two systems provides the molecules needed for the
metabolic activity that takes place at ribosomes?
Answer:
digestive and circulatory
What tissue makes up a bone?
Answer:
Bone tissue is a mineralized tissue of two types, cortical bone and callousness bone
Explanation:
Other types of tissue found in bones include bone marrow, endometrium, peritoneum, nerves, blood vessels and cartilage.
100 POINTS: how is the coronavirus a social issue and who does it affect?
Answer:
It is a social issue because it's causing alot of unemployment and many people are relying on help from the government. As well as to how people do not like being home all the time its the safest place to be rather than possibly contracting the virus.
Explanation:
Hope that helps!
I WILL MARK BRAINLIST
Fill in the blanks with the correct words.
The movement of molecules from an area of low concentration to an area of high concentration occurs in
transport.
In
transport, molecules move from an area of high concentration to an area of low concentration.
Answer:
The movement of molecules from an area of low concentration to an area of high concentration occurs in active transport.
In passive transport, molecules move from an area of high concentration to an area of low concentration.
Explanation:
when does gametogenesis occur
Answer: In females, most of gametogenesis occurs during embryonic development. Primordial germ cells migrate into the ovaries at week 4 of development and differentiate into oogonia (46,2N).
Explanation:
Answer:
.En la mujer, la producción de gametos u ovogénesis se inicia al tercer mes del desarrollo fetal y se suspende en profase I de leptoteno, esta meiosis se reinicia entre los 10 y 12 años de edad, que es cuando presentan primer ciclo menstrual.
Explanation:
_refers to a balanced ecosystem
Which list consists of four factors that play a role in determining climate?
A. altitude, insolation, ocean currents, soil type
B. insolation, mountain ranges, ocean currents, soil type
C. insolation, latitude, mean June temperature, ocean currents
D. global winds, insolation, large bodies of water, ocean currents
Answer:
Global winds, insolation, insolation, large bodies of water, ocean currents.
Explanation:
Climate is the atmospheric condition of a place at a time such as temperature and rainfall . global winds, insolation, large bodies of water, ocean currents consist of four factors that play a role in determining climate. Insolation or solar energy determine climate of an area. Rays of sunlight hit the Earth and area near the equator which in one way or the order increase the temperature of an area.
lakes, oceans, and streams play a vital role in climate processes by serving as reservoirs for water, which can evaporate from the surface to fall later as rain or snow.
Bodies of water also reduce changes in temperature of surronding land areas .They make sure high temperature Don't get high and low temperature Don't reduce to low.
Ocean currents which move water from one place to another affect the climate of a place.
Answer:
d. global winds, insolation, large bodies of water, ocean currents
Explanation:
The jet stream occurs in the mesosphere. true or false
Answer:
False
Explanation:
in organisms that reproduce sexually, through what type of cells are mutations passed to offspring
Answer: reproductive cells .
Explanation: (sperm or eggs)