Answer:
That is, the differential survival and reproduction of organisms in a population that have an advantageous heritable trait leads to an increase in the proportion of individuals in future generations that have the trait and to a decrease in the proportion of individuals that do not
function of centriole is
Answer:
To help with cell division.
Explanation:
The centrioles form spindle fibers during mitosis and meiosis. The spindle fibers separate the chromosomes during cell division.
Answer:
The function of the centriole is to form spindle fibres in animal cells and move to opposite poles during cell division
Hope this helps
what do we call the chemical substances necessary for an organism to sustain life A. energies B. nutrients C. supplements
Answer:
B. nutrients
Explanation:
Nutrients are chemicals present in all living things on Earth. They are essential for the lives of humans, plants, animals ,and all other species. Nutrients help remove food that provides energy to the species. Carbon, hydrogen and oxygen are the most essential nutrients which they need.
Hence, option B is correct as it is necessary for sustain the life of an organism
Answer: B.
Explanation: Nutrients are chemical substances found in every living thing on Earth. They are necessary to the lives of people, plants, animals, and all other organisms. Nutrients help break down food to give organisms energy. The most important nutrients they need are carbon, hydrogen, and oxygen.
The theory of plate tectonics helps to explain _____.
True or False? Circle the correct answer for each statement. If a statement is false, explain why under the
statement
1. The type of chemical bond within the water molecule is the ionic bond. True False
Answer:
False
Explanation:
The water molecule is not an ionic bond due to it being made out of covalent bonds.
The lock-and-key analogy is used to describe the Group of answer choices binding of G proteins to transmitter receptors. activation of the nerve impulse. action of transmitter molecules on receptor proteins. degradation of transmitter molecules by enzymes.
Answer:
The correct option is the degradation of the transmitter molecules by enzymes.
Explanation:
The key lock system is a type of enzymatic catalysis / anabolization, and is so called because the enzyme that reacts with its substrate is in the male-female or key lock format.
Enzymes can also react by other mechanisms, but this is known for the perfect fit of the substrate with the binding site, since one represents the negative of the other, once joined and the reaction started, the active site is occupied and the enzyme is not reacts with another substrate simultaneously to that one.
Why does the troposphere contain the most water vapor out of the atmosphere? Everywhere says that it does but why?
Answer:
The troposphere does contain the most water vapor out of the atmosphere
Explanation:
The troposphere does contain the most water vapor out of the atmosphere because the troposphere is where all the weather conditions like: rain cloudy, hurricanes take place and all the weather conditions have water vapor because most of the weather conditions have clouds, or water vapor.
Because plants release water during the transpiration process, the troposphere contains the most water vapour in the atmosphere. This remains here, and as a result rain forms.
What is the atmosphere?
The atmosphere is the earth's outer layer, which is further subdivided into troposphere, stratosphere, mesosphere, and so on. The troposphere is the part of the atmosphere closest to the earth, and it is where rain and clouds form.
The upper stratosphere is less disturbed and more stable than the troposphere, as less wind disturbance is seen here. In this layer, planes and jets are travelling. It has a special layer called the "ozone layer" that protects the earth from the UV light of the sun. The mesosphere is the coolest of these atmosphere layers.
The troposphere has disturbances such as those caused by winds; clouds form here. There are various gases, such as oxygen, carbon dioxide, nitrogen, water vapor, and so on. The water vapour is the result of transpiration from plants and evaporation from water bodies.
Hence, this troposphere layer contains water, because the water above it cannot remain liquid due to the increased temperature of the stratosphere.
Learn more about the atmosphere, here.
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How old was Evelyn when she went to the Royal Academy of Music
Answer:
she was 17 years old
Explanation:
googled it
Which of the following serve as antibodies? carbohydrates lipids proteins nucleic acids
Answer:
Protein
Explanation:
Out of the four macromolecules, proteins are the ones that serve as antibodies.
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Answer:
Proteins for sure.
_____ are surface appendages that allow a bacterium to stick to a surface. _____ are surface appendages that allow a bacterium to stick to a surface. Fimbriae Mitochondria Ribosomes Cell walls Flagella
Answer:
Fimbriae
Explanation:
Fimbriae are hollow, hairlike structures made of protein, which allow bacteria to attach to other cells.
Fimbriae are surface appendages that allow a bacterium to stick to a surface. The correct option is a.
What are Fimbriae?At the surface of bacterial cells are long filamentous polymeric protein structures called fimbriae. They make it possible for the bacteria to attach to particular receptor structures and colonize particular surfaces.
They are 3–10 nanometer thick hair-like extensions that surround bacteria and number 1,000 on average. When compared to flagella, they are smaller. Although pilli and fimbriae are frequently used interchangeably, pilli are longer. Both gram-positive and gram-negative bacteria contain them.
As a result, they are so tiny that an electron microscope is required to see them. The fimbriae's adhesin molecules play a key role in the adhesiveness of the structures.
Therefore, the correct option is a. Fimbriae.
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HEY UJALA CAN U PLEASE HELP ME IN THIS QUESTION HOW HORMONES ARE INVOLVED IN OSMOREGULATION OF KIDNEYS
Answer:
Hormones are involved in the osmoregulation of kidneys by regulating the levels of water.
Such as if the water level is excess in the body fluids, the hormone will help the kidneys to filter as much water as they can from the glomerular capillaries. So, As a result dilute urine is formed.
Now, If the water level is very low in the body fluids, the hormone will help the kidneys to absorb most water and filter less water from the glomerular capillaries. As a result the urine formed is concentrated.
In Chapter 3, "Coordination and Control" You will come to know that the hormone is ADH (Anti-diuretic hormone) called vasopressin.
Answer:
Kidney plays a very important role in Osmoregulation by regulating the amount of water reabsorbed.Anti Diuretic harmone produced by pituitary gland plays a key role.Kidney regulate osmotic pressure of a mammals blood through extensive filtration and purification in a process known as osmoregulation.
The loop of Henle establishes a salt gradient in the medulla, anti diuretic harmine regulates the level of water reabsorption in the collecting duct.
Harmones like ADH helps in reabsorption of water.
Hope this helps...
Good luck on your assignment...
Please help me with this question it is difficult for me!! Explain, with examples, the impact of the continual re-use of materials in nature. NB: the role of decomposers in the Carbon cycle, Nitrogen cycle- nutrient cycling and the Water cycle.
Answer:
Explanation:
I am confused what the question is..?
All materials within ecosystems can be recycled.
Answer:
All the things expect enegry are recycled.
Explanation:
When the decomposer decomposes the organic substances than they are taken by plants in the form of nutrition and minerals. Likewise, the food prepared by the plants are taken by animals and the nutrition is recycled. The oxygen and carbon dioxide cycle is also recycled. When the animals releases carbon then the plants take it and gives out the oxygen. In this way oxygen and carbon dioxide cycle is also maintained in nature.But incase of enegry it cannot be recycled but frequently transfered from one form to another form.
hope it helps..
Which is one characteristic of consumers? They create all usable food energy. They make their own food. They may eat plants and animals. They obtain their energy from the Sun.
Answer:
they may eat plants and animals
Explanation:
plants- herbivore meat/animals- carnivore both- omnivore
what is the largest organ in human body?
Answer:
The liver
Explanation:
The liver is the largest internal organ in the body, which is about 3.5 pounds! Then, followed by the brain, lungs, heart, and kidneys.
Hope this helps you out! : )
Crop rotation is a method of soil conservation because _______. a. the land produces more than one type of crop b. it requires plowing and tilling that reduces soil compaction c. it does not use the same parcel of land in sequential seasons d. it avoids the depletion of soil nutrients
Answer:
d. It avoids the depletion of soil nutrients.
Explanation:
Crop rotation is the process of planting different crops in the same area of land in rotation. This allows the breathing of the soil as well as the retention of nutrients in the soil.
Crop rotation is one form of conserving soil as it helps in saving the nutrients of the soil from getting depleted. As different crops require different nutrients, the change in crop plantation between different types of crops help in maintaining the fertility of the land. This way, when crops are planted in rotation, there is also the rotation of the different nutrients required for the different crops planted, thus allowing the cycle of nutrient change to take place.
Thus, the correct answer is option d.
I NEED AN ANSWER. PLEASE!!!.
What are autotrophs and heterotrophs.
Answer:
Autorophs are living organisms that make their food through photosynthesis while heterotrophs are living organisms that can not make their own food, so they must eat it.
Explanation:
Hope it helps!
Answer: Autotrophs make their own food (plants some protists and some bacteria) and heterotrophs cannot make their own food they must obtain energy from outside sources (animals fungi and some bacteria)
Explanation:
An element with symbol 'y' is represented as 30 Y 65 . what is the atomic number and mass number of this element? Name the element 'Y'.
Answer:
Your atomic mass is 65 and atomic number 30. With this information, you'll find that this element happens to be Zinc, with 30 protons, 30 electrons and 35 neutrons on a stable level. There is also 4 energy levels. Hopefully this helps. Good Luck!
Please help me!!!!!!!!!!!
Answer:
The likelihood that a particular event will occur.
Explanation:
Answer:
The likelihood that a particular event will occur .
Explanation:
This means how sure you are that something will happen
Which of the following shows steps that happen to the chromosomes in Meiosis in the correct order?
Answer:
Since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase.
how is meiosis similar from mitosis
A. both occur in somatic cells
B.both produce two daughter cells
C. both are forms of cell reproduction
D. both involve two divisions of a cell
Answer:
C
Explanation:
Both helo with cell division or reproduction of cells.
Hope this helps!
A diagnosis of Hodgkin's disease is suspected in a 12-year-old child. Several diagnostic studies are performed to determine the presence of this disease. Which diagnostic test result will confirm the diagnosis of Hodgkin's disease
Answer:
The analyzes that determine the accurate diagnosis of hodking disease are blood or complete laboratory analysis, computed tomography of lymphadenopathy, puncture and histopathological analysis of diseased lymph nodes, scintigraphy to check the areas of greatest metabolism in the body for lymphadenopathy. not detected
Explanation:
Hodking disease consists of lymphatic lymph nodes, these increase in volume and is due to the malignant neoplasm that they suffer within them.
The histopathological analysis that is done in the laboratory is what gives us the utmost certainty of this pathology.
Hodking disease consists of lymphatic lymph nodes, these increase in volume and is due to the malignant neoplasm that they suffer within them.
The histopathological analysis that is done in the laboratory is what gives us the utmost certainty of this pathology. In the histopathology cells called Sternberg cells usually appear.
*Environmental science 11. What’s the main difference between the anthropocentric and the holistic approach to nature? The anthropocentric approach is a subset of the holistic approach. The anthropocentric view places humanity at the center of the universe and considers nature as something to use (and abuse). The holistic approach sees humanity as part of nature and subject to its natural laws The anthropocentric point of view was only commonplace in Medieval Europe because of its religious implications. A holistic point of view is less theistic The anthropocentric view places humanity at the same level as nature while the holistic view places as inferior 12. According to a study by the World bank, what’s the relationship between a country’s economic improvement and environment indicators There’s no relationship between a country’s economic development All environment indicators improve as the country gets richer. All environment indicators get worse as the country gets richer. Some environment indicators improve right away, some get worse then improve, and get worse and don’t improve 13. In high-elevation forests in Pennsylvania, ecologists have noticed a serious decline in certain tree species. Some scientists propose that increased soil acidity might be the cause. What’s this phenomenon Decreases in pH cause by climate change Mercury contamination caused by coal-fired power plants Acid rain, which is caused by SO2 from combustion mixed with atmospheric water vapor Ozone depletion 14. What’s today’s most pressing environmental issue? Pesticide contamination Climate change Flooding Food shortage 15. What caused the environmental situation in Lake Naivasha, Kenya to improve? The environment became so polluted that companies could no longer grw fresh flowers There was a rebellion in the villages, and kenya decided to oust the flower farms Lake naivasha adjusted to the increased nutrients in the water, and new species now thrive Consumers in Europe stopped buying fresh-cut flowers in supermarkets, so companies had to clean up their practices 16. Carbon trading is a mechanism by which companies may purchase the right to pollute over a set period, up to a certain quota, established by the government. In the market-based approach, what’s this tool called? Tax break Market-based quota Property rights instrument Market-based instrument 17. Which of these Best describes the reason for the very rapid growth of the human population in more modern times? The absence of limiting factors Improved health care, hygiene, and technology An increase of Earth’s natural resources The rise in income 18. Residents of Flint, Michigan started organizing when government officials and agencies ignored their complaints that their drinking water was making them sick. What’s this organizing an example of? A grassroots movement A legal settlement An NGO-led effort An EIS 19. Which of the following statements is Not based on climate change denial Climate change is exaggerated by scientists so they can get more grants Climate change is part of a natural cycle, and human have little to do with it Climate change is a hoax The climate is changing rapidly, but it would be expensive to fix 20. Who was Rachel Carson? She advocated for the ban of CFCs to combat the increase in size of the ozone layers She was a US government ecologist who worked to protect bird populations She fought a legal battle with environment scientists to prove they were wrong about the effects of DDT She wrote Silent spring, a book that described the environmental impacts of DDT
Answer:
I think it's Carbon Credit Network
Explanation: im dont sure but I think it's Carbon Credit Network
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Which of the following is not an Sl unit?
A. meter
B. Kelvin
C. pound
D. second
Answer:
pound please
hope it helps
What is produced at divergent plate boundaries?
a. Mountains
b. Oceans
c. New seafloor
d. Earthquakes
Explanation:
I think it's D. Earthquakes
Hope this helps...
Answer: D:IS YOUR ANSWERRRRRRRRRRRRRR
I almost took my life once too so I know what you're feeling.
Explanation:
Which statement is an example of a scientific theory? A. The Earth is the third planet from the Sun and has one moon, which orbits the Earth. B. Hummingbirds do not like the color white because they visit other colored flowers more often. C. All living organisms are composed of one or more cells, which came from pre-existing cells. D. The amount that caffeine affects a person's heart rate differs based on the person's age.
Answer:
D: The amount that caffeine affects a person's heart rate differs based on the person's age.
Which structures produce the male gametes? A. testes B.penis C.scrotum D.vas deferens WHOEVER ANSWERS THIS CORRECTLY ILL MARK YOU AS BRAINLIEST
Answer:
the answer is a
Explanation:
i learned this a week ago
Answer:
The testes produces the male gametes
Explanation:
Yes, the testes produces the male gametes. The scrotum is the sac where it is located, while the vas deferens is a pathway where the sperm or urine passes and the penis releases the sperm
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What is a carcinogen?
O A. A chemical that is used to put out fires
O B. A chemical that improves the quality of gasoline
C. A chemical that is used in baking
O D. A chemical that causes cancer
DUBMI
Answer:
The answer is option D.A chemical that causes cancer
Hope this helps you.
Answer: D.
Explanation:
a chemical that causes cancer.
Which viral replication cycle is represented in part A of this diagram?
O A. Dormant cycle
OB. Replication cycle
C. Lysogenic cycle
O D. Lytic cycle
Answer:
The correct answer is - option D. lytic cycle.
Explanation:
The lytic cycle is one of the two viral reproduction cycle. Generally, it is the major reproduction cycle. In this cycle reproduction of the viruses takes place inside the host cell and produce more viruses. In the production of the more viruses the host cell and it''s destruction takes place in the end. The 5 steps that takes place are as follows:
1- attachment - viruses attach to the cell.
2-penetration- only nucleic acid or genetic material is injected into the host cell through the hole made by the tail fibers and enzymes.
3- synthesis - replication of viral nucleic acid and protein and envelope.
4- assembly - assembling of the new viruses formed.
5- release.
Thus, the correct answer is - option D.
Answer:
d
Explanation:
it’s right
help plz im annoyed and im about to cry cuz i keep getting 60% (ill mark you brainylist jus plz help)
Where are blood cells produced?
A) tendons
B) ligaments
C) bone marrow
D) skeletal muscles
What is the funcrion of ligaments?
A.) to connect bone to bone
B.) to connect muscles to bone
C.) to connect muscles to muscles
How many bones are there in the human body?
A.) 26
B.) 206
C.) 2060
D.) 20,600
Muscles are structures in the muscular system. Which level of organization describes muscles?
A.) cells
B.) organs
C.) tissues
D.) organ system
Bones are ___ formed by hard, dense bone tissue, and the tissue is made up of bone ___
A.) organs, cells
B.) cells, organs
C.) organ, system, cells
D.) cells, organ system
Answer:
Bone marrowTo connect muscle to bone206SystemOrgans, cellsExplanation:
Bone marrow is a part of a bone where new blood cells are produced.
Ligament is a connective tissue that connects bone to muscle.
Humans are born with about 360 bones but the bones fuse as the person gets older and it becomes 206.
Muscular System.
Bones are organs. Because they are made of different tissues but the same function.
Tissue is a level of the organization that is made up of cells with the same function.
Hope this helps ❤❤❤.
Diverse groups are _____ able to provide for all of their members’ needs and tend to have _____ integration and communication than do homogenous groups. A. more, more B. more, less C. less, more D. less, less
Answer: Option A.
More more
Explanation:
Diverse groups are more able to provide for all of their members needs and tend to have more integration and communication than homogenous groups because they are made of of people who are different from each other and also have distinct characteristics. This is because they are more productive and perform better because they have expertise range of experienceand working methods that can boost problem-solving capacity and lead to greater productivity. They tend to have more integration and communication than homogeneous group because they bring broader ideas and new perspectives to the table and many members will be partaker of the community. This group of people are different from each other and have different perspectives compare to homogeneous group. They provide for their members because of abundance of resources provided .