Define permafrost in you own words!

Answers

Answer 1

Answer:

Permafrost is ground that continuously remains below 0°C for two or more years, located on land or under the ocean. Permafrost does not have to be the first layer that is on the ground. It can be from an inch to several miles deep under the Earth's surface.

Explanation:

Answer 2

Answer: pick one

try this,

Permafrost is a permanently frozen layer on or under Earth's surface. It consists of soil, gravel, and sand, usually bound together by ice. ... Permafrost covers approximately 22.8 million square kilometers (about 8.8 million square miles) in Earth's Northern Hemisphere. Frozen ground is not always the same as permafrost.

or try this,

Permafrost is soil, rock or sediment that is frozen for more than two consecutive years. In areas not overlain by ice, it exists beneath a layer of soil, rock or sediment, which freezes and thaws annually and is called the "active layer".

Explanation:

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Related Questions

Which of the following is not a function of nucleic acids during the transcription and translation processes?
O Carry genetic information from the nucleus to ribosomes
O Serves as the source of information that remains secure in the nucleus
O Carries amino acids that are bonded together to form proteins
O Forms the nuclear envelope to protect genetic material

Answers

Answer:c

Explanation: not me looking for the answers and finding you here

The principal RNA involved in protein synthesis is tRNA rather than the mRNA that is produced during transcription, which is carried from the nucleus into the cytoplasm to the ribosome. Thus, option C is correct.

What is a function of nucleic acids?

A DNA strand serves as a template for the construction of the RNA molecule during transcription. The protein synthesis process and DNA are connected by the RNA molecule.

The RNA molecule produced during transcription transmits data from the DNA to the machinery that makes proteins during translation.

Because they control the creation of proteins, nucleic acids—the primary information-carrying molecules of the cell—determine the inherited traits of every living creature.

Deoxyribonucleic acid (DNA) and ribonucleic acid are the two primary types of nucleic acids (RNA).

Therefore, carries amino acids that are bonded together to form proteins is not a function of nucleic acids.

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If the mrna is damaged, it directly interferes with the ability of a animal cell to do which of the following?

Answers

Answer:

Proteins.

Explanation:

If the mRNA is damaged, it directly interferes with the ability of producing proteins in animal cell because mRNA is responsible for carrying the protein blueprint from a cell's DNA to its ribosomes which are considered as the machines of the cell that produces proteins for the cell. These messenger RNA has the information about what type of proteins are required to produced for the cell. So if mRNA is damaged, the ribosomes are unable to produce proteins for the cell.

In the absence of oxygen, a yeast cell undergoes fermentation and uses 100 molecules of glucose. How much net ATP will be generated

Answers

Answer:

200 ATP molecules

Explanation:

Yeast is a fungus that undergoes fermentation instead of cellular respiration when there is an absence of oxygen. In the fermentation process undergone by yeast, which produces an alcohol as product (alcohol fermentation), two (2) ATP molecules are produced as net ATP.

However, if a yeast cell undergoes fermentation and uses 100 molecules of glucose, the yeast cell will generate a net ATP of 2 × 100 molecules = 200 molecules.

5. You have 5g of Al. What is its volume?

Answers

Answer:

I think its 5g

Explanation:

lots of teachers ask really easy questions and you over think it

almost a trick question

Which of these is a solution?
O mercury
O apple juice
O concrete

Answers

Mercury? Maybe??????
Mercury is a solution the rest are mixtures

Mildred collects a sample of fossilized plant material. She takes it back to her lab to run some tests on it. Mildred is able to measure the amount of carbon-14 in her sample and compare this to the amount of carbon-12 in it. She uses this information to calculate that the fossil is 4,500 years old.

Answers

Answer:

The process that Mildred used is known as Radiocarbon dating

Note: The question is incomplete. The complete question is given below:

Mildred collects a sample of fossilized plant material. She takes it back to her lab to run some tests on it. Mildred is able to measure the amount of carbon-14 in her sample and compare this to the amount of carbon-12 in it. She uses this information to calculate that the fossil is 4,500 year old. The process that Mildred used is known as _______

Radiocarbon dating

Faulting

Indexing

Superposition

Explanation:

Radiocarbon dating is a process of determining the age estimates of various objects and materials using the radioactive properties of an isotope of carbon, carbon-14.

Radiocarbon dating uses the ratio of two isotopes of carbon, carbon-12 and carbon-14 present in materials which contains carbon to determine their age.

There is a fairly constant ratio of carbon-12 and carbon-14 in living organisms. However, at death, due to the decay of carbon-14 to carbon-12, the ratio begins to change. Since the rate of decay of carbon-14 is fairly constant, a property known as half-life, the time it has taken for carbon-14 to decay to carbon-12 can be calculated. This calculated time will givee the age of the fossilised material.

PLEASE HELP EHHHHHH );

Answers

Answer:

1

Explanation:

Answer:

The answers are 1 and 3.

Explanation:

Viruses are tiny particles, smaller than prokaryotic cells. Viruses are not cells and cannot replicate without help, but they have nucleic acids and can evolve.

Hope that helps and please give me brianliest!!

Helppppp will mark brainliest

Answers

Answer:

the mixture is a COLLOID and can best be separated by EVAPORATION

not 100% sure the second part is correct... hope it is and i hope i helped!   :)

What are 5 factors that decrease populations (explain each or tell how that factor causes a decrease in a population).

Answers

Answer:

Morality and Emigration

Explanation:

Mortality and emigration decrease the population. Thus, the size of any population is the result of the relationships among these rates. Natality, mortality, immigration, and emigration rates apply to every population, including the human population. The sum of these rates makes up the growth rate of a population.

1) Agricultural Change:
agricultural changes have been massive over the past 400 years. Many of these agricultural changes even at a low level free up workers from the farms. This allows industrialisation which needs lots of workers and tends to promote high birth rates. The more regular supply of food from advanced farming also promotes birth rates, as people are sure they can feed their children, and reduces famine deaths.

2) Education:
Education plays a vital role in determining the levels of both birth and death rates in a country and hence the level of population growth. As education levels increase people tend to have fewer children so that they can focus their resources in improving the life chances of those few children.

3) Emancipation of women:
In many rich countries women have become over time free to work when they want within their life. This is not the case in all countries in the world where many women are stuck in gender specific unpaid work such as maintaining a household and subsistence farming plots. Women are much more likely now to go to university and work for a few years before having their first child. This can result in fewer children being born per woman as fertility declines with age for women.

4) Urbanization:
It has a significant impact upon population growth because it can impact upon the birth and death rates of a country. As a country becomes increasingly urbanised the birth rate tends to rise and death rates tend to fall.

5) Death rates:
Often death rates are reduced before a slowdown in birth rates, causing a boom in the population size at a certain point in a country’s economic development. Death rates fall and life expectancy increased.

i hope i could help u!! xx

Which of these are a ring shaped lipid?
- Amino acid
- Fat
- Steroid
- Phospholipid
- Glucose

Answers

Answer:Steroids like cholesterol are lipids and have a ring structure

Explanation:

Answer: phospholipid

Explanation:

Which of the following provides evidence to support the continental drift theory?

Mapping of the ocean floor using sonar shows plates moving apart
Shape of continents look like puzzle pieces that can fit into one another
Spreading apart of the seafloor at the divergent boundary of the mid-ocean ridge
Symmetrical pattern of magnetic stripes in the crust on both sides of the mid-ocean ridge

Answers

Answer:

shapes of the continents look like puzzle pieces that can fit into one another

Answer:

A

Explanation:

What is the function of Fat cells

Answers

they are specialized to store energy.

giving brainliest!
How would an organism most likely respond to extremely cold temperatures? (4 points)

A. Blood vessels would constrict to reduce heat loss through negative feedback.
B. Blood vessels would dilate to transfer heat to more areas of the body through positive feedback.
C. Cold receptors would signal the body to retain heat through positive feedback.
D. As the organism uses energy, body temperature would decrease through negative feedback.

Answers

Explanation:

the answer is A..........

An organism most likely would respond to an extremely cold temperature as the blood vessels would constrict to reduce the heat loss through the negative feedback. Thus, the correct option is A.

How does an organism adapt to cold temperature?

Adaptations are the changes in the body of a living organism which help them to survive better in a particular set of environmental condition such as hot temperature, cold temperature, etc.

In cold temperature, Shivering is an adaptation in which the nerve impulses are sent by the hypothalamus of the brain to the skeletal muscles to bring about rapid contractions which generate heat and this helps the body in staying warm. Shivering therefore helps an organism in raising the body temperature. Increase in the metabolic rate, the liver produces extra amount of heat in order to raise the temperature of the body.

An organism most likely respond to cold temperature as the blood vessels constrict to reduce the heat loss through negative feedback.


Therefore, the correct option is A.

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Which of the following organisms in the soil food chain does not obtain energy directly from plants?
a. bacteria
b. fungi
C. protozoa
d. nematodes

Answers

Answer:

C

Explanation:

Protozoa have been classified into three trophic categories: the photoautotrophs which harness the sun's radiant energy in the process of photosynthesis; the photoheterotrophs, which although phototrophic in energy requirements, are unable to use carbon dioxide for cell synthesis and must have organic carbon compounds

Protozoa in the soil food chain does not obtain energy directly from plants. So, the correct option is C.

Who are Protozoa?

Protozoa is defined as a group of single-celled eukaryotes, which is either free-living or parasitic, that feed on other microorganisms or on organic matter such as organic tissues and debris.

Protozoa are classified into two trophic categories:

Photoautotrophs that harness the Sun's radiant energy in the process of photosynthesisPhotoheterotrophs which although phototrophic in energy requirements, are unable to use carbon dioxide for cell synthesis and must be organic carbon compounds.

Thus, Protozoa in the soil food chain does not obtain energy directly from plants. So, the correct option is C.

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ill give you a brainliest if it is right

Answers

Answer:

half

Explanation:

please mark as brainllest !!!!!!!!!!

囧   ↖(^ω^)↗  (○’ω’○)  ::>_<::

What are the components of a multicellular organism?

Answers

Answer:

Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions. In humans, cells differentiate early in development to become nerve cells, skin cells, muscle cells, blood cells, and other types of cells.

Answer:

Because the first multicellular organisms were simple, soft organisms lacking bone, shell or other hard body parts.

What happens in Interphase?
a. The cell grows & replicates DNA
b. The cell splits in two
c. The chromosomes move to the middle
d. The cell starts to cleave

Answers

Answer:

A, Cell grows and replicates DNA

Explanation:

you can also just look this one up on googlo

how does the flu impact public health

Answers

Answer:

major public health concern. Annually, flu causes illness in a substantial proportion of the U.S. population and may result in serious complications, including events leading to hospitalization and death. Influenza viruses are highly unpredictable.Mar 8, 2018

As flu spreads, large number of people may need medical care. Public health and healthcare systems can become overloaded, with elevated rates of hospitalization and deaths

Which statement describes the relationship between plants, animals, and the carbon cycle?
O Plants use carbon and release oxygen, and animals release carbon and use oxygen.
O Animals fix carbon and release oxygen, and plants release carbon and use oxygen.
Animals fix carbon through respiration, and plants fix carbon through photosynthesis.
Plants use carbon when they decompose, and animals release carbon when they decompose.

Answers

Answer:

Plants use carbon and release oxygen, and animals release carbon and use oxygen.

Explanation:

The statement that accurately describes the relationship between plants, animals, and the carbon cycle is:

Plants use carbon and release oxygen, and animals release carbon and use oxygen.

Why do plants use carbon and release oxygen?

Plants play a crucial role in the carbon cycle through the process of photosynthesis. They absorb carbon dioxide (CO2) from the atmosphere and use it, along with sunlight and water, to produce carbohydrates and release oxygen as a byproduct. This process helps to remove carbon from the atmosphere and convert it into organic compounds.

On the other hand, animals (including humans) obtain energy by consuming plants or other animals. During respiration, animals take in oxygen and release carbon dioxide as a waste product. This carbon dioxide is then released back into the atmosphere, where it can be used by plants for photosynthesis.

Therefore, plants contribute to the reduction of atmospheric carbon dioxide levels by using carbon during photosynthesis and releasing oxygen, while animals contribute to the carbon cycle by releasing carbon dioxide during respiration and utilizing oxygen.

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Which statement correctly describes glucose (C6H12O6)?
A. It is made of matter and contains twenty-four molecules.
B. It is an element made of three types of atoms.
C. It is an atom made up of carbon, hydrogen, and oxygen.
D. It is a compound made of twenty-four total atoms.

Answers

Answer:

D

Explanation:

Glucose is a compound of 6 atoms of carbon, 12 atoms of hydrogen and 6 atoms of Oxygen. It contains 24 total atoms.

Earthworms are a species of worms that lives in moist soil along with other organisms like tiny insects and bacteria. Earthworms obtain water and nutrients by eating dead plant material found in the soil. Earthworms also release waste materials that help enrich the soil.

Based on this information, which sentence is correct?

The earthworms are an environment.
The earthworms are a community.
Soil is the earthworm’s habitat.
Soil is the earthworm’s niche.

Answers

Answer:

soil is the earthworm's habitat

Explanation:

Answer:

C

Explanation:

Pls help me I don’t have much time left I’ll give brainliest

Answers

Answer:

A. 10 N right. I believe this is the right answer

A large canyon, with a large river running through the bottom, was MOST LIKELY formed by​

Answers

Answer:

the movements of rivers, tectonic activity, and erosion.

itś all in the link.

Answers

Answer:

A. Hydrogen

Explanation:

Answer:

Its A. hydrogen. fffffffffff

What is the chemical equation that shows the dehydration synthesis that creates the following
triglyceride? Two of the fatty acids are С6H12O2 and the third is C5H8O2.

Answers

2CH3-CH2-CH2-CH2-CH2-COOH + CH3-CH=CH-CH2-COOH

+ OH-CH2-CH(OH)-CH2-OH-->

Select the correct answer from each drop-down menu.
The ocean has a large impact on the climate of locations around the world. In particular,(Blank) than
have a milder climate than (blank)
answer choices for both - inland locations, locations near the coast

Answers

Answer:

First box is inland locations and the other box is locations near the coast.

Explanation:

When your inland the climate is a lot warmer than if your on the coast. If your on the coast during the day cold air from the ocean gets pushed inland near the coast then pushed back out to sea.That's why when your on the beach it's colder and windy.

Answer: The answer is The ocean has a large impact on the climate of locations around the world. In particular, inland locations have a milder climate than locations near the coast .

Explanation:

I took a test and I checked after and it was correct.

2) Compare and contrast the structure of the nucleotide that makes up DNA and the nucleotide that makes up RNA.

Answers

Answer: DNA contains the nucleotides guanine (G), cytosine (C), adenine (A), and thymine (T). RNA contains the nucleotides guanine (G), cytosine (C), uracil (U), and thymine (T). The difference between the two is that RNA contains uracil (U) rather than adenine (A).

The base pairs in DNA are adenine with thymine and guanine with cytosine. The base pairs in RNA are uracil with thymine and guanine with cytosine.

The cell theory applies to all organisms, including the five shown below. Which of the following statements describes how these organisms are an example of the cell theory? A. The organisms have cells that lack a nucleus. B. The organisms are made of one or more cells. C. The cells of the organisms undergo photosynthesis. D. The cells of the organisms are identical to each other.

Answers

Answer:

Its B

Explanation:

ALl of the cells are made from cells so that is the answer hope this helps :)

What is the next phase of the carbon cycle for the carbon source labeled B? Label A shows a collection of coal, oil and gas. Label B shows a collection of trees and vegetation. Label C shows sky and open atmosphere. Condensation Transpiration Photosynthesis Decomposition

Answers

Answer:

Hi! so the answer is decomposition.

Explanation:

If you are looking at the graph and go to the carbon source labeled B and you look at the arrow to here soil organic matter points to you can see that it points to decomposition. Also because I took the test and got it correct. I hope you can mark me as brainleast. thank you :)

The next phase of the carbon cycle for the carbon source labeled B is known as decomposition. Thus, the correct option for this question is D.

What is the Carbon cycle?

The carbon cycle may be defined as a type of biogeochemical cycle through which carbon and other derivatives prodcts of its continually travel from the atmosphere to the Earth and then back into the atmosphere.

According to the graph, the source of carbon that plants and trees get from the soil is the action of decomposers. These microorganisms significantly convert the organic form of the source into an inorganic form which is then easily consumed by the plants for their metabolic process and growth.

Therefore, the next phase of the carbon cycle for the carbon source labeled B is known as decomposition. Thus, the correct option for this question is D.

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What does it mean to translate something?
(No copy and paste answers I’ll give you Brainliest)

Answers

Answer:

When creating proteins from mRNA templates .

Explanation:

The nucleotide sequence on the RNA is translated into amino acid sequence of proteins. This is carried out by ribosomes.

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