What term refers to the layer of permanently frozen ground below the surface of tundra?

Answers

Answer 1
This term is called permafrost. Large areas of permafrost, which haven't thawed in millennia, are now thawing seasonally as a result of climate change. 
Answer 2

Answer:

Permafrost

Explanation:


Related Questions

Was 2006 an El Niño year? Why or why not?

Answers

Yes through my research this seems to be dealing with weather, and its 2006 because El Nino occurred and happened in 2006 so its classified under the year 2006.
Yes, 2006-2007 was an El Niño year. During an El Niño year, the equatorial westerly winds diminish and cause high temperatures.

4. Enzymes are (choose one) a. Lipids c. Proteins b. Carbohydrates d. Nucleic acids

Answers

enzymes are a type of protein
Enzymes are proteins

What is the usual mode of stimulus transfer in neuron-to-neuron interactions?

Answers

The usual mode of stimulus transfer in neuron- to -neuron interactions is CHEMICAL SIGNALLING. One cell interacts or communicates with another cell through cell signally where signal molecules such as hormones carry the information. Neurotransmitters are the chemicals that transfer the signals from one neurons to another.

What substance is added during hydrolysis in order to break down food macromolecules? carbon dioxide amino acid oxygen water?

Answers

The answer should be water

Answer: Water

Explanation:

Hydrolysis is the process by which bond between the macromolecules splits by the addition of water. This process is catalysed is enzymes.

Most of the macromolecules like carbohydrates, protein, fat inside the human body is broken down by the help of water only.

WE can say that polymer is broken into monomer by the help of water.

Thus, the correct answer is Water.

(01.06 mc) you are a stem cell therapist who is researching a stem cell therapy to help broken bones heal faster. this therapy involves injecting stem cells into broken bones. which type of cells would you likely be injecting? osteoblasts osteoclasts osteocytes osteogenic cells

Answers

The answer is:  [A]:  "osteoblasts" .
_____________________________________________________
The answer would be Osteoblasts.

the rusty crayfish is harmful to Native species of crayfish because it clear cut the bottom of waterways leaving native species without a food supply

T or F

Answers

I think its true hope this helps.

Answer: True

Explanation:

An invasive species is the one which competes with the members of the native species for resources when introduced to a new ecosystem.

According to the given situation, a rusty crayfish is harmful to the native species of crayfish. This tells us that rusty crayfish is invasive for native species of crayfish. Thus the native species left without food as there exists competition for food.

What are the neurons called that pick up sensations from receptors and carry them into the brain?

Answers

Neurons that pick up sensations from receptors and carry them into the brain are sensory neurons.

Air trapped in the fur of the caribou’s coat functions as _____. insect repellant camouflage insulation waterproofing

Answers

Air trapped in the fur of the caribou's coat functions as Insulation.

Answer: Insulation.

Explanation: Insulation can be defined as the protection against the changing or different environment. Insulation is usually seen the animals living in polar regions.

The fur helps in sustaining the internal heat of the body to remain inside the body without being lost outside due to the colder environment outside.

The Eskimos experience one of the world's extreme winter climates and in this kind of a situation caribou's coat provides insulation from cold.

Identify two ways in which environmental resources are important to human health.

Answers

keep us alive
keep us moving

Diffusion is the movement of molecules from regions of ____________ concentrations to regions of ____________ concentration until ____________ is reached.

Answers

Diffusion is the movement of molecules from regions of greater concentrations to regions of lesser concentrations until equilibrium is reached.

Answer:

The answer is 1)High 2)Low 3)Balanced.

Explanation:

Diffusion is an irreversible physical process, in which material particles are introduced into a medium in which it was initially absent. Diffusion is the process in which atoms or molecules move from a region of high concentration to an area of low concentration. In most cases, diffusion occurs in gases and liquids. During diffusion, the movement of matter continues until there is a balanced distribution.

which energy molecule is produced as a result of cellular respiration?
A) ATP
B) RNA
C) DNA
D) ADP

Answers

A. ATP

during cellular respiration, glucose is broken down in the process of oxygen to produce carbon dioxide and water. The energy released during the reaction is captured by the energy-carrying molecule ATP.

Abuse of _______, a pain-relieving prescription medication, is increasing among adolescents and young adults.

Answers

Abuse of ANALGESIC, a pain relieving prescription medication is increasing among adolescents and young adults.
Analgesic drugs are drugs that are used to achieve analgesia, that is, relief from pain. Analgesic drugs in various ways and influence both the central nervous system and the peripheral nervous system. 

When the urinary bladder becomes stretched, there is an increase in the frequency of action potentials traveling from..?

Answers

the urinary bladder to the sacral region.

List the 3 basic steps/pathways to all of the sensory systems

Answers

The three basic steps that are common to all sensory systems are as follows: 
1. They all receive sensory stimulation usually by means of specialized receptor cells.
2. They all transform the stimulations received into neural impulses.
3. They all transport the neural impulses to the appropriate section of the brain.

At which part of its orbit is the planet traveling at the greatest speed?

A
B
C
D

Answers

The answer would be D

Answer:

d

Explanation:

To prevent back injury, the nurse should instruct the client to

Answers

The nurse should instruct the client to not lift heavy objects, if lifting something he should have bend the body with his knees, correct his posture (poor posture causes pressure and can cause degenerated discs to become more painful), exercise the back muscles ( to provide support).



If a baby boy inherits a recessive allele from his mother, in which of the following circumstances would he most likely exhibit that recessive trait? (2 points)

a.The allele is X-linked.

b.His mother's father also exhibited the trait.

c.The allele skips a generation.

d.He inherited the dominant trait from his father.

Answers

a.The allele is X-linked

Women have two X chromosomes while men have one X and one Y.
In the case of a recessive mutation on the X chromosome passes from the mother to the baby boy, the boy will express the recessive allele. Even though it's recessive, and in allosomes both alleles need to be present, when it comes to this situation the boy only has one X chromosome so it's indifferent if the gene is recessive or dominant.

Answer:

The allele us X-linked

Explanation:

Long, saturated fatty acid tails _____ lipid mobility and _____ membrane fluidity. enhance; increase reduce; increase enhance; maintain maintain; decrease reduce; decrease

Answers

reduce lipid mobility
decrease membrane fluidity

When fatty acid tails are saturated, it means that their conformation is perfectly straight becoming easy to compact more and more fatty acids, as they fit perfectly together, and therefore reducing lipid mobility. In turn, if lipid mobility is reduced, the membrane fluidity is decreased because the lipids are too "stiff" together.

Which of these is an example of recombination of atoms to form newer molecules?
Molding a wire of gold
Hammering a piece of iron
Tarnishing of a silver coin
Rolling of a sheet of aluminum

Answers

The correct option is C.
The recombination of atoms to form newer molecules is called chemical change. Tarnishing is a chemical change that occur when a metal lose luster as a result of exposure to moisture and water which results in a thing layer of corrosion which forms over the metal.

Answer: Option (c) is the correct answer.

Explanation:

When there is recombination of atoms to form newer molecules then it is called a chemical change.

For example, [tex]A-B + C-D \rightarrow A-C + B-D[/tex] is a chemical change.

Tarnishing of a silver coin is a chemical change which occurs when silver reacts with moisture in the air as a result silver loses its luster.

Thus, we can conclude that out of the given options tarnishing of a silver coin is an example of recombination of atoms to form newer molecules.

The physical folder for each veterinary patient and the total body of information that comprises each animal's health history is called the

Answers

The physical folder for each veterinary patient and the total body of information that comprises each animal's health history is called the medical record.

Active transport occurs in cells, for example, when the Na-K pump is at work. Any process that involves active transport most often involves the A) movement of molecules without any predictable pattern. B) movement of molecules from a lower concentration to a higher concentration. C) movement of molecules from a higher concentration to a lower concentration. Eliminate D) movement of molecules from a lower to higher concentration and then back to the point of origin.

Answers

B) the movement of molecules from a lower concentration to a higher concentration 

How do environmental factors and genetic factors affect natural selection?

Answers

Environmental and Genetic factors are both incredibly complex structures, but all will create mutations of the species. The genetic variability created by mutations will be tested by natural selection, which can and will determine which characteristics are inherited in a population over time. 

The flow of energy from an ecosystem to an organism and from one organism to another is called ______

Answers

Another is called: Energy Flow

The intestinal epithelium absorbs monosaccharides by __________

Answers

facilitated diffusion plus cotransport mechanisms

Which enzyme is responsible for the majority of the digestions of lipids?

Answers

The digestion of certain fats begins in the mouth, where short-chain lipids break down into diglycerides because of lingual lipase. The fat present in the small intestine stimulates the release of lipase from the pancreas, and bile from the liver enables the breakdown of fats into fatty acids.

Pancreatic lipase is the primary enzyme responsible for lipid digestion, working mainly in the small intestine to break down triglycerides into fatty acids and monoglycerides.

The enzyme responsible for the majority of the digestion of lipids is pancreatic lipase. It operates primarily in the small intestine, where it systematically breaks down each triglyceride molecule into two free fatty acids and a monoglyceride. This process is facilitated by bile, which is secreted by the liver and works to emulsify large globules of food lipids into smaller micelles, providing a larger surface area for the pancreatic lipase to act upon. Lipid digestion begins to some extent in the mouth with lingual lipase, but this is minor in comparison to the activity in the small intestine.

Some investigators concluded that the first organisms consisted of rna rather than dna. what is importance of this "rna world" period?

Answers

It was the bridge from simple chemistry and DNA - based cells.

In the cells of some organisms, mitosis occurs without cytokinesis. this results in ________.
a. cell cycles lacking an s phase
b. cells lacking nuclei
c. cells that are unusually small
d. cells with more than one nucleus

Answers

In the cells of some organisms, mitosis occurs without cytokinesis. this results in THE CELLs WITH MORE THAN ONE NUCLEUS. After the DNA duplication in the cell, mitosis occurs during which two chromosome sets are separated by the formation of two nuclei. Lack of mitosis would lead to lack of cytokinesis ie., cytoplasm and nuclei will not e divided and would be present in a single cell itself.
Final answer:

When mitosis occurs without cytokinesis, it leads to cells with more than one nucleus. This results from the genetic material being divided without the subsequent division of the cell's cytoplasm, possibly leading to larger, abnormal cells that can be indicative of cancer.

Explanation:

In the cells of some organisms, when mitosis occurs without cytokinesis, the resulting condition is cells with more than one nucleus. This happens because the cell divides its genetic material during mitosis but fails to complete the process by not undergoing cytokinesis, which is the division of cytoplasm to form two separate cells. This cell cycle aberration can lead to larger cells containing multiple nuclei, which is often an unwanted phenomenon that could indicate the presence of cancerous cells.

Cell cycle control is crucial for an organism's health as it ensures that cells divide correctly and maintain proper function. If this control is lost, cells may begin to divide uncontrollably, which is a characteristic of cancer, leading to the formation of tumors.

The cell cycle has two major phases: interphase, where the cell grows and the DNA is replicated, and the mitotic phase, where the cell actually divides. The mitotic phase includes karyokinesis (the division of the cell's nucleus) and usually cytokinesis. However, when cytokinesis does not occur, the result is a multinucleate cell, which has replicated DNA and might be larger in size but hasn't physically separated into two individual daughter cells.

Each primary bronchus enters a lung and branches into smaller​ ________.

Answers

branches into smaller bronchioles

Walking ____ is a good exercise choice for individuals with leg and back problems.

Answers

Is this multiple choice because there could be several answers for this

Carbohydrates, lipids, proteins and nucleic acids are considered _____________, which means they are large organic molecules.

A. Macromolecules

B. Micromolecules

C. Nanomites

D. Polar

Answers

A. Macromolecules
.
.
.

Carbohydrates, lipids, proteins and nucleic acids are considered Macromolecule which means they are large organic molecules.

Thus, A vast variety of both good and bad foods, including bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie, include carbohydrates.

They can take on various shapes as well. Starches, fibres, and sugars are the most prevalent and plentiful types.

Carbohydrate-rich foods are a crucial component of a balanced diet. The body receives glucose from carbohydrates, which is then transformed into energy for maintaining biological processes and engaging in physical activity.

Thus, Carbohydrates, lipids, proteins and nucleic acids are considered Macromolecule which means they are large organic molecules.

Learn more about Carbohydrates, refer to the link:

https://brainly.com/question/1558514

#SPJ3

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