Which of the following best explains what will happen if the blood gets too cold? A) It will have a high viscosity and increased resistance. B) It will have a low viscosity and increased resistance. C) It will cause low blood pH and decrease resistance. D) It will change the shape of blood cells and decrease resistance.

Answers

Answer 1

It will have a high viscosity and increased resistance.

Effect of temperature on blood

Low temperatures cause narrowing of blood vessels and arteries which leads to restricting blood flow and reducing oxygen to the heart.

Our heart must pump harder to circulate blood through the blood vessels which results in increasing of our blood pressure and heart rate.

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Answer 2

Answer:

The correct answer is A

Explanation:

i got it correct on my flvs exam


Related Questions

Select all of the choices that are true regarding tides...

Spring tides occur when the gravitational pull of the sun and moon are in line with each other, while neap tides occur when the gravitational pull of the sun and moon are perpendicular to each other

Tides only occur in the ocean

Tidal forces are primarily caused by the moon's gravitational pull

Larger bodies of water have more noticeable tides

Tidal forces are caused by a combination of the gravitational pull of the Moon and the Sun

Spring tides occur when the gravitational pull of the sun and moon are perpendicular to each other, while neap tides occur when the gravitational pull of the sun and moon are in line with each other

Answers

Answer:

a,b,c,e

Explanation:

please mark as brainlists

how do apocrine glands differ from other skin glands

Answers

Apocrine glands secrete in response to emotional stimuli

Chitin is all of the following EXCEPT ________. Found in insect and crustacean shells Composed of N-acetylglucosamine subunits Composed of linear fibrils like cellulose Found in plant cell walls

Answers

Answer:

Found in plant cell walls

Chitin is all of the following except it is found in the plant cell wall. So, the correct option is D.

What do you mean by Cell wall?

It is the outermost layer of a cell that can be tough, flexible, and sometimes rigid. Its function is to provide structural support and protection to the complete cell.

The Cell-wall of fungi is made up of chitin. It is composed of N-acetylglucosamine subunits. It is also composed of linear fibrils like cellulose. Mostly, found in insect and crustacean shells.

Therefore, Chitin is all of the following except it is found in the plant cell wall.

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Which part of the mitochondrion contains the proteins that carry out oxidative phosphorylation?.

Answers

Answer:

Inner Mitochondrial Membrane

Explanation:

Oxidative phosphorylation takes place in the inner mitochondrial membrane, in contrast with most of the reactions of the citric acid cycle and fatty acid oxidation, which take place in the matrix.

What is ONE way in which geologists may utilize GPS and satellite mapping?

Answers

A way through which geologists may utilize GPS and satellite mapping is to monitor the changes in the environment.

A global positioning system refers to a network of receiving devices and satellites that are used to determine the location of a particular thing on Earth.

It should be noted that a global positioning system (GPS) and satellite mapping can be used in monitoring changes in the environment. It can also be used to collect accurate field data when mapping or surveying.

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Complete the sentence by using the correct word. Studies of levels of poisons in snow were made by a(n) _____. analyzed especially accumulative environmental microscopic particles industrial geochemist exhaust toxicity

Answers

Answer:

I think it may be geochemist. sry if its wrong!

Explanation:

Which of the following is a characteristic of invertebrates

A) highly developed senses

B) backbone

C) eclosed circulatory system

D) multicellular

Answers

Answer:

A.

Explanation:

They do not have highly developer senses or surely they don't have a backbone ,every animal that have a backbone isn't an invertebrate. They don't have an enclosed circulatory system neither

Which is a homologous structure to the human forearm?
O A. The beak of a bird
OB. The skull of a raccoon
O C. The tail of a dog
O D. The leg of a horse

Answers

D the leg of horse because I took the test

The homologous structure to the forearm of humans is the leg of the horse.

What are homologous organs?

Homologous organs are organs that share similar structural organization. They are similar structurally but are different in functions. They share common ancestors. These organs are anatomically similar. As there are common ancestors, this type of evolution is known as divergent evolution.

The reason behind the divergent evolution is environmental changes, and food requirements which force them to evolve according to the requirements. The wings of bats, the forearms of humans, and the front legs of the horse are a few examples of homologous organs which underwent divergent evolution.

Homologous organs have different functions in organisms.

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Which gas is produced as a result of cellular respiration.

Answers

Answer:

Carbon dioxide

Explanation:

When is it important to drink water?

Answers

Answer:

d. All of the above

Explanation: correct

Answer:

? why did you post this

Explanation:

Three types of macromolecules are mentioned in the video that are digested and ABSORBED in the small intestine. What do they all get absorbed into first?

Lacteals

Epithelial cells

Capillaries​

Answers

Given what we know about the biology of the small intestine, we can confirm that the macromolecules are being absorbed into the "Epithelial cells".

The small intestine is in charge of absorbing the nutrients, which we require in order to survive and perform even the most basic metabolic processes, from the food that we ingest. In order to be able to perform this function, the cells in question have specialized epithelium which consists of Microvilli.

Microvilli can be thought of as membrane protrusions that serve to expand the surface area of the epithelial cells. This allows the cells to have a greater area through which to absorb nutrients such as the macromolecules mentioned.

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The type of fossil fuel made from the remains of ancient plants that lived millions of years ago is A. peat B. coal C. oil D. natural gas E. synfuel

Answers

Answer is B coal

Explanation:

thank you

Given the number of blood vessels in the retina, why do you suppose that you are not able to see them normally

Answers

Answer:

You can't see the blood vessels themselves because vision depends on a process that makes it impossible to see things that are stationary with respect to the retina. Light receptors in the retina respond only to changes in light reaching them, not to a steady image.

Have a great day! :D

What arctic animals will climate change affect? How will it affect these animals? (Site 1).

Answers

Answer: Narwhals, polar bears, and walruses will be affected the most.

Explanation:

Polar bears: The Arctic is warming about twice as fast as the global average, causing the ice that polar bears depend on to melt away. Loss of sea ice also threatens the bear's main prey, seals, which need the ice to raise their young.

Narwhals: The Narwhal's Arctic habitat is highly sensitive to climatic changes that result in increased atmospheric and ocean water temperatures. The Narwhal's annual migration from the north in summer to more southerly overwintering habitats exposes them to sea ice which is constantly expanding and receding. Because of the sea ice rapidly decreasing, narwhals could be exposed to new threats and noises.

Walruses: Habitat loss will be exacerbated for walruses by additional climate-change related factors such as ocean acidification, increased shipping and increasing development in the North, including oil and gas extraction, as well as increased disease and contaminant risks. biggest threat facing walruses is the loss of stable sea ice due to climate change. As a result of less sea ice, walrus are changing their behavior. Walruses feed on the ocean floor in the relatively shallow waters of the continental shelf, where the sea ice itself sustains a rich food web.

Which group lists the levels of genetic information in order from smallest to largest.

Answers

Smallest to Largest:

1. Nucleotide

2. Gene

3. Chromosome

4. Genome

Nucleotide, Gene, Chromosome and Genome is the levels of genetic information in order from smallest to largest.

What is Chromosome?

Chromosomes are the thread-like structure made up of protein (histones) and a single molecule of DNA which carries all the genetic information in it. It is located in nucleus.

Human have 23 pairs of chromosomes including pairs of 22 chromosomes (i.e. Autosomal Chromosomes) and 1 pair of Sex Chromosome (XX or XY).

Each pair contain two Chromosomes inheriting from the parents, half from mother and another half from the father.

Each chromosome have a point which is constricted in the middle known as Centromere, which divides chromosomes into two arms i.e. short arm “p” and long arm “q”.

Thus, Nucleotide, Gene, Chromosome and Genome is the levels of genetic information in order from smallest to largest.

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regulation of the cell cycle is dependent on cyclins and cyclin-dependent kinases. the key that allows a cell to progress beyond the restriction point is

Answers

The key that allows a cell to progress beyond the restriction point is the phosphorylation of specific proteins (for example RB) by Cdk. The cyclin-dependent kinases (CDKs) are able to phosphorylate different substrates.

Cyclins regulate the progression of the cell cycle by their interaction with cyclin-dependent kinases (Cdks).

This binding activates the Cdks, thereby converting them into functional enzymes that phosphorylate target proteins and thus regulate cell cycle progression by bypassing restriction points of the cell cycle.

CDKs can phosphorylate different substrates by transferring phosphate groups from adenosine triphosphate (ATP) to specific amino acidic residues in these substrates.

For example, CDKs phosphorylate Rb proteins and thus regulate their activity during the cell cycle.

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nterphase lasts for ________ of a cell's life.

Answers

Answer: 12-24 hours

Explanation: Interphase generally lasts at least 12 to 24 hours in mammalian tissue. During this period, the cell is constantly synthesizing RNA, producing protein and growing in size.

The segment of the nephron between the proximal and distal tubules that loops down into the medulla of the kidney and returns back to the cortex is called the

Answers

I don’t see any picture but uh I suggest you try looking back in your notes

What is the main issue with traditional classification?

Answers

Answer:

A major problem is that classifying according to overall similarities can be misleading. For example, dolphins could be mis-classifed as fishes because they have fins, but dolphins are mammals, not fishes.

Explanation:

what factors do you predict might influence the likelihood of mutations occurring in viruses?

Answers

The factors which might influence the likelihood of mutations occurring in

viruses is Spontaneous nucleic acid damage and replication inhibition.

Viruses are pathogenic micro-organisms which mutate rapidly than the

humans do. Its ability to mutate very rapidly inside the host cells is what

makes it unique and deadly.

Factors which might influence mutations in Virus include nucleic acid

damage and replication inhibition. When this occurs, the virus isn't able to

mutate thereby causing less damage to the host.

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1. Comparision of DNA sequences among single-celled organisms suggests that eukaryotes are more closely related to archaea than bacteria. The type of evidence is .

Answers

The type of evidence is indicating that eukaryotes are more closely related to archaea than bacteria is BIOINFORMATICS. This field of study compares nucleotides (DNA) sequences.

Bioinformatics is an interdisciplinary discipline that uses computational tools to interpret biological data.

This field of study (bioinformatics) compares nucleotides (DNA) sequences in order to determine the evolutionary level of shared ancestry between species.

For this purpose, bioinformatics uses the linear order of nucleotides in order to compare different species.

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____________ results from chemicals in car exhaust reacting with the sunlight.

Acid Rain

Contaminant fog

Smog

Greenhouse Effect

Answers

Answer:

smog

Explanation:

Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.

When testing the effect of light on flowering patterns of plants, temperature would be considered a?
A.independent variable
B. dependent variable
C. constant

Answers

Answer: Independent Variable

Explanation: Already explained this one in another post.

A. Independent variable

how much time does it take autumn to travel 240 meters at a speed of 80 meters per second

Answers

Using D= S*T, the answer is: 19,200

Which sentence best explains how a positive feedback loop affects climate
change?
A. As the number of plants increases, the amount of CO2 decreases.
B. High clouds have a high albedo and reflect solar energy back into
space.
C. As climate warms, CO2 increases because plants remove less of
it.
D. High precipitation results in increased plant growth, lowering CO2.

Answers

A positive feedback loop that affects climate is change as the number of plants increases, the amount of CO2 decreases.

The more trees the less CO2?

Scientists agree that one of the most effective ways to absorb part of the CO2 from the atmosphere would be to plant more trees, as they use CO2 to grow and release oxygen, this action brings benefits to the entire environment.

With this information, we can conclude that A positive feedback loop that affects climate is change as the number of plants increases, the amount of CO2 decreases.

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If I'm on an elevator that breaks loose and plummets down the shaft, can I avoid harm by jumping at the last second?

Answers

Answer:

It sounds like it would work but it wont. you need to lay down for the safest

Explanation:

Question 1 of 5
How do stories differ from scientific explanations?
A. Stories avoid presenting bias.
B. Stories are based on evidence.
C. Stories are based on imagination.
D. Stories are always negative.
SUBMIT

Answers

The answer is C. Stories are based on imagination
The answer is C stories are based

Why did the developers of deep flight give it that name?

Answers

they gave it the name because it has the ability to go down to the deepest parts of the ocean


hope this helps

Which statement explains why ammonites are a good example of an index fossil?

Answers

Answer:

Ammonites existed only in the oceans.

Explanation:

Index fossils serve as a relative dating marker for geologic time periods and the rocks formed at those times. The fossils are of species that lived for only a short while, though that could be millions of years, and were widespread on the Earth. Ammonites are good index fossils for several reasons. First, they are easily identified by their spiral shells.

The statement explains why ammonites are a good example of an index fossil

Ammonites existed only in the oceans.

What is an Index fossil?

Index fossil are plants and animals which have been preserved in rock

surfaces over a long period of time and are usually characteristic of a

particular geographical location.

Examples of Index fossils include:

Ammonites Brachiopods, Graptolites NanofossilsTrilobites

Ammonites are animal fossils which are characteristic of the marine

environment.

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objects are brought into focus on the retina by changes in the curvature and thickness of the

Answers

hi the answer is lens

Objects are brought into focus on the retina by changes in the curvature and thickness of the lens.

What is eye lens?

The lens basically directs light rays onto the retina. The lens is clear and replaceable if necessary. As we age, our lenses deteriorate, necessitating the use of reading glasses.

The lens is normally clear and is located behind the iris. The pupil directs light to the lens.

Small muscles attached to the lens can cause the lens to change shape, allowing the eyes to focus on objects that are close or far away.

Light bends (refracts) and focuses on the retina at the back of the eye as it passes through the lens.

The lens's thickness and curvature can be adjusted to focus on objects at various distances and ensure that the image is as clear as possible (this process is known as accommodation).

Thus, eye lens helps to focus the object.

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