Describe how the structures of the epidermis allow it to provide immediate and indirect protection to underlying tissues.

Answers

Answer 1

Answer: The stratum corneum is the outermost layer of the skin. It is a thick row of dead cells that contain keratin. Keratin is responsible for keeping the skin elastic and in preventing the underlying cells from drying out. The skin is called the Integumentary system of the body, it is responsible for protecting muscles, bones, and vital organs inside the body. It serves as a covering that is composed of two layers the Epidermis (outermost layer) and the Dermis (inner layer). They provide the necessary impulses for temperature control in the body through the different nerves and receptors.

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Given the blood types of rhe mother and the child,what is the possible blood type of the father?
How does the electromagnetic spectrum arrange different types of radiation?a. By color b. By how fast they go c. By how much energy they carry
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Cats have a gene that codes for the color of their fur.Suppose that a certain breed of cat can have black, gray, or white fur. Black fur is dominant, white fur is recessive, and gray fur is intermediate (i.e., cats with gray fur possess one allele for black fur and one for white fur).

If a gray cat and a white cat have kittens, what phenotypes could the kittens exhibit?

A) gray or white fur
B) only gray fur
C) black or white fur
D) black, gray, or white fur

Answers

Punnet square
Let's call black 'B' and white 'b'
Being intermediate, gray cats will have the alleles 'Bb'
Being recessive, white cats will have the alleles 'bb'
Gray
| | B | b |
White |b| Bb | bb|
|b| Bb | bb|

^Apologies for the awful drawing XD

Bb = Gray
bb = White
So the cats can have gray or white fur (A)

Fishermen have harvested certain fish to the point where the population of that fish is decreasing. This level of direct harvesting could cause (1) ecosystems to be improved for future generations (2) ecosystems to be severely damaged (3) the restoration of environmental stability (4) all other fish species to increase in number

Answers

This level of direct harvesting could cause the ecosystems to be severely damaged. The correct option among all the options that are given in the question is the second option or option "B". This type of fishing can disturb the natural balance and ultimately several species might vanish from our earth.

What factor determines when a species is considered invasive?a. It has positive environmental impacts.
b. It is environmentally damaging.
c. It spreads outside its native range.
d. It spreads within its natural range.

Answers

Answer: b. It is environmentally damaging.

An invasive species is a kind of living organism such as amphibian, insect, bacteria, fungus, plant or even the seeds or eggs of the organism that is not native to a region or ecosystem but introduced either accidentally or by the migration of the species in search of food, shelter, habitat and mates. The invasive species has the potential to compete with the native species, can harm the environment, and health of the human or other living species.

The invasive species spread rapidly after starving the population of native species for food, shelter and for other needs. The invasive species can affect the availability of water and can damage the quality of soil nutrients. Once it is introduced into a habitat it changes the environmental condition of that habitat adversely.

It is environmentally damaging

Which is the best example of organisms that have been naturally selected?

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Natural selection is when species learn to adapt totheir environment. They could (1) differential reproduction, that is, not allorganisms are able to reproduce to their fullest capacity because nature cannotsimply sustain it and (2) acquire genes, that is heredity. Certaincharacteristics of organisms tend to survive if it continues to strive. If itsurvives, this trait is passed down to the next generations forgetting theother traits but only the one who could survive the environment. Therefore itis true that naturalselection is when ‘organisms inherit advantageous traits, and tend to reproducemore successfully than other organisms’. One best example is the extinction ofother animals and some with the same species retains.

One example is the snowy white owl. It came from the forest and rested and lived near a town. In the town, there was a lot of pollution, so the snowy owl evolved to become more blended with pollution and smoke, a brown or black color. So now, the snowy owls were technically extinct by natural selection and the darker shades of owls survived because of their adaptation to the environment and the color of their feathers.

In response to a stimulus such as pain, a neuron sends a signal to the brain using __________.a. contraction and relaxation

b. electrical signals and chemical neurotransmitters

c. respiration and absorption

d. myosin and actin

Answers

The answer is b. electrical signals and chemical neurotransmitters.

Electric signals include action potential. When neurons hit threshold and action potential is triggered, the Na+ channels open and Na+ ions enter the neuron. After the depolarization of membrane, Na+ channels inactivate. Consequently, the action potential is generated.

When an action potential reaches presynaptic terminal on a neuron, it will induce a release of neurotransmitters from the neuron. Neurotransmitters pass through the synaptic cleft and bind to the receptor on a postsynaptic neuron.

What is the term for the main stream and tributaries of a river?

Answers

Hi There! :)

What is the term for the main stream and tributaries of a river?

The region drained by a river and its tributaries is the river basin. The actual river and tributaries is the river system.

Other Questions

Which of the following best describes an example of a specific immune response to pathogens?A:Cytotoxic T cells are activated and destroy cells that pathogens have invaded. B:Fever increases body temperature and speeds up the body's reaction to pathogens. C:Phagocytes identify cells invaded by pathogens and mark them for destruction. D:Mucus traps pathogens and destroys them before they can enter the body.

An example of allopathic veterinary medicine is surgery True or false

Why are plants in the alpine biome typically low growing? a. They have limited access to nutrients. b. They have limited access to sunlight. c. They have too much access to water. d. The have access to nutrient-rich soil.

Which is true about the temperature of a gas?At a higher temperature, the particles have a higher average kinetic energy. At a higher temperature, the volume of the gas is smaller. At a lower temperature, there are more particles in the gas. At a lower temperature, the particles in the gas move faster.