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Llana [10]
4 years ago
13

If scientists determine the age of a rock to be three billion years old, what else do they know?

Biology
1 answer:
Mkey [24]4 years ago
4 0
C) The Earth is at least three billion years old. :)
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Explain the stages of tissue repair and fill in the blanks.
svp [43]

Answer:

a. Following an injury that breaks the surface of the skin. blood vessels dilate as a result of histamine release from mast cells and other damaged cells.

b. The blood forms a clot and upon drying, a scab forms a barriers between the body and the environment, while phagocytes work to clear the underlying debris from the wound site.

c. Blood vessels begin to re-grow into the wound while fibroblasts begin process of replacing the blood clot with Collagen

d. The remodeling phase then occurs as fibrosis and regeneration of tissues may continue for prolonged period of time.

Explanation:

Hello. Although you did not have all the answer options for the blanks presented in the sentences above, it is possible to conclude that the words in bold are the most appropriate to fill these spaces.

That's because when we cut ourselves, the blood vessels on the surface of our skin rapidly dilate, allowing a flow of blood to be observed. This dilation is accomplished by the release of histamine, which is released by mast cells, which are glands that regulate the immune response. At this point, it is important that any impuzera or microorganism, close to the wound site, is removed and this site undergoes cleaning. This is done by phagocytes, which are intended to prevent the cut from becoming the entrance to a bacterial infection.

Then the blood vessels begin to move and grow again across the wound, with the aim of covering this opening. In this comment, fibroblasts begin to apply collagen and replace the blood clot formed to prevent blood loss. Collagen will be responsible for maintaining the skin and tissues that will be rebuilt in the remodeling phase.

3 0
3 years ago
Please help with this...?
avanturin [10]

Answer:

Two parents with B blood type can produce a child with either B or O blood type. One parent with A and another with B can produce a child with A, B, AB or O blood types. If one parent has A and another has AB, they can either produce a child with A, B or AB blood types.

Explanation:

took biology

8 0
2 years ago
How did mammals survive the mass extinction?
harkovskaia [24]

Answer:

C. Both of the above.........

3 0
3 years ago
Read 2 more answers
1
luda_lava [24]

Answer:

i think the correct answer is c

Explanation:

hope this is correct

8 0
3 years ago
My homework states "The following are not characteristics of all living things. For each one give an example of something that i
Arte-miy333 [17]
The answer is a moves
3 0
4 years ago
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