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jolli1 [7]
3 years ago
8

A positively charged molecule. This molecule consists of three hydrogen atoms bonded to an oxygen atom. What name is given to th

is molecule?
a. hydroxide ion.
b. glucose.
c. methane.
d. hydronium ion.
e. water.
Biology
1 answer:
Romashka [77]3 years ago
7 0

Answer:

The correct answer is d. hydronium ion.

Explanation:

Hydronium ion is a positively charged molecule that has three hydrogen atom bonded with an oxygen atom. Hydronium ion is formed when the water molecule gains an extra H+ ion from somewhere.  

This H+ ion easily form bonds with one of the lone pairs present on the water molecules. H2O is also a polar molecule and has a partially positive charge due to which the extra H+ ions get attracted to the negative pole of water and make hydronium ion. Therefore the correct answer is d.

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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
An individual's complete collection of genes is called his or her:
BabaBlast [244]

The right answer is genotype.

The genotype is the information carried by the genome of an organism, contained in each cell in the form of deoxyribonucleic acid DNA. Carried by the chromosomes, it is located inside the nucleus in eukaryotes and in cytoplasm in prokaryotes.

In humans, it is estimated that the number of genes is between 25,000 and 30,000.

7 0
4 years ago
Please help with this question ASAP
grigory [225]

Answer:

D

Explanation:

because molecule A is only shown on the outside and is not exposed to the acidity on the inside of the cells

4 0
3 years ago
Plants in hot environments like deserts open their stomata at night because they are adapted to
stepan [7]

Answer:

To reduce water loss.

Explanation:

Keeping the stomata closed during the day, helps reduce water loss when dry, hot wind blows across it.

3 0
2 years ago
PLSS HELP ME WITH THIS
AnnyKZ [126]
I’m sorry I don’t know
6 0
3 years ago
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