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Nikolay [14]
3 years ago
11

What's the rate of change for 1838 to 1990?

Biology
1 answer:
maw [93]3 years ago
3 0

Answer:

i think 6 or 7 right

Explanation:

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The stomata you view on the surface of the leaves are used in gas exchange and the guard cells regulate this exchange. What do y
beks73 [17]

Answer:

They will collapse and shut off the stomatal pore

Explanation:

The guard cells are regulated by the presence of water. When water is present, they become turgid and open up the stomatal pore and when water is inadequate, they become flaccid, collapse and close up the stomatal pore as a result.

<em>If the leaf is left under the microscope for too long, there will be loss of water by evapotranspiration and the guard cell will become flaccid and collapse as a result and the stomatal pore will become closed.</em>

8 0
4 years ago
What hormone released by the highlighted structures inhibits the secretion of FSH only?
soldi70 [24.7K]

Inhibin inhibits the secretion of FSH only.

<h3>What is the role of inhibin?</h3>
  • Inhibin is a protein mainly produced by the gonads.
  • In men it is produced by the Sertoli cells and it is produced by the granulose cells in women.
  • It negatively regulates the secretion of Follicle Stimulating hormone (FSH) from the pituitary gland.
  • FSH itself induces the production of inhibin for negative feedback.
  • Pituitary is a pea shaped endocrine gland present at the base of the brain. It is the major endocrine gland and controls growth, development and functions of other endocrine glands.
  • Hormone activin has opposite effect to inhibin. It enhances FSH biosynthesis and secretion.

Learn more about pituitary here:

brainly.com/question/1372599

#SPJ4

5 0
2 years ago
For water to travel across the cell membrane at a substantial rate, what does it need?
jeka57 [31]

Answer:

It needs protein channels known as Aquaporins.

Explanation:

These Aquaporins, also referred to as water channels, are membrane proteins which serve as passageways for water. Aquaporins facilitate the transportation of water and other neutral molecules across cell membranes.

8 0
3 years ago
How do single-called and multicellular organisms differ?
topjm [15]

Explanation:

they differ because it doesn't hurl multi-cellular organisms if one cell dies but if a single celled organism looses its one cell that organism will die.

8 0
3 years ago
Answer is in the picture please help
madam [21]

Answer:D

Explanation:All things are made up of atoms but only living things are made of cells.

7 0
3 years ago
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