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AfilCa [17]
3 years ago
14

Blank are chemical messagners secreted by glands

Biology
1 answer:
elixir [45]3 years ago
5 0

Answer:

The answer is probably hormone

Explanation:

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Gnesinka [82]

Explanation:

if we will grow huge number of trees and other plants the oxygen level will increase because tree produce oxygen during the process of photosynthesis and if one gases level will increase then other will also decrease...

hope it helps

3 0
3 years ago
Which kingdom has 2 kingdoms that are all unicellular?
dalvyx [7]

Answer: Prokaryotes, archaea, protists, fungi, algae.

Explanation:I don’t think there are any single celled organisms that are today classified as animals. So basically I just left the animal kingdom out. Both metazoans and sponges are for the most part multicellular.

5 0
3 years ago
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What is the purpose of chromosomes in the nucleus?
attashe74 [19]

They are made of protein and one molecule of deoxyribonucleic acid (DNA). As the genetic material passes from parents to child, the chromosomes are responsible for containing the instructions that make the offspring unique while still carrying traits from the parent.

6 0
3 years ago
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A student is preparing a solution of 0.1 M Tris-Cl (pH 7.0) with 200 mM NaCl. To adjust the pH, the student started with concent
Sophie [7]

Answer:

The correct statements are C The pH is accurate but the solution will have excess salt. D The pH is accurate but the concentration of Tris will be incorrect

Explanation:

As the pH is finally maintained at 7 the pH for the buffer solution will be accurate but excess salt will be produced due to use of Both NaOH and HCl to make up the to 7.

As more volume of water is required at final step to make up the volume the concentration of tris will be incorrect.

7 0
3 years ago
16. Name one organism that reproduces through binary fission​
Grace [21]

Answer:

Coral!

Explanation:

I learned this is a biology class a while ago!

3 0
3 years ago
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