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Pavlova-9 [17]
3 years ago
6

This picture illustrates what type of selection

Biology
1 answer:
Lapatulllka [165]3 years ago
4 0

Explanation:

directional

stabilizing

normal

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How does water rise from the roots of a tree to the very top?
Nataly_w [17]
There are small tubes that connect all parts of a plant or a tree with the root. The root then applies root pressure to the nutrients and the nutrients and the water are pumped towards the upper parts through these small tubes.
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What was the second organism to be found here on planet Earth?
Aleks [24]

Answer:

Prokaryotes

Explanation:

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2 years ago
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Which biomolecule is the most diverse and has a variety of functions? *
ryzh [129]

Answer: Proteins

Explanation:

Proteins are one of the most plentiful naturally-grown molecules in living systems and possess the most distinctive extent of duties of all macromolecules. The purposes of proteins are highly distinct for 20, unlike chemically different amino acids that develop large chains, plus the amino acids can occur in any method. Proteins may be architectural, regulatory, contractile, or shielding; they may work in transportation, storage, or membranes; or they may be poisons or enzymes. An instance of the function of proteins: proteins can work as enzymes or hormones. Enzymes made by living cells are catalysts in biochemical reactions and are usually proteins.

4 0
3 years ago
How does extracellular glucose inhibit transcription of the lac operon?
Genrish500 [490]

The extracellular glucose inhibit transcription of the lac operon (D) by reducing the levels of intracellular cAMP.

Lac operon is the assembly of various genes that are involved in the uptake and metabolism of lactose of E. coli or any other bacteria. It consists of a regulator gene, promoter gene, operator and structural gene. Structural genes are three: z, y and a. Each codes for a different enzyme.

cAMP is the cyclic Adenosine Monophosphate. It is produced by the bacteria when there are low levels of glucose in it. Hence it is also named as hunger signals. Therefore, cAMP is responsible for activating the operon to produce lactose.

To know more about cAMP, here

brainly.com/question/13794408

#SPJ4

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2 years ago
Which of the following statements is true of all organisms in every environment?
Pani-rosa [81]

Answer: C

Explanation: All organisms someway somehow must compete for essential resources.

7 0
3 years ago
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