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Contact [7]
3 years ago
14

Sea lampreys were likely introduced to Lake Superior in ??

Biology
2 answers:
Firlakuza [10]3 years ago
8 0
The 1930s and the 1940s I think
grigory [225]3 years ago
5 0
The 1940 I think hope I am Right
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Which fuel source gives energy to all the activities of cells in all organisms on earth?
s2008m [1.1K]

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ATP

Explanation:

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3 years ago
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The _____ is a type of regulator protein that binds to a region of dna in the promoter of a gene called the operator and prevent
vivado [14]

The<u> repressor </u>is a type of regulator protein that binds to a region of DNA in the promoter of a gene called the operator and prevents transcription from taking place.

In the field of science, a regulator protein can be described as a kind of protein that affects the transcription of a gene by having an influence on particular DNA sites. The rate of synthesis of various proteins is controlled by the regulator proteins.

A repressor is a kind of regulator protein that prevents the transcription of a particular gene. When the rate of a protein in the body has reached normal, the transcription of the protein needs to be stopped in order for more protein of that kind to be formed. The repressor binds itself to the operator region for the gene, hence stopping the transcription process until the protein is required again.

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6 0
1 year ago
Net production efficiency (NPE) is defined as the product of 100 and the quotient of net consumer productivity and assimilation.
lutik1710 [3]

Answer:

The assimilation of the primary consumer is 5000 kcal/m2/yr, option C.

Explanation:

From the information in the question, the Net Production Efficiency, NPE can be calculated using 100Cp/AS.

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Therefore, 20 = 100 x 1000/AS

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8 0
3 years ago
When extra nutrients added to crops wash into
Katyanochek1 [597]

Answer:

<h2>I think, dead zoning is answer. </h2>

Explanation:

<h2>Hope it helps you.</h2>
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3 years ago
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3 years ago
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