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riadik2000 [5.3K]
3 years ago
8

PLEASE HELP NEED TO PASS MY TEST AND ITS TIMED. NO GUESSING PLEASE

Biology
1 answer:
olga_2 [115]3 years ago
6 0

Answers:

a local fresh market ( second choice)

a business working with trained animals ( third choice)

a person buying large quanities of wheat ( fourth choice)

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How many times larger is the number of hydrogen atoms than oxygen atoms in a molecule of water, H2O? ______ b. Is this number th
garik1379 [7]

Answer:

The correct answer is- A) two, B) yes, the number is the same as monosaccharides.

Explanation:

There are three atoms are present in a molecule of water which includes two atoms of the hydrogen and one atom of the oxygen. The hydrogen atom is two times larger in the number of the oxygen atom in a single molecule of the water.

In monosaccharides, the ratio of the atoms of carbon, hydrogen, and oxygen is 1:2:1 which means one hydrogen atom would be twice in the number of the carbon and oxygen atoms in a single molecule of monosaccharide molecule.

Thus, the correct answer is - A) two, B) yes, the number is the same as monosaccharides.

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3 years ago
Please write me a sentence involving the word...homosexuality
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8 0
3 years ago
Which is the number 1 reason for loss of biodiversity.
Vinil7 [7]

Answer:

B. Habitat destruction

Explanation:

What is the number one cause of biodiversity loss? 1. Habitat destruction. Habitat destruction is a major cause of biodiversity loss.

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2 years ago
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3 years ago
The lac operon can be regulated by two distinct methods. Which of the following statements are correct?The lac operon can be act
Ad libitum [116K]

Answer:

  • The lac operon can be activated by the binding of allolactose to the repressor protein, releasing it from DNA and thereby allowing for transcription to occur.
  • In response to low glucose levels, cAMP is upregulated; the binding of cAMP to the cAMP receptor protein triggers the activation of the operon.

Explanation:

Lactose operon or lac operon  (includes lacZ, lacY and lacA genes) is found in some bacteria and the products of its genes are involved in lactose metabolism. So, this operon is active (genes are transcribed) when lactose is present and glucose is absent (or at low level). The operon is regulated by the lac repressor which acts as a lactose sensor and catabolite activator protein (CAP) which acts as a glucose sensor.

When there is lactose (in the form of allolactose) lac repressor detects it and stops being repressor. This enables transcription.

CAP detects glucose (via cAMP) and activates transcription when glucose levels are low.

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3 years ago
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