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2 years ago

The maximum force of static friction between the crate and the floor is 245

Biology

1 answer:

NeTakaya2 years ago

8 0

Answer:

A: 250 N to the right

Explanation

got it right on a quiz apx learning

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Read the selection and answer the question that follows:

jok3333 [9.3K]

Answer:

2nd section

Explanation:

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3 years ago

Between water, plant, air,sun which is the most important and without which one can die

Hoochie [10]

Answer:

sun

Explanation:

there would be no life whatsoever if we have the sun.

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3 years ago

Cell-to-cell communication is absolutely essential for multicellular organisms. But how do plants communicate when their cells a

nevsk [136]

Ans.

Cell-to-cell communication allows signalling of essential substances between the plant cells, which are surrounded by cell walls. The molecules used by plants for long-distance signalling are known as hormones, such as auxin, ethylene, and gibberelin.

These hormones are secreted by one plant cell and received by another plant cell, where it exerts it affect. Thus, the correct answer to be fill in the blank is 'option A). hormones.'

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3 years ago

Bacteria and other microbes can be used to "clean up" an oil spill by breaking down oil into carbon dioxide and water. Two sampl

aksik [14]

Answer:

For sample A, A=17.7 %, T=17.7 %, G=32.30%, C=32.30%

For sample B, A= 28.9%, T=28.9%, G= 21.10%, C= 21.10%

Explanation:

The composition of nitrogenous bases in DNA is calculated using the suggestions proposed by the results of the experiment performed by Erwin Chargaff.

He found that in a DNA sample the composition of purine to pyrimidine is 1:1. This indicates that the amount of purine equals pyrimidine. This can be presented as purines + pyrimidines= 100. Also, adenine binds thymine and cytosine binds guanine.

In the given question,

For sample A

A= 17.7 %, Therefore, thymine will be = 17.7 %,

A+T= 35.40%

Now, G+C=100- 35.40%

G+C= 64.60%

content of G= 64.60/2= 32.30%

content of C= 32.30%

For sample B

T=28.9%, A will be= 28.9%

A+T= 57.80%

G+C=100-57.80%

G+C= 42.20%

Thus content of G will be= 42.20/2=21.10

content of C= 21.10%

Thus,

For sample A, A=17.7 %, T=17.7 %, G=32.30%, C=32.30%

For sample B, A= 28.9%, T=28.9%, G= 21.10%, C= 21.10%

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3 years ago

I need to answer this asap!

zmey [24]

<h2>Answer:</h2><h2>1. D is correct.</h2><h2>2. C is correct.</h2><h2>3. D is correct.</h2>

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3 years ago