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4 years ago

Which statement best compares the moon and Earth?

Biology

2 answers:

True [87]4 years ago

5 0

Answer:

It should be D-The moon has no atmosphere, but Earth has an atmosphere rich in liquid water.

Explanation:

Well first lets look at your choices.

A-They both spin at the same speed.

No, the moon rotates faster then the earth.

B-The moon has carbon dioxide, but Earth has oxygen and nitrogen

That is also a no. The moon is mainly composed of argon, not carbon dioxide.

C-They both take the same time to complete one revolution around the sun.

The moon revolves around the earth in 24 hours of earths time. So this is not correct.

D-The moon has no atmosphere, but Earth has an atmosphere rich in liquid water.

This should be correct. The moon statement is true and the earth is 95% water so that is also true.

Have a great day!

Morgarella [4.7K]4 years ago

3 0

The answer is D ! Hope this helps

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Explain how introducing a new species to an ecosystem or losing an entire population can impact the ecosystem.

AlladinOne [14]

Answer:

The ecosytsem has a very fine balance. Each species is dependant on one another for food and population control. Introducing a new species such as the Cane Toad which has been introduced into Australia and Flordia and are extrmely invasive completly wipping out populations of Native species and are a huge problem. If you lose a population such as the wolves in yellow stone species such as elk will actually suffer from starvation and other issues due to lack of food etc because the wolves were not there for population control. But in some cases such as the wolves who were added back into Yellow stone it had a huge positive impact on species/populations.

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2 years ago

How can a liquid be drawn into a pipette safely?

Reptile [31]

Answer:

By squeezing a bulb attached to the wide end of the pipette

Explanation:

You squeeze the bulb and place it on the wide end of the pipet. Then you place the tip of the pipet in the solution and release your grip to pull it into the pipet.

B is wrong, unless you want to accidentally get a mouthful of the sulfuric acid or cyanide you are pipetting.

C and D are wrong. Even the wide end of a pipette is too narrow to fill with either a beaker or an eyedropper.

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3 years ago

A student analyzed a viral genome and found that the genome had the following nucleotide composition. 28% adenine 20% thymine 35

egoroff_w [7]

Answer: Option A) Double-stranded DNA

Explanation:

First, the presence of thymine infers that the genome is DNA.

Then, to determine whether it is single or double stranded, we check if the sum of all nitrogenous bases is equal to 100%

A + C + G + T = 100%

28% + 35% + 20% + 17% = 100%

Since all bases makes 100%, we can conclude that the genome is a double stranded DNA

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4 years ago

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12. All of the following are general functions of the Pituitary Gland EXCEPT:

alekssr [168]

I think it is
C
Hope this help you?

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3 years ago

What is the advantage of the selective microorganism of a cell?<br>

Bumek [7]

Answer:

Selective and differential media are used to isolate or identify particular organisms. Selective media allow certain types of organisms to grow, and inhibit the growth of other organisms. The selectivity is accomplished in several ways.

Explanation:

I hope it's help

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3 years ago

Read 2 more answers