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lyudmila [28]
2 years ago
6

Need HELP

Biology
1 answer:
vesna_86 [32]2 years ago
3 0

Answer:

rock layers becuase fossils and other ancient things could be in there

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TRUE/FALSE
kotykmax [81]

Answer:

False

Explanation:

A double-helical DNA molecule consists of two DNA strands. A DNA strand has free 5' phosphate at one end and a free hydroxyl group (OH) at its 3' end. A DNA double helix is said to be antiparallel since each end of the double helix has an exposed 5' phosphate on one strand and a free 3' hydroxyl group (OH) on the other. This means that the two DNA strands run in opposite directions. A phosphate group is always esterified to the 5' carbon of the pentose sugar; never at its 3' end.

5 0
3 years ago
The majority of water found on Earth is: <br><br> ice<br> water vapor<br> fresh water<br> salt water
sergejj [24]

The correct answer is D. Salt water.

Explanation

The hydrosphere is the system that groups all the waters of the earth that include oceans, seas, rivers, lakes, lagoons, frozen waters like ice and snow, among others. The water of the earth can be classified between salt water and freshwater, within the first group we find the oceans and the seas that represent two thirds of the total water of the earth, that is, 93 percent of the total water of the earth, a figure close to 1 370 323 000km³; the rest of the water is fresh and consists of rivers, lakes, lagoons, streams, groundwater, and glaciers. So, the correct answer is D. Salt water

4 0
2 years ago
A car breaks down 2.1 m from the shoulder of the road. 1.99x103 N of force is used to push the car off the road. How much work h
vovikov84 [41]

Answer:

Joules

Explanation:

W = F * d

F = 1.99*10^3 N

d = 2.1 m

W = 4179 Joules

7 0
2 years ago
The phase after orgasm during which men are not capable of having an ejaculation is called:
Citrus2011 [14]
The answer should be the refractory period
5 0
2 years ago
Star light, star bright: how bright a star appears to us on Earth depends MAINLY on
aleksandr82 [10.1K]
The composition of the star!:-)
4 0
3 years ago
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