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frutty [35]
3 years ago
14

Helppppppp

Biology
1 answer:
maria [59]3 years ago
4 0

Answer:

Because in 1900s more revolutions took place and more pollution was done.

plz mark me as brainliest.

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Can someone please help me with this
iVinArrow [24]
The answer is b. The increase in population suggests that a beneficial trait helped the species.
6 0
3 years ago
Read 2 more answers
Semen contains all of the following, EXCEPT
kap26 [50]

Answer: C. Clotting enzyme

Explanation:

Semen is the fluid that is discharged by the male reproductive organs. It is composed of sperms and viscous fluid to facilitate the flow of sperms to the female genital tract. It consists of fluids secreted from various glands. The seminal vesicles secrete about 70% of the semen. It consists of fructose. The prostrate gland secrete about 20% volume of the semen. The fluid consists of acid phosphatase, and proteolytic enzymes. The bulbourethral gland secretes about 5% of the total volume of semen. It consists of mucoproteins.

The clotting factors or enzymes are absent in semen as these are produced by the blood platelets at the site of injury.

8 0
4 years ago
How did the Miller-Urey experiment impact the way scientists think about the origins of life?
Mazyrski [523]

The Miller-Urey experiment showed that simple molecules could have arisen abiotically. This chemical experiment included conditions similar to those present on the early Earth, and tested the origin of life under those conditions.

Water (H2O), methane (CH4), ammonia (NH3) and hydrogen (H2) were the chemicals used to produce the results of the experiment, the factors needed for simple life to arise. Given similar conditions on other planets, it's possible that life could arise there as well.

3 0
3 years ago
which of the following is the correct sequence of the zones in the primary growth of a root, moving from the root cap inward?
Rom4ik [11]
The correct answer for the question that is being presented above is this one: "zone of cell division, zone of elongation, zone of differentiation." This <span>is the correct sequence of the zones in the primary growth of a root, moving from the root cap inward.</span>
3 0
4 years ago
How can you tell the relative ages of rock layers?
Dovator [93]

Answer:

Its difficult to determine the absolute age so geologists use method to find a rock's relative age. Use the: LAW OF SUPERPOSITION: in horizontal sedimentary rock layers, the oldest layer is at the bottom. Each higher layer is younger than the layers below it.

Explanation:

(Rockaway Middle School, Relative Ages Of Rocks)

4 0
3 years ago
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