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svetoff [14.1K]
3 years ago
14

HELP I NEED HELP ASAP

Biology
2 answers:
Assoli18 [71]3 years ago
7 0
I believe the answer is D, are expensive to purchase.
Andreas93 [3]3 years ago
6 0

Answer:

D - cost of purchasing

Explanation:

Solar panels use the sun to operate which has no cost so the answer is not C

The sun does not create green house gases and has nothing to do with pollution so the answers can't be a or b leaving us with answer choice D

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100 points and Brainliest!!! Plus, an opportunity for an extra 100 points if correct.
rewona [7]

Answer:

Natural selection leads to evolution due to the way reproduction works. In the example of European moths during the industrial revolution, we can see this clearly. When the industrial revolution was going, there was more pollution, hence darkening the skies and leaving ash. Moths, which before were white with occasional black spots dominated the area until pollution effected their environment. Whiter moths were eaten by bird who could easily see them against the black trees and skies. These moths could no longer reproduce, they were dead. Moths with more black could survive longer to reproduce because they were harder to see. As time went along, the moths turned mostly black, showing an example of evolution.

3 0
3 years ago
True or false? A mating between a tetraploid individual and a diploid individual produces biologically fit offspring.
Katyanochek1 [597]

A cross between a diploid individual and a tetraploid individual produces triploid offspring.  There are many species of plants that are triploid, but those come from crosses between two triploid individuals. In those cases, the chromosomes from one parent match up with the chromosomes from the other parent just fine. The same is not true with a cross of a tetraploid and a diploid.  In that case, one third of the chromosomes are unmatch, causing many offspring to die, to be sterile, or to be generally unfit.  Long story short, the answer you seek is False.

5 0
4 years ago
Which of the following gases is formed during photosynthesis?
katrin2010 [14]

Answer:

oxygen

Explanation:

6 0
3 years ago
Using the dichotomous key, which class does this animal belong to?
JulijaS [17]
The answer is a Reptile.

Because it lives in water (also out) and has rough skin. 
4 0
3 years ago
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What could happen to the reproductive process of mosses during a drought? The flagellated sperm would not be able to swim to the
Wittaler [7]
The answer is <span>The flagellated sperm would not be able to swim to the eggs for fertilization.

</span><span>Their life cycle of mosses has alternation of generation - a haploid gametophyte and a diploid sporophyte. Gametophyte produces haploid gametes which fuse to form a diploid zygote. The zygote grows into diploid sporophyte which produces haploid spores. The spores grow into gametophyte and the cycle begins again.
</span>Mosses require water for reproduction. Before fertilization, the sperm swims to an egg through the water. Therefore, mosses require water for successful fertilization. In drought periods, without water, the sperm cell could not swim to the egg cell.
6 0
3 years ago
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