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kifflom [539]
2 years ago
5

(HELP ASAP I'LL GIVE YOU BRAINLIEST)

Biology
1 answer:
Leokris [45]2 years ago
4 0
I think A is the answer
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The external similarity of insect wings and bird wings is an example of
barxatty [35]
The answer would be adaption or evolution in the animal kingdom
3 0
3 years ago
Your friend brings you rocks with a thick layer of oxidation weathering, and no other visible signs of weathering. this is a clu
Vsevolod [243]
<span>A moist environment because physical weathering processes such as oxidation take place most quickly in the presence of water. There are three types of weathering, physical, chemical, and biological. For the physical weathering, there are two main types. Freeze-thaw cycles and exfoliation. Obviously the freeze-thaw cycles require water and the exfoliation generally happens through thermal expansion and contraction which doesn't require water. But since neither of these mechanisms were observed, that doesn't indicate if the area was wet or dry. Biological weathering is caused by plants or animals breaking down rocks via chemical (acid) or mechanical (root growth) means. Life generally indicates the presence of water, but since this form of weathering wasn't observed, we still don't have enough data. Chemical weathering is caused by rain water reacting with the rocks to form new minerals and salts. There are several types such as acidic rainwater dissolving part of the rock, and oxidation. With this in mind, let's take a look at the available options. A moist environment because there is a greater density of oxygen in the atmosphere in the presence of water. * Yes, we need a moist environment, but the density of oxygen is fairly constant world wide regardless of how moist or dry the environment is. So this is a bad choice. A moist environment because physical weathering processes such as oxidation take place most quickly in the presence of water. * Water speeds up chemical weathering of all types. So this is the correct choice. A dry environment because the increased albedo of deserts encourages physical weathering processes such as oxidation. * Yes, the increased albedo of deserts does speed up spalling, but oxidation is a CHEMICAL weathering process, not a PHYSICAL one. So this is a bad choice. A dry environment because in the absence of water oxidation is the dominant weathering process. * Water speeds up oxidation quite a bit. And since the observed oxidation is thick, there's been quite a bit of weathering. So this is a bad choice.</span>
6 0
3 years ago
The dissolved waste molecules produced by the cells are removed primarily from the blood by the what?
Degger [83]
B-Kidneys

The kidneys act as filters that strain urea and excess salts from the bloodstream to release them in the urine.
4 0
3 years ago
What animo acids do the following DNA sequence code for?
Bogdan [553]

The sequence is

DNA --> RNA --> Amino Acid

For example

GGC is your DNA

CCG is your RNA

And your amino acid would be PRO

2.

AAT --> AAU -->ASN

DNA ---> RNA --> AMINO ACID

3.

TCA --> UGA --> STOP

DNA --> RNA ---> AMINO ACID

5 0
2 years ago
How many chambers does the heart contain?<br> A. 3 <br> B. 4 <br> C. 5 <br> D. 6
Wittaler [7]
<span>The heart contains four chambers: upper left atria, upper right atria, lower left ventricle and the lower right ventricle. Oftentimes, the right atria and right ventricle are together referred to as the "right heart" and the left atria and left ventricle are referred to as the "left heart", however there are still four separate chambers.</span>
4 0
3 years ago
Read 2 more answers
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