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Ivan
3 years ago
13

Which of These is a exoskeleton A. Deer B. crab C. tree D. elephant

Biology
1 answer:
Bogdan [553]3 years ago
7 0
B. Crab

is your answer

An crab has an exoskeleton

hope this helps
You might be interested in
How is water stored on Earth during the water cycle?
Lina20 [59]
Well , run off water plays a big part in this.

run off water is usually when water is in a puddle or on the ground and ran off into the sewer.

i hope this helps you a lot
7 0
2 years ago
A process that increases genetic diversity during meiosis is called
Irina18 [472]

Answer:

crossing over

Explanation:

7 0
3 years ago
Help? You are studying an outcrop where the lower layer is limestone and the layer directly on top of the limestone is sandstone
ELEN [110]

Answer:

Due to mixing of particles present in the upper layer of limestone with sandstone during deposition.

Explanation:

The parent layer was limestone layer which is older than sandstone layer. This sandstone layer spreads on the limestone layer because of wind. The wind moves these sandstone from other region and their deposition occurs on the limestone layer. During deposition of sandstone, some particles of limestone which are present at the surface mixes with the sandstone so that's why in sandstone layer, small and weathered pieces of limestone are present.

7 0
2 years ago
The wall of the left ventricle is thicker than that of the right and the left ventricle pumps more blood than the right. Are the
Rus_ich [418]

The wall of the left ventricle is thicker than that of the right - True

The left ventricle pumps more blood than the right - False

<u>Explanation:</u>

Heart has 4 number of chambers. One among these chambers is the left ventricle. Among the four cambers of the heart, the thick one is the left ventricle. It appears below the left atrium. The left ventricle is present in the bottom left part of the heart. When the contraction of heart occurs the blood from the valve called mitral enters the left atrium from the left atrium.  

The left ventricle transports the oxygenated blood to the human body. The left ventricle needs along these things for pumping the blood. The right ventricle can function by itself and is more powerful than left ventricle. The right ventricle is responsible in pumping blood to the lungs on its own.

7 0
3 years ago
"Now that you have come up with an equation that describes the relationship between amounts of different nucleotide bases in DNA
Dima020 [189]

Answer:

G - 21%

T - 29%

A - 29%

Explanation:

Nucleotide bases in DNA are complementary. Adenosine (A) binds to Thymine (T) while Cytosine (C) binds to Guanine (G). Hence the composition of A in DNA is the same as that of T; and that of C is the same as that of G.

From the information given, C is 21%

Therefore G is also 21% of the genome as  C is bound to G, the therefore are the same proportion.

C and G make up 42% of the genome (that 21% + 21%).

The remaining 58% (100%-42%) is made up of A + T

Similarly the proportion of A is equal to that of T,

Hence A is 29% (half of 58%) and T is 29%.

4 0
3 years ago
Read 2 more answers
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