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tekilochka [14]
3 years ago
12

All multicellular organisms begin as a skin cell. within four or five days, that first cell multiplies into a ball-like structur

e of about 100 cells. what is this structure called?
A. Blastocyst
B. Blood
C. Placenta
D. Heart
Biology
2 answers:
ladessa [460]3 years ago
8 0
The correct answer is A. Blastocyst.

I hope I helped!
lora16 [44]3 years ago
8 0
The answer is A , hope you got it
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bija089 [108]

Answer:

B

Explanation:

Amino acids fold to form the protein and give it its functionality. Different orders of amino acids fold differently and make a different shape. The shape of the protein defines its function. The function will vary wildly

4 0
3 years ago
In the system used to classify all organisms, which of the following is true?
Fofino [41]
B is correct, Organisms in the same group have similar characteristics
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What do a dinosaur and a tree have in common
alisha [4.7K]
They both can be traced back millions of years ago
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Which of the following does NOT contribute to sea level rise?
Andrei [34K]

Answer:

D is the correct option

Explanation:

expansion of water is not significant over day night temperature

7 0
3 years ago
The brothers pictured below are identical twins. The boys in this picture look alike because their bodies contain identical carb
Romashka [77]

Answer:

nucleic acids.

Explanation:

The fusion of the sperm with the egg results in the formation of a zygote that develops into a new offspring. Twins refers to the two offspring which are a result of the same pregnancy. They are of two types. Monozygotic twins are a result of the single zygote (formed by the fusion of one egg with a single sperm) spiltting into two embryos forming the identical twins. Dizygotic twins are a result of two eggs fertilized with two different sperms forming the fraternal twins.

Identical twins are genetically simliar. The genetic material is derived from the same embryo and thus, the DNA of the identical twins are nearly identical. The spilitting of the embryo formed results in the separation of the same genetic material or identical DNA getting incorporated into the twins making them look alike in majority of the cases.

6 0
3 years ago
Read 2 more answers
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