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dimaraw [331]
3 years ago
5

The Pangaea theory supports the theory of plate tectonics because _____.

Biology
1 answer:
Volgvan3 years ago
6 0
I believe the answer is A it’s is A lol
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4. When the difference in the electronegativity of 2 elements is small,
Juliette [100K]

Answer:

When the diffrence is small like between Oxygen and Carbon the electrons will be shared. When it is large like in Na and Cl the Cl will steal one electron.

Explanation:

6 0
2 years ago
In ducks, the trait for normal feathers is dominant to the trait for silky feathers. If
vesna_86 [32]

Answer: The genotype ratio is 2Ff : 2ff

The phenotype ratio is two normal feathered birds to two silky feathered birds.

Explanation: Let F represent the gene for normal feather and f represent the gene for silky feather. F is dominant while f is recessive, therefore a male that is hybrid for trait of normal feather is heterozygous and will have a genotype of Ff, a female that is homozygous for silky feather will have a genotype of ff.

A cross between Ff and ff will yield 2Ff birds and 2ff birds. Since F is dominant, a bird having genotype of Ff will manifest outwardly as blue feathered birds while ff will manifest outwardly as silky feathered birds because f is recessive and must occur in a homozygous condition in order to manifest phenotypically. Therefore, the genotype ratio is 2Ff: 2ff.

See the punnett square attached for more information

5 0
3 years ago
Question 3 of 10<br> What is a B cell?
fiasKO [112]

the extra cell in your blood cells

4 0
2 years ago
Consider the three different types of stem cells. Each one’s ability to differentiate into new cells is slightly different. One
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Totipotent, pluripotent, multipotent
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Ac<br> Hurry help me!!!
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It goes B C A hope it helped!
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