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slamgirl [31]
2 years ago
7

PLEASE HELP I WILL GIVE 50 POINTS!!!!! (btw its science not biology)

Biology
2 answers:
Elena L [17]2 years ago
4 0

Answer:

B. Catastrophism

Explanation:

Catastrophism is the theory that states that the Earth was mostly shaped by very sudden effects. These sudden and short-lived events would occur worldwide in scope and change the Earth rapidly. This is in contrast to uniformitarianism that states that slow incremental changes made the Earth like it is today. Changes like erosion.

seropon [69]2 years ago
4 0

Answer:

The answer is B

Explanation:

I took the quiz

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Because they have less resources to fight off disease and nothing to use for immunity. Sub Sahara Africa is also very poor
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3 years ago
The two main sources of genetic variation are shuffling and
S_A_V [24]
Meiosis. Sexual recombination. Crossing over. Independent assortment. Mutations.
The two MAIN sources would be genetic(sexual) recombination and mutations. Mutations allow for genetic variation, while genetic recombination allows for genetic shuffling. :)
5 0
3 years ago
What happens during synapsis?
ozzi

Answer:

C

Explanation:

8 0
3 years ago
Purple flowers are dominant to white flowers. A heterozygous purple flower is crossed with a white flower. What are the probabil
Zanzabum

Answer:

50% probability of Pp (purple) or pp (white) genotype.

Explanation:

P = purple gene

p = white gene

Punnet squares show the possible genotypes and probabilities of each genotype in the offspring of a cross:

Purple flower genotype (heterozygous) = Pp

White flower genotype = pp

Punnet Square:

\left[\begin{array}{ccc}&P&p\\p&Pp&pp\\p&Pp&pp\end{array}\right]

Potential genotypes for offspring are Pp and pp;

According to the Punnett square, 2 of 4 offspring will have the Pp genotype and the other 2 will have pp genotypes;

This means 2 should be purple and 2 white;

Or, there is a 50% chance of having either genotype, of being purple or white.

8 0
3 years ago
Read 2 more answers
Which answer is correct?
White raven [17]

Answer:

4

Explanation:

3 0
2 years ago
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