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miss Akunina [59]
3 years ago
9

how did the formation of free oxygen from photosynthesis and the development of the ozone layer stop abiogenesis

Biology
1 answer:
inn [45]3 years ago
7 0

This solar energy conversion process is known as photosynthesis. ... At this time, the oxygen level was approximately 10% of its present atmospheric concentration. ... The presence of ozone enabled organisms to develop and live on the land.

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Genotypes are said to be in ___________ equilibrium if there is random mating and no other forces tend to alter the proportions
harina [27]

Answer: Hardy Weinberg

Explanation:

Genotype of the person are the characters that are can be defined as the genes that is responsible for certain traits.

Hardy Weinberg Rule states that if there is a random mating in the population then the genotype and allele frequencies in a population will remain constant from generations to generation in the absence of the evolutionary forces.

Hence, the correct answer is Hardy Weinberg.

5 0
3 years ago
Explain El Niño, how it's identified, and its potential negative impacts.
drek231 [11]

Answer:

HE IMPROVED THE WORLD BY GIVING SOMTHING THAT IT DID NOT HAVVE

Explanation:

ENJOY :)

6 0
3 years ago
Is this coffee white or black ?
levacccp [35]
Black the creamer makes it look white along with the side of the cup that it is in and the lighting and your phones picture could also make it different than it looks
4 0
2 years ago
Read 2 more answers
- Start with the P generation with the following genotypes (AA x aa). Based on classical Mendelian inheritance, how will a cross
nexus9112 [7]

Answer:

<em>The correct option is Although the F1 generation will all show the dominant trait, the offspring  will all be heterozygous and increase chances of future variation.</em>

Explanation:

The cross for the offsrings that will be produced by F1 generation is shown below:

         a          a

A      Aa       Aa

A      Aa        Aa

As we can see that all the offsprings in the F1 generation will have heterozygous genes but only the dominant trait will be seen in the phenotype of the F1 generation.

A cross between the F1 generation will give the following results:

         A          a

A      AA      Aa

a       Aa      aa

This cross shows that there will be increases genetic and phenotype variations in offsprings that will be produced by the F1 plants.

6 0
3 years ago
A ___ is a species whose population is at risk of extinction.
konstantin123 [22]
An endangered species.

3 0
3 years ago
Read 2 more answers
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