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Dimas [21]
3 years ago
15

The tree of life is a metaphor for what idea?

Biology
1 answer:
Marianna [84]3 years ago
4 0

Answer:

B:we have multiple species

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The second generation phenotypes resulting from the cross of purebred monohybrid pollination will display a ratio of _____. 2:2
Art [367]
The answer is 3:1.

If we imagine that plant has two alleles for the trait, we can dominant allele represent with P represents and recessive allele with p. To get purebred monohybrid in the first generation, parents must be a dominant homozygote (PP) and a recessive hetero<span>zygote (pp):

Parental generation: PP   x   pp
The first generation: Pp  Pp  Pp  Pp

Pp represents a heterozygote.
If we cross these heterozygotes:

The first generation: Pp   x   Pp
The second generation: PP  Pp  Pp  pp

If dominant allele determines the phenotype, there will be 3 plants (one PP and two Pp) with one phenotype and only 1 plant </span><span>(pp)</span> with another phenotype and vice versa.
5 0
3 years ago
Read 2 more answers
Why do circuses use Asian elephants instead of African elephants?
Tcecarenko [31]
They use both there really isnt a big difference
 
6 0
3 years ago
Given two areas with equal sunlight and available water. Areal has a high amount of atmospheric carbon dioxide while Area II has
Mademuasel [1]

Answer:

C. The rate of photosynthesis increases with an increase in carbon dioxide.

Explanation:

Photosynthesis, which is the process by which certain organisms obtain their food from the light provided by the sun, can be inhibited or promoted by certain factors. One of the reactants of the photosynthetic process is carbon dioxide (CO2), hence, an increase in the amount of carbon dioxide, increases the rate of photosynthesis.

According to this question, two areas with equal sunlight and available water are being described to have different levels or amounts of CO2. Area I has a high amount of atmospheric carbon dioxide while Area II has a low amount of atmospheric carbon dioxide. This means that Area 1 will undergo more photosynthetic activity than Area II.

8 0
3 years ago
Definition: This is a type of protein found in the cell membrane, which regulates the coming and going of substances into or out
Inga [223]
I think Plasma Membrane?
8 0
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The situation in which allele frequencies in the gene pool of a population remain constant is called
qaws [65]
Http://highered.mheducation.com/sites/007246268x/student_view0/chapter13/
6 0
3 years ago
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