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Reil [10]
3 years ago
8

What evidence is used to determine the branching sequence of an evolutionary tree?

Biology
1 answer:
kumpel [21]3 years ago
7 0

Anatomical or molecular homologous structures

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Unconditional positive regard is a rogerian term for _____.
cestrela7 [59]
Unconditional positive regard is a Rogerian term for: Positive behavior toward a person without attaching any contingencies.
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3 years ago
The atomic number of krypton (Kr) is 36, and its mass number is 84. How many neutrons does it have?
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I believe the Answer is B
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3 years ago
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Changing<br> can cause certain traits to be favored through<br> This can lead to changes in
Iteru [2.4K]

Answer:

he relationship between environment, variation and selection lay the foundation for natural selection and evolution.

Genetic variations are present among species due to number of reasons like recombination or crossing over during meiosis, mutations, random fertilization etc. These factors bring changes among the members of a species. Some of the species become better adapted to survive in a particular environment whereas some are not better adapted and become extinct over a period of time. The environment selects the organisms that are best adapted to survive and hence lead to variations.

Explanation:

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3 years ago
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A plant homozygous for the unlinked dominant alleles A, B and G is crossed with another plant that is homozygous for the recessi
fomenos

Answer:

9/64

Explanation:

Given, AABBGG X aabbgg = AaBbGg (F1)

Resulting F1 progeny is self fertilized.

AaBbGg X AaBbGg :

If we check individual crosses:

     A     a

A  AA  Aa

a   Aa  aa

3/4 of the progeny will display dominant A phenotype ( AA, Aa ). Similarly,

3/4 of the progeny will display dominant B phenotype ( BB, Bb ).

    G      g

G  GG  Gg

g   Gg   gg

1/4 of the progeny will display recessive g phenotype (gg).

Total offspring that will display ABg phenotype =

3/4 * 3/4 * 1/4 = 9/64

7 0
3 years ago
Sometimes when organisms evolve, it gives rise to multiple species that can coexist simultaneously. Give an example supporting t
Effectus [21]

The finches may have speciated from the  Galápagos finch and now occupy different habitats.

<h3>What is speciation?</h3>

The term speciation has to do with a type of evolution that gives rise to new organisms from existing ones. It is common in the world today. These ne organisms all tend to coexist with each but may not be on the same habitat.

For instance, the finches may have speciated from the  Galápagos finch and now occupy different habitats.

Learn more about speciation:brainly.com/question/9589072?

#SPJ1

5 0
2 years ago
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