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rodikova [14]
2 years ago
12

What is the purpose of a geological time scalePLEASE HURRY​

Biology
1 answer:
user100 [1]2 years ago
4 0
Your answer should be the second one
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How are species related to the concept of biodiversity
liraira [26]

Species are diverse because there are so many and they are all different. Each species is biologically diverse from another. Biodiversity leads to adaptations and natural selection.

7 0
3 years ago
Please help will give brainliest answer asap
OverLord2011 [107]

1.Net Energy Gain is a concept used in energy economics that refers to the difference between the energy expended to harvest an energy source and the amount of energy gained from that harvest.

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Gregor Mendel crossed true-breeding plants with green pea pods with true-breeding plants with yellow pea pods. The resulting F1
Alchen [17]

Answer:

A. Mendel observed green and yellow pea pods in a 3:1 ratio because the F1 generation was heterozygous.

Explanation:

The two true breeding plants in the parental population were homozygous (that is what true breeding means). Therefore, their cross would lead to all heterozygous offspring (see attached punnet square). Green is the dominant characteristic, so all F1 plants had a green phenotype, but Gg genotype.

The F1 cross would therefore be Gg x Gg. See attached punnet square.

The genotypes in the F2 generation are 1 GG: 2 Gg: 1 gg 1

Therefore, the phenotypic ratio is 3 green pea pods (Gg or GG): 1 yellow (gg)

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4 0
3 years ago
A series of two-point crosses among fruit flies is carried out between genes for brown eyes (bw), arc wings (a), vestigial wings
Stels [109]

Answer:

E) bw 5 a 24 cv 13 vg with e assorting independently

Explanation:

Due to technical problems, you will find the complete explanation in the attached files  

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8 0
2 years ago
Which of the following is true about the speed of light?
Arte-miy333 [17]

Answer:

<em>It is a constant when the light is traveling in a vacuum.</em>

Explanation:

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