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Softa [21]
2 years ago
8

Living organisms do not play a role in the water cycle. True or False?

Biology
1 answer:
tester [92]2 years ago
5 0

Answer:

True.

Explanation:

The water cycle does not exclusively need life to function. The water cycle consists of 3 steps in any given order:

1. Water falls to the surface.

2. Water evaporates from the surface.

3. Water condenses into clouds in the atmosphere.

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In Drosophila, vestigial (partially formed) wings (vg) are recessive to normal long wings (vg+) and the gene for this trait is a
Marina CMI [18]

Answer/ Explanation:

a. The genotype of a homozygous white eyed long winged female would be Vg+Vg+XrXr. We denote the white allele as recessive (r) because the XY male only has one copy and yet has red eyes, so the red eye trait (R) must be dominant. A homozygous red eyed vestigial winged male would have be VgVgXRY. The possible gametes for the female are Vg+Xr only. For the male, the possible gametes are VgXR or VgY

The attached punnett square shows the results of the cross. The females will all be Vg+VgXRXr. The males will all be Vg+VgXRY (must inherit Y from father). That means they will all  have normal length wings, the males will have white eyes and the females will have red eyes.

b. The F2 flies arise from intercrossing the F1, so the cross will be Vg+VgXRXr x Vg+VgXRY. The possible gametes for the mother are: Vg+XR, Vg+Xr, VgXR or VgXr. The possible gametes for the father are Vg+Xr

, Vg+Y

, VgXr

, VgY

. The attached punnet square shows this cross. The ratio of the phenotypes will be 6:6:2:2, or 3:3:1:1 (long-winged red eye: long-winged white eye: vestigial wing red eye: vestigial wing white eye), genotypes shown in the attachment.

c. F1 cross back to the mother would be Vg+VgXRY x Vg+Vg+XrXr. The genotypes are shown in the attached punnet square. The offspring will all be long-winged with white eyes. The F1 to the father would be Vg+VgXRXr x VgVgXRY. The ratio would be 3:3:1:1 long-winged red eye: long-winged white eye: vestigial wing red eye: vestigial wing white eye

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7 0
3 years ago
Is composed of individuals who are separated geographically but linked by communications technology?
stealth61 [152]
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</span>

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The answer is true because the top of the list would be the selection sorr
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A mutation that involves one or a few nucleotides is called: mutagen,inversion,point mutation,translocation
Licemer1 [7]
The answer is point mutation
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What statements below explain why buffalo populations have evolved to utilize group behaviors? CHOOSE ALL THAT APPLY.
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Answer:

Baby buffalo are typically protected by putting them i the center of the herd so that future generations can survive. Buffalo groups stay together because there is safety in a number.

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