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kolbaska11 [484]
3 years ago
13

What is the most important law passed to deal with air pollution? A. Comprehensive Environmental Response, Compensation, and Lia

bility Act B. Clean Air Act C. Clean Water Act D. Resource Conservation and Recovery Act
Biology
2 answers:
mixas84 [53]3 years ago
3 0
The answer to your answer is b
kirill115 [55]3 years ago
3 0

clean air act is the answer hope this helps you

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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
stars of average mass, such as our sun, undergo fusion. what is the most massive element that can result from this process
Gennadij [26K]
It depends on the life stage that the star is in. Currently, in the mid-life stage, the sun is still fusing hydrogen into helium, so the maximum here is helium; however, far in the future when the star is nearing its final days, it can fuse atoms into elements as heavy as iron and nickel.
5 0
3 years ago
Humans have a thyroid gland that uses lodine to produce hormomes for the body. Since our bodies do NOT make lodine the cells hav
astra-53 [7]
I thinks it’s active transport
8 0
3 years ago
Liverworts are _______ plants with flattened, leaf-like bodies.<br><br>A. Rooted<br>B. Rootless
Nonamiya [84]
She is correct it is b
4 0
3 years ago
Salts and sugars work to preserve foods by creating a
Ne4ueva [31]

Answer: Hypertonic Environment

Explanation:

The salt solution and sugar solution is used for the process of food preservation as the bacteria and microorganism are not able to grow in such conditions that is being created by the solution.

The amount of the solute is more and the solution is less concentrated. The bacteria cell has less solutes and more solvent.

As per osmosis the water from the salt or sugar solution moves out from bacterial cell shrinks and dies.

This is how the bacterial cell dies and the food is prevented from spoilage.

7 0
3 years ago
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