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monitta
3 years ago
8

What evidence places fish as the first vertebrates​

Biology
1 answer:
Whitepunk [10]3 years ago
7 0

Answer:

Fossils

Explanation:

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7. What weather element (temperature, humidity, precipitation, air pressure, wind, and visibility)
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air temperature, air pressure, humidity of the air, amount and kind of cloud cover, amount and kind of precipitation, and speed and direction of the wind.

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2 years ago
Please help me define this <br><br> I’m stuck for hours please....
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A. organ..    B.  Species

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1. parts that make up organism are called as organs

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6 0
3 years ago
Read 2 more answers
A man and his wife both have normal color vision, however their daughter is positive for red-green color blindness. The man sues
mixas84 [53]

Answer:

Man's genotype: XᴮY

Woman's genotype: XᴮXᵇ

Daughter's genotype: XᵇXᵇ

The daughter is not the man's child.

Explanation:

Color blindness is a sex-linked trait caused by a recessive allele located in the X chromosome (Xᴮ=normal vision; Xᵇ-color blind).

Women have two X chromosomes, while men have an X and a Y chromosomes. For that reason, women need to have two recessive alleles to be color blind, while men only need one Xᵇ to be colorblind.

Since the man has normal color vision, his genotype would be XᴮY.

If the daughter is her father's, she would have inherited his dominant Xᴮ allele, so she would have normal vision. However, she is colorblind, so her genotype is XᵇXᵇ. She is not the man's daughter.

The mother also has normal color vision, but her daughter inherited a recessive allele from her, so her genotype is heterozygous XᴮXᵇ.

3 0
2 years ago
What are two crucial functions of the carbon cycle?
Stolb23 [73]
A. Keeps carbon dioxide from escaping atmosphere
and slows diffusion
B. Prevents bicarbonate formation and slows
photosynthesis
C. Provides fossil fuels and recycles carbon dioxide
D. Prevents carbon dioxide from entering
atmosphere and dissolves fossil fuels










8 0
2 years ago
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