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3 years ago

The first eukaryotes evolved 2.5bya. A.True B. False

Biology

1 answer:

faltersainse [42]3 years ago

5 0

It would be A. True. I hope this helped you. Have a good afternoon

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You are the only person on the scene of an accident involving a child. you need to call 9-1-1 or the local emergency number, but

Arada [10]

I may be wrong but i think it is B. <span>call 9-1-1 or the local emergency number quickly, then return to give care to the child.
I hope this is right</span>

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4 years ago

What is the relationship between a chromosome and DNA?

igomit [66]

C is the correct answer

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3 years ago

Answers: A,B,C,D. A,C,B,D.

Paul [167]

Answer:

Explanation:

ABDC is the correct answer

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3 years ago

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Cycloalkanes are _____.

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Cycloalkanes are saturated hydrocarbons with monocyclic structure. <span>This means that cycloalkanes contain hydrogen and carbon atoms arranged in a structure containing a single ring (sometimes with side chains), with all of the carbon-carbon bonds single. The examples of cycloalkanes are cyclopropane, cyclobutane, cyclopentane, cyclohexane…</span>

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3 years ago

Read 2 more answers

In cats, curled ears result from an allele, Cu, that is dominant over an allele cu, for normal ears. Black color results from an

just olya [345]

Answer:

Explanation:

Cross : ggCuCu X GGcucu --------Parents

F1 progeny : GgCucu

Two of the F1 cats mate :

Cross : GgCucu X GgCucu

Gametes :

Gg X Gg = GG, Gg, Gg, gg

Cucu X Cucu = CuCu, Cucu, Cucu, cucu

1/4 GG X 1/4 CuCu = 1/16 GGCuCu (black - curled ears)

1/4 GG X 2/4 Cucu = 2/16 GGCucu (black - curled ears)

1/4 GG X 1/4 cucu = 1/16 GGcucu (black - normal ears)

2/4 Gg X 1/4 CuCu = 2/16 GgCuCu (black - curled ears)

2/4 Gg X 2/4 Cucu = 4/16 GgCucu (black - curled ears)

2/4 Gg X 1/4 cucu = 2/16 Ggcucu (black - normal ears)

1/4 gg X 1/4 CuCu = 1/16 ggCuCu (gray - curled ears)

1/4 gg X 2/4 Cucu = 2/16 ggCucu (gray - curled ears)

1/4 gg X 1/4 cucu = 1/16 ggcucu (gray - normal ears)

Answer : (i). 9/16 black cats, curled ears; 3/16 black cats, normal ears; 3/16 gray cats, curled ears; and 1/16 gray cats, normal ears.

An F1 cat mates with a stray cat that is gray and possesses normal ears :

Cross : GgCucu X ggcucu

Gametes :

Gg X gg = Gg, Gg, gg, gg

Cucu X cucu = Cucu, Cucu, cucu, cucu

2/4 Gg X 2/4 Cucu = 4/16 GgCucu (black - curled ears)

2/4 Gg X 2/4 cucu = 4/16 Ggcucu (black - normal ears)

2/4 gg X 2/4 Cucu = 4/16 ggCucu (gray - curled ears)

2/4 gg X 2/4 cucu = 4/16 ggcucu (gray - normal ears)

Answer : (i). 1/4 black cats, curled ears; 1/4 black cats, normal ears; 1/4 gray cats, curled ears; 1/4 gray cats, normal ears.

6 0

4 years ago