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ICE Princess25 [194]
3 years ago
10

QUESTION 8

Biology
2 answers:
OlgaM077 [116]3 years ago
5 0

The fossil record is used to divide Earth's history into geologic time periods. The figure below shows the four major subdivisions of geologic time—eons, eras, periods, and epochs. Eons are the longest subdivision and are based on the abundance of certain fossils. Eons are divided into smaller time periods called eras
BlackZzzverrR [31]3 years ago
5 0
Fossil era and that’s all Ik
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FOLLOW DIRECTIONS please it would really help. PLEASE HELP ASAP!!
Zinaida [17]

Answer:

A.SUN

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Explanation:

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prohojiy [21]

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Species A has a diploid number of 42 chromosomes, while species B has a diploid number of 48 chromosomes. Give the chromosome nu
Arada [10]

Answer:

a. autotriploid of species A: 63 chromosomes

b. autotetraploid of species B: 96 chromosomes

c. allotriploid from species A and B: 1) 66 chromosomes and 2) 69 chromosomes

Explanation:

<u>For a.</u>

this species will have 3 haploid sets of chromosomes ('tri' means 3)

one haploid set = 21

21 × 3 = 63 chromosomes

<u>For b.</u>

this species will have 4 haploid sets of chromosomes ('tetra' means 4)

one haploid set = 24

24 × 4 = 96 chromosomes

<u>For c.</u>

there are two ways to do this:

1) two sets of chromosomes from species A and one from species B

42 + 24 = 66 chromosomes

2) one set of chromosomes from species A and two from species B

21 + 48 = 69 chromosomes

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5 0
3 years ago
A - DNA as the inheritance materials B - RNA as the inheritance materials C - The formation of organic molecules, e.g. nucleic a
Stels [109]

EXPLANATION:

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ii) a five-carbon sugar

iii) at least one phosphate group.

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3 years ago
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Answer:

you have to include a picture

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