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charle [14.2K]
4 years ago
9

What are rocks made of?

Biology
1 answer:
kicyunya [14]4 years ago
6 0

Answer:

Almost all rocks made of minerals, but different rocks contain different mixtures of minerals.

Explanation:

Rocks are composed of grains of minerals, which are homogeneous solids formed from a chemical compound arranged in an orderly manner. The aggregate minerals forming the rock are held together by chemical bonds.

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Verizon [17]
The answer is C hope it is helpful
6 0
3 years ago
A particular plant has 10 pairs of chromosomes in each cell. For each of the plant's gametes, how many genetic combinations are
Law Incorporation [45]

Answer:

C. 1,024

The answer can be worked out using 2^pairs of chromosomes

Explanation:

Imagine there were <u>two</u> pairs of chromosomes:

  • A paired with B
  • C paired with D

A gamete could have the following combinations:

  • A + C
  • A + D
  • B + C
  • B + D

Therefore, with two pairs of chromosomes, there are 4 (2²) possibilities

Now, Imagine there were <u>three</u> pairs of chromosomes:

  • A paired with B
  • C paired with D
  • E paired with F

A gamete could have the following combinations:

  • A + C  + E
  • A + D + E
  • A + D + F
  • A + C + F
  • B + D + F
  • B + C + F
  • B + C + E
  • B + D + E

Therefore, with three pairs of chromosomes, there are 4 (2³) possibilities

For 10 chromosomes - there are 2¹⁰ possibilities. 2¹⁰ = 1024

3 0
4 years ago
Which is a function of the nervous system? Select all that apply.
bekas [8.4K]

Answer:

The nervous system transmits signals between the brain and the rest of the body, including internal organs.

Explanation:

3 0
3 years ago
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What situation might develop in a population having some plants whose flowers open at midday and other plants whose flowers open
Kay [80]

Complete question: What situation might develop in a population having some plants whose flowers open at midday and other plants whose flowers open late in the day?

a. Temporal isolation

b. Geographic isolation

c. Behavioral isolation

d. Genetic drift

Answer:

a. Temporal isolation

Explanation:

Temporal isolation is one of several mechanisms of reproductive isolation. Temporal isolation occurs when some organisms of a population exhibit different timing of reproductive maturity. It also occurs when some members of a population reproduce at a different time from the others. This does not allow interbreeding between them.

When plants of a population open flower at a different time of day, cross-pollination would not occur between these plants. This represents temporal isolation.

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3 years ago
Help asap <br> 6th grade science
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Answer:

true.......

Explanation:

.........

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