Answer:
4.Only DNA serves as the master copy of an organism's genetic code which must be replicated by unzipping and base pairing before the cell divides.
Answer:
A. Air
Explanation:
Abiotic factors are things that are not living.
Air can be found in a rain forest ecosystem, as it can be found in all ecosystems, but it is not living.
On the other hand, algae, flowers, and animals are biotic instead of abiotic because they are living things.
So, A is the correct answer.
When pieces of the granite get broken off and carried to a new place by weathering and erosion, the pieces can get deposited in the bottom of a lake or sea. Over time the sediments get compacted and cemented together to become sedimentary rock. Sandstone, limestone, and conglomerate can form this way.
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Answer:
1. 100%
2. 0%
3. impossible
All their offspring will have brown eyes because they will all inherit the <u>dominant </u>allele for brown eyes. They will all inherit the allele for blue eyes but since this is recessive they will now show it.
Answer:

Option B is correct.
Explanation:
There are <u>thousands</u> of proteins and only 20 amino acids.
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