A carbon atom has 4 valence electrons
The seeds are enclosed because it's the plants way of protecting them.
<span>The answer is A. Variation in gene pool
Speciation is a formation of a new species during the evolution line.
When there is a variation in a gene pool, a unique combination between genes could be formed during the mating process. This will create an offspring with unique gene pool that will lead to speciation</span>
Answer:
Enzymes can only be used once
Explanation:
Enzymes are there forever
