Answer:
Solid Liquid gas and plasma
Explanation:
These are characteristics of matter
Each chromosome contains one molecule.
A) One species always outcompetes the other until only one species remains.
Answer:
Force
Explanation:
Because velocity is quickness of speed and motion is like moevement, force is like the ammount of pressure. This is why the answer is force.
Answer:
The correct answer is None of these choices are correct.
Explanation:
Crossing over doesn't occur only between heterozygous genes, it also doesn't happen only in some chromosomes and it never reduces de variation, otherwise, the crossing over is one of the main causes of variation among species.