The answer for this question should be c because an ecosystem is. Agrassland
This is more of a personal question about how well you know yourself, no one can answer this for you.
<span>Homologous chromosomes exchange DNA during meiosis in a process called crossing-over. Crossing-over sometimes involves an unequal swapping of DNA. Basically one chromosome in the pair gets extra DNA.</span>
1) 2 (or 3?)
2) 3
3) 1 or 2?
4) wave 2
5) wave 3
6) the number of occurrences in a period of time
7) the more wavelengths in the shorter amount of time, the higher the frequency