Which of the following occurred first in the creation of the moon ?
a) lava flows formed maria
b) earth and a planetesimal collided.
c) the moon became geologically inactive.
d) bombardment by meteoroids formed the highlands.

Gregor mendel was the first scientist to use statistics to analyze scientific data before mandel's experiments, scientists believed that organisms acquired traits from their environment and pass them on to their offspring after mendel's discoveries were accepted scientists realized that traits passed to offspring were the result of genes being passed from parent to his parents this is an example of

Which enzymes break down carbohydrates?

Match the reproductive structures based on their function and the system to which they belong. egg ovary sperm vas deferens vagina fallopian tube testis urethra