The answer is D.
hope it helps:)
I believe temperature is the answer
Fossils can be used by examine their analogous structures...... give him Brainliest
Answer:
But hinnies and mules can't have babies of their own. They are sterile because they can't make sperm or eggs. They have trouble making sperm or eggs because their chromosomes don't match up well. ... A mule gets 32 horse chromosomes from mom and 31 donkey chromosomes from dad for a total of 63 chromosomes
Stone tools we’re first used around 3,300 BCE
