A lack of blood flow determines the number of cell layers that can
survive when they are transplanted
Explanation:
1 chemical reaction endothermic
2 physical change. exothermic
3 chemical reaction endothermic
An allele is a variant form of a gene. some genes have a variety of different forms,which are located at the same position, or genetic locus, on a chromosome.
Answer: c. It is the first hominin known to have migrated out of Africa.
Explanation:
The Homo erectus were the ancient humans which are considered to be over first relatives which used to have human like body shape, short arms and long legs relative to their torso. The main unique feature about these humans is that these were the first humans which migrate out of the Africa and they were the first humans who starting cooking of food for the first time.