Answer: reproduction, heredity, variation in physical characteristics and variation in number of offspring per individual.
Explanation:
B) oxygen
Respiration is defined as the movement of oxygen from the outside air to the cells within tissues
Skin cream,lotion,some gels that is all that i know of
Answer:
The higher you go, the lower the air temperature gets
Explanation:
Answer:
D
Explanation:
Extracting DNA involves firstly harvesting the required cells (such as from the inside of cheeks), then the cells are broken up using enzymes or detergents. The products (usually a mixture of cell products –mainly RNA, DNA, and proteins) are then put in a centrifuge to separate the proteins from the DNA.
