Egg and sperm cells are each because they fertilize each other to form a zygote with a complete human genome haploid
diploid
tetraploid
somatic cells
germ cells

Which type of respiration takes place when there is no oxygen present

Select the correct answer.what is the observable characteristic of a person called? o a. genotypephenotypeoc.alleleo d.gene

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems