Which of the following genotype(s) would be considered 'purebred'
a. homozygous dominant
b. homozygous recessive
c. heterozygous
d. both a and b
e. codominant

Gabriel is at a stage where his body is changing physically; he is growing facial hair and building muscle. he is also just starting to make sperm. what is most likely gabriel’s age? 5 12 17 21

What is the cause hearing loss in human being

Which of these is a provisioning service people get from the ocean