Which is the following is located in the stratosphere?

a. weather
b. the ozone layer
c. uv rays
d. birds

2. in dragons, a gene on chromosome 1 codes for wing color and a gene on chromosome 2 codes for body color. draw out the stages of meiosis for these two chromosomes from a dragon that is heterozygous for both traits. define your alleles. what are all the possible allele combinations of the gametes produced?

The body is protected against harmful flu viruses by

Aperson with age is more likely to catch diseases that healthy people usually don’t catch. what are these infections called?