Why did Paul Newman still feel concerned after the study of the ozone?
А
because the Montreal Protocol will change
beginning next year
B.
because some places still use CFCs and
other harmful chemicals
С
because the ozone hole reaches its peak in
September and October
D
because atoms can combine with other atoms
to form molecules

C

Explanation:

C

c

Explanation:

the answer to your question is sperm

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands