Basic Biology?

Question

29. An amniotic egg first evolved in

fish.

reptiles.

echinoderms.

birds.

39. Which feature is NOT shared by members of the phylum Chordata?

a tail

gill slits

a notochord

a water vascular system

46. If CFCs were banned by all countries,

acid rain would be eliminated.

destruction of the ozone layer would stop quickly.

photochemical smog would be reduced in large cities.

chlorofluorocarbons already in the atmosphere would continue to destroy ozone for another century.

49.Two categories of the flowering plants called angiosperms are

conifers and cycads.

monocots and dicots.

mosses and liverworts.

mold and mildew.

Answer 1

29 reptiles

39 a tail

46 it is BS but the answer is probably the last one since it wouldn't stop quickly.

49 monocots and dicots

Answer 2

webassign?

Hahaha.....