Which two traits of some mammals are adaptations for living in a very cold, snowy environment?
A. White fur that blends in with snow
B. Brown fur that blends in with bare soil
O C. Pink skin that has no fur
D. Black skin that absorbs heat

Which prevent errors in dna replication? a. helicase enzyme checks the dna for errors. b. each base can attach to only one other type of base. c. ribosome enzymes prevent errors from happening. d. dna contains no complementary base pairs.

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Which gas found in the earth's atmosphere greatly impacts the daily range of temperature on earth. a) oxygen b) hydrogen c) nitrogen d) water vapor