1 In the movie, Tim says that genetic
mutations are permanent changes to DNA
or RNA. What does this mean?
A
The changes are minor.
B
The changes can't be undone.
C
The changes are major.
The changes can be undone.

Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand

What does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms

Name the organism that belongs to the kingdom protista.