A(n) is all living organisms in an area functioning together with nonliving factors of the environment.
a. population
b. ecosystem
c. communities
d. producers

Explain two reasons you think it is important for scientists to search for new ways to treat cancer

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

Select the correct answer from each drop-down menu proteins are