In adults, stem cells remain undifferentiated until they are needed to repair or replace other cells. stem cells can produce cells that are
i. identical to themselves.
ii. more specialized than themselves.
iii. less specialized than themselves.

Which process can increase the rate of greenhouse gas emissions into the atmosphere in response to a decrease in albedo

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

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.