Which of the following scenario demonstrates apoptosis? 1. An immune Self-destructs once it is no longer needed by the immune system

2.a severe burn causes skill cell to die

3.webbing between an embryos toes is eliminated during embryological development

4. Muscle fibers are signaled to contract and move

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?

What are the fixed alleles in the human species? o a. the alleles that are on the most chromosomes b. the alleles that change most often 000 c. the alleles that no one has d. the alleles that everyone has