If cell walls relax and increase the flow of blood, then cell walls relax and increase the flow of what? Answer choices: - heat - sugar - saliva - blood - oxygen - Air - semen - water
blood

(Question)
If plants and animals use lipids to store energy, then lipid stores are used by plants and animals for what? Answer choices: - energy. - liver - glycoproteins - survival - energy - growth - blood sugar - food
(Answer)
energy

Ques: If eating something that contains lead has a negative impact on an organism 's survival, then eating something that what has a negative impact on an organism 's survival? Answer choices: - contains water - Smoking - contains fiber - contains nutrients - harmful substances - influenza - Pesticides - contains lead
Ans: contains lead

(Q).
If fossil fuels are formed with help from Decomposers, then fossil fuels are formed with help from? Answer choices: - consumers - burning - heat energy - producers - scavengers - Decomposers - Greenhouse gases - vehicles
(A).
Decomposers

Ques:If the emission of SO2 causes acid rain, then the emission of what causes acid rain? Answer choices: - H2O - smoke from food - Hydrogen - coal - SO2 - oil - CFCs - Cars

Ans:SO2

If procreation increases genetic diversity, then what increases genetic diversity? Answer choices: - mutations - getting married - gene flow - dating - bushes - mitosis - procreation - flowers
procreation