If passive immunity diminishes with time, then passive immunity decreases with? Answer choices: - ozone depletion - edema - passive-aggressive behavior - stellar implosion - stress - HIV - time - death
time

(Question)
If many carnivores feed at more than one trophic level, then many what feed at more than one trophic level? Answer choices: - roots - humans - carnivores - cacti - animals - people - algae - plants
(Answer)
carnivores

Ques: If conserving resources lowers pollution, then how do you reduce pollution? Answer choices: - igniting fuel and oxidiser - transportation technology - wasting - not recycling - burning fossil fuels - converting electricity to heat - water conservation - using less resources
Ans: using less resources

(Q).
If aplant requires nutrients for survival, then what do plants require nutrients for? Answer choices: - growth - water vapor - ice - Energy. - bloom time - survival - Energy - hurricanes
(A).
survival

Ques:If sand dunes can be formed by pressure differences, then sand dunes can be formed by? Answer choices: - air mass over Earth's surface - movements in the earth's crust - The bending of a ray of light - Movement of an air mass - pressure differences. - Physical weathering - looseness of dirt or compost - remains of prehistoric life

Ans:pressure differences.

If courtship is behavior exhibited by foxes, then what exhibits courtship as a behavior? Answer choices: - ducks - h2o - clouds - toads - bacteria - insects - foxes - animals
foxes