If antibodies can infect and destroy helper T cells, then what can infect and destroy helper T cells? Answer choices: - tissues - anemia - antibodies - cigarettes - flagella - Chemical energy - vipers - adding heat
antibodies

(Question)
If weathering comes from cycles, then what causes ice wedging? Answer choices: - Metling snow - Condensation - The sun - friction - Gravitational pull - mechanical - Weathering - Animals
(Answer)
Weathering

Ques: If animals require food to move, then what do animals require to move? Answer choices: - babies - food - warmth - air - oven - heat - oxygen - children
Ans: food

(Q).
If some parasites are beneficial to humans, then some what are beneficial to humans? Answer choices: - fungi - parasites - roots - humans suffering - natural disasters - honeybees - poisons - orchids
(A).
parasites

Ques:If the ideal habitat for new stands of cottonwood require sediment, then what is required for the ideal habitat for new stands of cottonwood? Answer choices: - sunlight - nutrients - warmth - Sediment - Black tar - Hot magma - trees - Chainsaws

Ans:Sediment

Ques: If cancer can have a negative impact on survival, then what can cancer have? Answer choices: - nucleus of a cell - a lot of human deaths - Short term wealth - decreased differentiation - Positive impact - death and devastation - Negative impact on survival - children
Ans:
Negative impact on survival