(Q).
If genes link together to form a chain, then what do genes do to form a chain? Answer choices: - interact - spread flower seeds - Break apart - Link together - reproduce - Duplicate - Break down - It expands
(A).
Link together

(Q).
If amold spore has a negative impact on breathing, then mold spores have what impact on breathing? Answer choices: - neutral - ambiguous - symptoms - motility - positive - dangerous - negative - uncontrolled
(A).
negative

(Q).
If cells cannot survive without O2, then what is something cells cannot survive without? Answer choices: - gas - Air - O2 - CO2 - Ca - O3 - Fe - He
(A).
O2