Answer:
I think the answer will be c..
Answer
C) Viruses need a host to survive
<span>a. chromosomes hope that helped I'm doing the same quiz.</span>
LeveneChargaffWatson and CrickNirenberg and Matthaei
Answer:
A bottom-up system concentrates attention on how resources (space and nutrients) influence higher trophic forms , whereas a top-down system focuses on interactions at top level consumers (predators) and their prey influence on lower trophic forms.
Explanation:
hope it helps you !
