Which trophic level contains the most amount of biomass in an ecosystem?

Urgent. the table shows the relative blood flow through some organs in the human body that is, the percentage of blood that flows through a given organ, through which organ(s) does all the blood flow? explain the effect of exercise on blood flow to skeletal muscles.

What is a general feature of a species that varies from one individual to the next (skin tone,eye color or hair color)? a.organism b.trait c.character

What do well call it when two or more genes determine an organisms trait? a.polygenic b.controlled by one gene c.mutated