what are passed up a food chain or web from lower to higher trophic levels?
calories Light atmosphere DNA heat fossil fuels animals photons
A B C D E F G H
Calories are units of energy.
calories are passed up a food chain or web from lower to higher trophic levels
what are passed up a food chain or web from lower to higher trophic levels? (A) calories (B) Light (C) atmosphere (D) DNA (E) heat (F) fossil fuels (G) animals (H) photons