B. only 3% of water on earth is fresh
Its chemical energy hope dis helps
I think this is ether b. Trait or C. Allele, pretty sure it’s allele though. Good luck!
Answer:
At the second stage the cell differentiation is start.
Answer:
trophic level
Explanation:
The energy pyramid indicates how energy is transferred from one organism to the next on the food chain. There are four main levels, starting at the base with producers that take energy from the sun, and moving upward to primary, secondary and tertiary consumers. The pyramid of numbers represent the number of organism in each trophic level.
