Answer:
The bottom one shows how the circulatory system of a fish functions.
With an insoluble outer layer which remains in the cell where it is formed until the energy is needed
Answer:
D
Explanation:
When a population is genetically diverse there is a higher probability for some individuals in that population to survive during harsh conditions such as drought due to their highly resistant genes.
Answer:
Energy that is not used in an ecosystem is eventually lost as heat. Energy and nutrients are passed around through the food chain, when one organism eats another organism. ... In each case, energy is passed on from one trophic level to the next trophic level and each time some energy is lost as heat into the environment.
The Taiga biome is the largest on Earth, characterized by low temperatures, thin, young soil, and limited plant species
