what makes up the biotic evvironment of a mountain
state the producers, primary consumer, secondary consumer and tertiary consumer in the food chain.
give examples of a food chain with four links
give an example of a food chain show
describe three factors that make up the physical environment of a tropical rain forest
state the producers, primary consumer, secondary consumer and tertiary consumer in the food chain
state the producers, primary consumer, secondary consumer and tertiary consumer in the food chain
explain why pyramids of biomass and energy are broad-based and of pyramid shape
is energy in an ecosystem recycled? explain your answer please
name two producers in a marine food web