Question

1. which kind of niche takes competition between organisms into account? 14. how much chemical energy is transferred from the producer level to the secondary consumer level in a food chain?

Explanation:

1. Interspecific niche - when different species compete for resources in the same niche. Intraspecific niche - when individuals of the same species compete. Interspecific competition often accounts for competition between organisms in terms of resource - sharing and habitat use among different species.
2. In a food chain, only about 10% of the chemical energy is transferred from one trophic level to the next. So from the producer level to the secondary consumer level (passing through the primary consumer level), if producers have 100% energy, primary consumers get about 10%, and secondary consumers get about 1% of the original producer - level energy.

Answer:

1. Interspecific niche competition often accounts for competition between organisms.
2. About 1% of the chemical energy is transferred from the producer level to the secondary consumer level in a food chain.