True or false producers are organisms, mainly animals, that must eat other organisms to obtain nutrients

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

Jane is blood type a her husband is blood type b. jane is puzzled because their daughter is type o. explain how the daughter inherited a blood type that neither of her parents had explain your answer