Which systems help an organism maintain its structure and shape? A. skin and nervous systems

B. skeletal and muscular
systems

C. endocrine and digestive systems

D. muscular and excretor systems

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?

What do transitional fossils best support?

Introducing minvasive species to an ecosystem results in an increase in biodiversity is it true or false