The heart is part of which organ system? Muscular

Cardiovascular

Skeletal

Digestive

Microorganisms aren’t all decomposers; in fact, many act as producers or primary consumers in an ecosystem. how do microorganisms that act as producers benefit the rest of an ecosystem in terms of energy transfer? what about microorganisms that act as primary consumers?

What do scientists need to look at before developing an argument

Which identifies the main purpose of biological taxonomy?