Biology HW help a, b, c ,d

Which level of consumer had access to the smallest apply of energy

Asap brainliest will be which sentence about protists is accurate? all protists are unicellular and microscopic in nature. they have organelles, so protists are eukaryotic in nature. all protists make their own energy through photosynthesis.

How can an organ, such as the lungs, work for multiple body systems?