D. Eukaryotic cells It happens in both plant and animal cells
Answer: Depends on where you live, in the U.S. its considered unconsitutional, but in other countries such as china, goverment offcials in bioharzard suits can take you.
Explanation:
excretory system: removes waste from blood.
respiratory system: obtains oxygen so the energy in the nutrients can be extracted.
circulatory system: transports nutrients from small intestine to the othet tissues.
nervous system: regulates and controls digestive functioning.
( Am not completly sure, but i think this is the answer)
Answer:
Less energy is available to the upper trophic levels.
Ribosomes. Ribosomes which synthesize proteins are found in the rough endoplasmic reticulum.
