The letter A indicates: . 1. Globules containing eight subunits each. 2. A filamentary structure forms two turns around each globule. 3. Letter A marks the filamentary structure between the globules. 4. Letter B marks one of the globules. 5. Letter C marks one subunit of the globule.

Explanation:

the right answer is a. skin cells forming from sunlight.

the liver is an organ endowed with a fantastic ability to regenerate

. thus, if a hepatectomy (ablation) of 70% of the hepatic mass is performed in the rat, there is complete recovery in 7 to 10 days.

prokaryotes are beings that have existed since the existence of life on earth, and do not come from another realm.

ribosomes are organelles that exist naturally in eukaryotes, either in free form or attached to the endoplasmic reticulum.

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the answers are a and c