How many total electrons can be contained in the 4f sublevel?

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

Sharks depend on production for survival

The term autotroph refers to an organism that: a. uses co2 for its carbon source. b. must obtain organic compounds for its carbon needs. c. gets energy from sunlight. d. gets energy by oxidizing chemical compounds. e. does not need a carbon source