Условием для существования аэробов явилось: Select one:

a.
накопление в атмосфере кислородно-азонового экрана

b.
появление органических веществ биогенного происхождения

c.
появление бескислородного бактериального фотосинтеза

d.
появление анаэробных гетеротрофов

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.

The law of thermodynamics states that energy can't be created or destroyed. to natural sources of energy on earth are the

Which chemical reaction shows photosynthesis? a. water + carbon dioxide + sunlight → oxygen + glucose b. carbon + oxygen → carbon dioxide c. hydrogen + oxygen → water d. nitrogen + hydrogen → ammonia