Biology, 05.02.2020 13:53 elenagarcia123
The oxygen revolution changed earth’s environment dramatically. which of the following adaptations took advantage of the presence of free oxygen in the oceans and atmosphere? a. the evolution of cellular respiration, which used oxygen to harvest energy from organic molecules. b. the evolution of chloroplasts. or c. the persistence of some animal groups in anaerobic habitats.
Answers: 2
Biology, 22.06.2019 00:00, mitetwojr
An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.
Answers: 1
Biology, 22.06.2019 05:20, kay3940
The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis
Answers: 3
The oxygen revolution changed earth’s environment dramatically. which of the following adaptations t...
English, 16.10.2019 22:00