Which statement best describes an aerobic heterotroph

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

Living cells cannot use heat to provide the activation energy for biochemical reactions because which choice(s) complete the sentence correctly? a) answer choice ii. eliminate b) answer choices ii and iv. c) answer choice iii and iv. d) all answers can complete the sentence.

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16