Need help will give brainliest its timed

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.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Autonomous underwater explorers will be used to gather large-scale ocean information select the best answer from the choices provided ot