will mark brainliest-what have scientists learned from fossils that have been discovered since darwin's time

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 type of respiration takes place when there is no oxygen present

What is the difference between a scientific hypotheses and a scientific theory?