The process used to scientifically study ideas and objects is known as the . *scientific methodscientific modelscientific processscience fiction

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

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.

The first amino acid of a new polypeptide chain is