Adiagram shows embryo developed of four different animals. how is this evidence used to suggest that life changes over 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.

Explain the significance of thesaurus geographicus

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca