In a class, mammalian has the three descendants: monotreme, marsupials, and eutheria. what will these three descendants together be called?
a. twin groups
b. nodes
c. sister groups

Grignard reactions are highly exothermic and are performed in ether solvent. there is a real risk of fire during this reaction. in the case that a fire should occur in your distillation apparatus, what is the best course of action? g

This is a coral reef ecosystem. many biotic and abiotic factors affect the health of this ecosystem. which set correctly pairs a biotic factor and an abiotic factor?

What are characteristics of minerals? select 3 choices