B to T (3)

a group of living things that can mate with one another but not with those of other groups

to feel great sadness; mourn

someone/something that lives in a particular type of place

a precious stone that has been cut and polished, or a pearl of high quality; jewel

to copy the actions of; try to be like

lost in thought and unaware of one's surroundings or actions

an individual living thing, such as a plant, an animal, or a germ

much smaller than other things of the same kind

to separate something into parts that it is made up of

uneducated in general; lacking knowledge or sophistication

having a preference, disposition, or tendency

the act or process of thinking, wondering, or guessing about something