forming a very small remnant of something that was once much larger or noticeable
What's vestigial?
100
the study of similarities and differences in the anatomy of different species
What is Comparative anatomy?
100
a group of atoms bonded together, representing, the smallest fundamental unit of a chemical compound
What is a Molecule?
100
a group of organs that work together to perform a specific job in the body
What is the organ system?
200
a ensemble of similar cells from the same origin that carry out a specific function
What is a tissue?
200
pair of organs situated within the rib cage, consisting elastic sacs with branching passengers
What are lungs?
200
an instrument for measuring the speed of wind, or any gas
What is a anemometer?
200
the passing of traits from parent to offspring
What is heredity?
200
the paired respiratory organ in some fishes and some amphibians, by which oxygen is extracted from water flowing over surfaces within or attracted to the walls of the pharynx
What are gills?
300
a distinguishing quantity that can be passed form parent to offspring