Hello!
The smallest unit of matter is an atom, and the only option with an atom first is C, so a good test taking skill is to do something like that.
Organisms are made of cells, which are made of molecules, which are made of atoms.
The answer is C
Hope this helped!
A substitution is a mutation that exchanges one base for another (i.e., a change in a single "chemical letter" such as switching an A to a G). Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced. ... These are called silent mutations.
A encyclopedia a magnize article the science clubs website a newspaper
Angiosperms have seeds that are enclosed within an ovary (usually a fruit), while gymnosperms have no flowers or fruits, and have unenclosed or “naked” seeds on the surface of scales or leaves.
Gymnosperm seeds are often configured as cones.