The smallest units of matter made up of protons neutrons and electrons units of matter made up of protons neutrons and electrons

A. Cells

B. Atoms

C. Biomes

D. Molecules

At its peak, the Roman Empire encompassed a land area that included present-day A. China B. Poland C. Spain

Which best describes work? a. holding a pencil b. lifting a feather c. dropping a ball

If a cow develops a preference for eating white four o'clock flowers and ignoring pink and red four o'clock flowers, what type of selection is being demonstrated?

In humans carbon dioxide that is excreted passes from the blood directly into the?

An ___ ___ is observed due to the unequal transport of charge by a transport mechanism that occurs across a plasma membrane.

True or false? biologists studied the effects of forest fragmentation by calculating the difference between the amount of plant biomass in the edges of forest fragments and the interiors of unfragmented forest.

This is an organ in the digestive system which transports waste out of the body and absorbs water from the waste before it leaves the body.

Which two actioms happens when bonds in ATP moecules are broken

Explain how inherited cancer alleles can lead to a predisposition to certain cancers.

Which organelle is responsible for poviding a barrier?