The amount of available energy changes between the trophic levels found in a food chain or energy pyramid

What do the polar bears, reindeer, and shrubs that live in a single area make up?

2. A plant shows incomplete dominance in size. A tall plant (TT) is crossed with a medium plant (TS). What fraction of plants will also be tall?

What is the term for the junction between one nerve cell and the next called?

An operon encoding genes that are transcribed and translated continuously to provide the cell with constant intermediate levels of the protein products is said to be which of the following? repressible inducible constitutive activated

What geological feature is located below an active volcano

Bats contain brown fat between their shoulder blades. how could this brown fat be an adaptation to torpor?

How many kingdoms are in the modern system of classification?

One cell that undergoes meiosis will yield how many independent cells

What type of macromolecule is the sugar fructose?

DNA uses, while RNA uses.