Which of the following is an abiotic factor of a desert?

a. cactus

b. sand

c. lizards

d. wildflowers

How paleontologist use fossils of known ages to determine relative ages of other fossils?

Which biomolecule typically contains both Nitrogen and Phosphorous?

Which of the following best describes the building blocks that make up proteins? A. four different kinds of nucleotides connected through phosphodiester bonds B. 20 different kinds of amino acids linked through peptide bonds C.

The process of structural change over a long period of time that explain diversity of living thing is known as

In order for glucose to be used as an energy source, it is necessary that

Konrad Lorenz found that young birds bond with the first object they see. What type of behavior is this?

Today in class, a student asked whether the positive charge of the presequence of proteins being imported into the mitochondria was inhibitory for entry into the intermembrane space because of the positive charge present in this compartment of the

Why would scientists set off a underground explosion

Difference btw acquired and inherited triat

Maddy, Carole, and Maria are enjoying a day at the beach. They are body surfing and playing on their boards. Imagine that wave A catches up with wave B. Describe the change, if any, in wave amplitude.