What is the major source of energy for muscles?

A. Acetylcholine

B. Calcium

C. Glycogen

D. Adenosine triphosphate

Are there three divisions of biology?

Round seeds in pea plants is the dominant allele. if a heterozygous pea plant is crossed with a homozygous dominant pea plant, what is the probability that the offspring will be round

A student is comparing physical versus chemical changes using sugar cubes. Which part of the student's experiment illustrates a chemical change?

In a burglary case, investigators have to collect evidence so that they can identify the source of the shattered pieces of glass found at the scene. What should they do?

How does the molecular structure of base pairs ensure that two strands of DNA are complementary

Which organelle is not found in plant cells? A) vacuoles B) mitochondria C) chloroplast D) centrioles

Gina is driving her car down the street. She has a teddy bear sitting on the back seat. A dog runs in front of Gina's car, so she quickly applies the brakes.

The term enzymes, was first used in 1878. The term is derived from a Greek word that means in yeast because the yeast cells were first to reveal enzyme activity in living organisms.

The pituitary gland is controlled by sex hormones? 1. true or 2. false

Which function of the skeletal system would be especially important if you were in a car accident? fat storage protection of internal organs storage of minerals facilitation of movement