Which of the following best describes scientific theory?

A.) it cannot be changed

B.) it explains very few observations

C.) it is basically speculation

D.) it may change

The most abundant species in a community is called the a. apex competitor b. dominant species c. alpha species d. keystone species e. top predator

What do you know about an organism's parents if it is homozygous for a certain trait? A. Both parents supplied the same allele. B. The parents had the same traits. C. The parents had different traits. D. The parents supplied different alleles.

What are the blotchy spots on the sun called

The scientific theory that describes the beginning of the universe is called the a. Expanding universe theory b. Contracting universe theory c. big bang theory d. Oscillating universe theory

A neutral pH of 7 and normal organism temperature is needed for a certain enzyme to be effective. What would happen to the enzyme if the pH and/or temperature fluctuate greatly from the norm?

What does Hierachy of Biological Order mean

In giraffes, long necks (n), long legs (l), dark spots (d), and the ability to digest maize (m) are all dominant traits. what possible genotype could a long-necked, short-legged, light-spotted, maize-digesting giraffe have?

How much ug of protein are we suppose to load on sds precast gel?

Give examples of diseases caused by viruses

One function of the human excretory system is: 1. making materials that the body cells need 2. removing excess heat energy from the body 3. moving substances to and from body cells 4. controlling the body's responses to stimuli