Alex had two black rats (dominant). He allowed his black rats to mate and was shocked to see that three of the rat babies were black and one was an albino! What genotypes were the parents?

In order to understand the stability of a community, ecologists want to be able to measure biodiversity in an ecological area. One method for measuring and calculating stability is to calculate a Simpson's index for diversity.

When the heartbeat and pulse beat don't match, what exists in the animal?

Which of the following is NOT a characteristic of all living things? a Ability to Reproduce b Ability to move c Growth and development d Response to the environment

What refers to a steady rise in the environment's temperature?

What did rosalind franklin contribute to the discovery of the structure of dna?

What genetic mutation is sickle cell anemia caused by?

The opening and closing of the heart valves is caused by action potentials within the cusps of the valves. contraction of the smooth muscle in the walls of the great vessels leaving the heart.

What is systematics and why is it a less arbitrary and more natural approach to categorizing living organisms?

Think about the following items: a candle flame, a balloon floating in the air, and bubbles blown from a bubble wand. Describe characteristics that could indicate life in these items, and characteristics that show they are not alive.

If a person wanted their child to have 6 fingers on each hand, explain how you think a doctor would be able to accomplish this