Can the number of isotopes tell you the absolute age of a fossil? or does it tell you relative age?

How are cells affected by the movement of water

What do killer whales eat

Which human cells never have 23 pairs of chromosomes? A. blood cells B. nerve cells C. mature sex cells D. mutant cells

when observing a runner-what physical evidence is there to suggest that the circulatory and respiratory systems rates are both increasing?

Which of the following mechanisms below increases the amount of genetic variations in a population? A.) Genetic flow B.) Gene flow C.) Bottleneck effect D.) Founder effect

Which hypothesis most likely explains the results at 60°C and 70°C? O A. The substrate has been used up because of the high temperature, O B. The enzyme has changed shape because of the high temperature. O C.

Hemoglobin is a protein found in the blood. which of the indicator chemical test for organic compound would you expect to be positive

Why do cells go through the cell cycle?

The diploid cell created by the joining of conifer sex cells produces a (n): a. Zygote c. Bryophyte b. Megaspore d. Angiosperm

To formulate the Hardy-Weinberg principle, what imaginative leap did both Godfrey Hardy and Wilhelm Weinberg have to make?