How many chromosomes does a human sperm cell or egg cell contain?

Why should food scientists test foods before the foods are sold

Genetic drift occurs when a population of organisms which normally don't travel great distances, like fruit flies, floats on a tree branch or piece of fruit across an ocean barrier to colonize a new location. TrueFalse

Imagine that a person has a disorder of the pancreas that does not allow it to secrete digestive enzymes. The breakdown of which macromolecule would be affected the most by this disorder? a. carbohydrates b. proteins c. fats d. nucleic acids

The energy needed to win a 1-minute footrace is produced mostly by?

A patient is 8 months pregnant. She calls her her obstetrician because of vaginal bleeding. It is "spotting" rather than heavy bleeding and there is no pain.

Where did the largest tsunami form?

What is the human genome project

The swordfish contains a heat generating organ that warms its brain and eyes up to 14°C above the surrounding ocean water temperature.

If an organism's haploid number is 12, its diploid number is a. 6. b. 24. c. 12. d. 3.

A scientist makes the argument that two species of butterflies should be considered the same species because they have similar DNA, similar wing length, and similar migration patterns.