Why do we use a dichotomous key and how does it work?

Toxins are dumped into a lake. Which of the following is not a likely consequence? A) Plankton in the lake absorb the toxin. B) Large fish in the lake register moderate levels of the toxin.

Hormones regulate both the male and female reproductive systems. The principal male sex hormone is testosterone and is produced in the testes.

Which two cell structures works together in the process of protein synthsis?

Explain the differences between the thalamus, hypothalamus, and epithalamus?

In an aquatic ecosystem, the aquatic plants are eaten by small invertebrates that in turn are eaten by crayfish, the crayfish are eaten by fish, and the fish are eaten by ducks. based on this, which of the following is incorrectly matched?

Short hair is dominant to long hair in cats. What would be the genotype of a cat with long hair

What is often preceded by a crash since the growing population eventually is too large for the available resources

Which cellular structure would be the most likely location for synthesis of these enzymes

The process by which our sensory receptors receive and process information is called? A. sensation B. transduction C. perception D. transference

Who created the modern model of the solar system by discovering that the plantes move in elipses? a. Galileo c. Ptolemy b. Kepler d. Copernicus