Dichotomous keys split choices into two/three/scientific parts.

What does gelatinous secretion mean

How many types of essential amino acids do humans require from their diets?

Name the single most abundant material or substance in living matter

What happens as an enzyme becomes denatured? A. The enzyme works faster. B. The enzyme works slower. C. The enzyme can perform a new role. D. The enzyme can make the reverse reaction proceed faster.

How does capillary action relate to cohesion and adhesion

What contains both communities and ecosystems?

Which of the following represents a way that animals in a zoo are influenced by their environment? a. increased natural instincts b. decreased aggression c. unnatural behavior d. increased appetite

when the process of mitosis is correctly completed, the daughter cells should contain exact copies of all of on organisms genes. which biomolecule contains all of the organisms genes

Read the list of common household substances. Antacid, orange juice, toothpaste, vinegar Which of these substances are likely to have a bitter taste? Antacid, vinegar Antacid, toothpaste Orange juice, vinegar Orange juice, toothpaste

Which of the following do fish NOT use to breathe? A. air bladder B. pharyngeal slits C. pores on their back D. olfactory bulbs