Answer the following question given this paragraph: Q: In recent years, it has been hypothesized that molecules in the environment also act as? Choices: - pathogens - homeostasis disruptors - catalysts - endocrine disruptors A:
endocrine disruptors

Answer the following question given this paragraph: Eggs form in the ovaries. After puberty, an egg is released from an ovary each month in the process of ovulation. The egg passes through the fallopian tube where fertilization may take place. Q: What part of the body are eggs formed in? Choices: - brain - intestine - pancreas - ovaries A:
ovaries

Answer the following question given this paragraph: Sponges have an internal skeleton that gives them support and protection. An internal skeleton is called an endoskeleton . A sponge endoskeleton consists of short, sharp rods called spicules (see Figure below ). Spicules are made of silica, calcium carbonate, or spongin, a tough protein. They grow from specialized cells in the body of the sponge. Q: Sponges possess an internal skeleton called what? Choices: - hydrostatic skeleton - fluid skeleton - exoskelton - endoskeleton A:
endoskeleton

Answer the following question given this paragraph: In humans, there are five primary tastes, and each taste has only one corresponding type of receptor. Thus, like olfaction, each receptor is specific to its stimulus (tastant). Transduction of the five tastes happens through different mechanisms that reflect the molecular composition of the tastant. A salty tastant (containing NaCl) provides the sodium ions (Na+) that enter the taste neurons and excite them directly. Sour tastants are acids and belong to the thermoreceptor protein family. Binding of an acid or other sour-tasting molecule triggers a change in the ion channel and these increase hydrogen ion (H+). Q: In humans, there are five primary tastes, and each taste has only one corresponding type of what? Choices: - organ - neuron - membrane - receptor A:
receptor