Q: What is the body system that digests food mechanically and chemically and absorbs nutrients? Choices: - metabolism system - internal system - ingestion system - digestive system A:
digestive system

(Question)
Q: Osmotic pressure is important in biological systems because cell walls are what? Choices: - impassable - theonym membranes - variably membranes - semipermeable membranes A:
(Answer)
semipermeable membranes

Ques: Q: The measure of how much a given volume of matter decreases when placed under pressure is called? Choices: - elasticity - solubility - malleability - compressibility A:
Ans: compressibility

(Q).
Q: What part of a spider is equipped with poison glands? Choices: - baleen - pedipalps - vacuole - chelicerae A:
(A).
chelicerae

Ques:Q: In alcoholic fermentation , which acid changes to alcohol and carbon dioxide? Choices: - rain - chloride - lipoic - pyruvic A:

Ans:pyruvic

Ques:Q: In the freshwater flatworms, protonephridia serve chiefly in what? Choices: - enculturation - excretion - thermoregulation - osmoregulation A:

Ans:
osmoregulation