Q: What kind of rock forms when material such as gravel, sand, silt or clay is compacted and cemented together? Choices: - ingenious - limestone - craters - sedimentary A:
sedimentary

(Question)
Q: Which process helps absorptive protists absorb food molecules across their cell membranes? Choices: - activation - secretion - metabolism - diffusion A:
(Answer)
diffusion

Ques: Q: What chemical substances are secreted by animals that communicate by odor or taste? Choices: - alaki - hormones - acids - pheromones A:
Ans: pheromones

(Q).
Q: How can you calculate the density of matter? Choices: - by subtracting mass from volume - by multiplying its mass by its volume - by dividing its volume by its mass - by dividing its mass by its volume A:
(A).
by dividing its mass by its volume

Ques:Q: What two words describe the debate over whether behaviors are caused by genetics or by environment? Choices: - kinetic and potential - positive and negative - dominant and recessive - nature and nurture A:

Ans:nature and nurture

Q: Compounds with metals and nonmetals sharing electrons are known as what kinds of compounds? Choices: - acids - atoms - eons - ions A:
ions