Q: Where does the earth gets its energy from? Choices: - decomposers - precipitation - heat - sun A:
sun

(Question)
Q: In the nasal cavity, what 2 things trap particles from incoming air? Choices: - phlegm and hair - saliva and hair - mucus and skin - mucus and hair A:
(Answer)
mucus and hair

Ques: Q: Most of the pathogens that cause stis enter the body through mucous membranes of which organs? Choices: - eyes - kidneys - stomach - reproductive organs A:
Ans: reproductive organs

(Q).
Q: Different elements differ in the size, mass, and other properties of what fundamental structures? Choices: - ions - compounds - particles - atoms A:
(A).
atoms

Ques:Q: Australopithecus afarensis is an ancestor of what primate? Choices: - lemurs - orangutans - gorillas - humans A:

Ans:humans

Ques: Q: Gas particles can move randomly in what directions? Choices: - one direction - few directions - some directions - all directions A:
Ans:
all directions