Q: What is it that surrounds cells and serve to keep the insides separated from the outsides? Choices: - inner membranes - abundant membranes - similar membranes - biological membranes A:
biological membranes

(Question)
Q: Very large stars eventually become what extremely dense space regions, which are so dense that no light can escape from them? Choices: - worm holes - dark matter - moons - black holes A:
(Answer)
black holes

Ques: Q: What are the egg shaped organs on either side of the uterus? Choices: - lungs - testes - kidneys - ovaries A:
Ans: ovaries

(Q).
Q: Hydras and sea anemones are examples of what form? Choices: - node - lesions - anemone - polyp A:
(A).
polyp

Ques:Q: What type of rock contains concentrations of valuable minerals? Choices: - sedimentary - igneous - metamorphic - ores A:

Ans:ores

Ques:Q: What happens to a tectonic plate when it subducts? Choices: - it warms - it cracks - it sinks - it melts A:

Ans:
it melts