Q: What genetic unit is formed when the dna double helix wraps around proteins and tightly coils a number of times? Choices: - atom - gene - neutron - chromosome A:
chromosome

(Question)
Q: What are indestructible and constantly in motion? Choices: - viruses - crystals - ions - atoms A:
(Answer)
atoms

Ques: Q: What type of feeders are earthworms? Choices: - middle - top - oil - deposit A:
Ans: deposit

(Q).
Q: When light strikes the rods and cones, they hyperpolarize, shutting off their release of what? Choices: - enzyme - vitreous fluid - dopamine - glutamate A:
(A).
glutamate

Ques:Q: Alveolar ducts and broncioles are developing parts of what organ system? Choices: - nervous - immune - digestive - respiratory A:

Ans:respiratory

Q: What is the term for a scalar measure of how quickly an object is moving along this line? Choices: - velocity - motion - force - speed A:
speed