Q: How many pairs of chromosomes are there? Choices: - 17 - 2 - 13 - 23 A:
23

(Question)
Q: What is the basis of the classification of protists? Choices: - conditions shared - mutations shared - tails shared - traits shared A:
(Answer)
traits shared

Ques: Q: What model postulates that electrons orbit the nucleus at fixed energy levels? Choices: - Newton's model - coreolis - atomic model - bohr A:
Ans: bohr

(Q).
Q: What organ lets us understand what we see, hear, or sense in other ways, and allows us to use language, learn, think, and remember? Choices: - heart - bone - Kidneys - brain A:
(A).
brain

Ques:Q: The ocean is the largest marine biome. it is a continuous body of salt water that is relatively uniform in chemical composition; it is a weak solution of mineral salts and decayed what? Choices: - uranium atoms - rock shards - metal ores - biological matter A:

Ans:biological matter

Q: A multiaxial ball-and-socket joint has much more mobility than a what hinge joint? Choices: - triaxial - biaxial - quadaxial - uniaxial A:
uniaxial