Q: What is the name of the portion of a nucleotide lacking phosphate groups? Choices: - nuclear shell - a nucleobase - nucleolus - a nucleoside A:
a nucleoside

(Question)
Q: Most biochemical molecules are macromolecules, meaning that they are what? Choices: - very dense - very small - very abundant - very large A:
(Answer)
very large

Ques: Q: While components of a mixture can be separated by physical means, the components of a pure substance can only be broken down through what means? Choices: - mechanical - radiation - thermal - chemical A:
Ans: chemical

(Q).
Q: What substance can be eroded by wind or water? Choices: - metal - wood - sand - soil A:
(A).
soil

Ques:Q: What is prosopagnosia? Choices: - way blindness - lack of memory - time blindness - face blindness A:

Ans:face blindness

Ques:Q: What is the structure which hangs from a newly hatched salmon larva? Choices: - air sac - liquid sac - stomach sac - yolk sac A:

Ans:
yolk sac