Q: Which atomic model shows that the distances of electrons from the nucleus is not a fixed value? Choices: - the electron model - the distance model - the equivocation model - the quantum model A:
the quantum model

(Question)
Q: What is the most effective color in interrupting the nighttime portion of the photoperiod? Choices: - yellow - white light - blue light - red light A:
(Answer)
red light

Ques: Q: According to rutherford, where is the vast majority of the mass of an atom located? Choices: - the cytoplasm - the shell - the electrons - the nucleus A:
Ans: the nucleus

(Q).
Q: After an infection has been brought under control and most cytotoxic t cells die off, a few remain as what? Choices: - b cells - natural killer cells - control cells - memory cells A:
(A).
memory cells

Ques:Q: The scientific process of collecting data outside the lab (in the "wild") is known as what kind of work? Choices: - scientific investigation - experimentation - track work - field work A:

Ans:field work

Ques:Q: What are reactions that can occur only in one direction called? Choices: - permanent - instantaneous - critical - irreversible A:

Ans:
irreversible