Q: What are regular changes in biology or behavior that occur in a 24 hour cycle? Choices: - cognitive rhythm - auditory rhythm - life cycle - circadian rhythm A:
circadian rhythm

(Question)
Q: The speed of an electromagnetic wave is the product of its wavelength and what else? Choices: - height - resonance - density - frequency A:
(Answer)
frequency

Ques: Q: What kind of cells have positive cell potentials, and all the reduction reactions are reversible? Choices: - new cells - inhibited cells - neutral cells - galvanic cells A:
Ans: galvanic cells

(Q).
Q: Other than nitrogen, which nutrient most often limits marine production? Choices: - potassium - zinc - calcium - phosphorus A:
(A).
phosphorus

Ques:Q: What prohibits knocking out genes? Choices: - genetic considerdations - professional considerations - moral considerdations - ethical considerdations A:

Ans:ethical considerdations

Ques: Q: What type of invisible waves are used in microwaves? Choices: - convection - electric - thermal - radiation A:
Ans:
radiation