Answer the following question given this paragraph: Circadian rhythms are regular changes in biology or behavior that occur in a 24-hour cycle. In humans, for example, blood pressure and body temperature change in a regular way throughout each 24-hour day. 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)
Answer the following question given this paragraph: Electromagnetic waves differ in their wavelengths and frequencies. The higher the frequency of an electromagnetic wave, the greater its energy. The speed of an electromagnetic wave is the product of its wavelength and frequency, so a wave with a shorter wavelength has a higher frequency, and vice versa. 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: Answer the following question given this paragraph: Galvanic cells have positive cell potentials, and all the reduction reactions are reversible. The reaction at the anode will be the half-reaction with the smaller or more negative standard reduction potential. Reversing the reaction at the anode (to show the oxidation) but not its standard reduction potential gives: Anode (oxidation):. 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).
Answer the following question given this paragraph: Q: Other than nitrogen, which nutrient most often limits marine production? Choices: - potassium - zinc - calcium - phosphorus A:
(A).
phosphorus
Ques:Answer the following question given this paragraph: Q: What prohibits knocking out genes? Choices: - genetic considerdations - professional considerations - moral considerdations - ethical considerdations A:

Ans:ethical considerdations
Ques: Answer the following question given this paragraph: Did you ever wonder how a microwave works? It directs invisible waves of radiation toward the food placed inside of it. The radiation transfers energy to the food, causing it to get warmer. The radiation is in the form of microwaves, which are a type of electromagnetic waves. Q: What type of invisible waves are used in microwaves? Choices: - convection - electric - thermal - radiation A:
Ans:
radiation