(Q).
Q: What is the top layer of water farther from shore called? Read this paragraph and choose the correct option from the provided answers: The top layer of water farther from shore is called the limnetic zone. There is enough light for photosynthesis and plenty of dissolved oxygen. However, dissolved nutrients tend not to be as plentiful as they are in the littoral zone. Producers here are mainly phytoplankton. A variety of zooplankton and fish also occupy this zone. Choices: - Tidal Zone - semimetal zone - Beach Zone - limnetic zone A:
(A).
limnetic zone

(Q).
Q: In some cases, the nervous system directly stimulates endocrine glands to release hormones, which is referred to as what? Read this paragraph and choose the correct option from the provided answers: Neural Stimuli In some cases, the nervous system directly stimulates endocrine glands to release hormones, which is referred to as neural stimuli. Recall that in a short-term stress response, the hormones epinephrine and norepinephrine are important for. Choices: - brain stimuli - active stimuli - functional stimuli - neural stimuli A:
(A).
neural stimuli

(Q).
Q: A refrigerator must do work to reverse the normal direction of what? Read this paragraph and choose the correct option from the provided answers: A refrigerator must do work to reverse the normal direction of thermal energy flow. Work involves the use of force to move something, and doing work takes energy. In a refrigerator, the energy is usually provided by electricity. You can read in detail in the Figure below how a refrigerator does its work. For an animation of how a refrigerator works, go to this URL: http://www. chemistry. wustl. edu/~edudev/LabTutorials/CourseTutorials/LabTutorials/Thermochem/fridge_movie. html. Choices: - visible energy flow - coolant energy flow - spectral energy flow - thermal energy flow A:
(A).
thermal energy flow