Which mammalian skeleton provides an advantage in an aquatic environment?
A. A skeleton that has elongated legs and large flippers.
B. A streamlined torpedo-shaped skeleton.
C. A skeleton that allows for walking on the tips of their toes across the bottom of the ocean.
D. All of the answer choices provide an advantage in an aquatic environment.
E. None of the answer choices provide an advantage in an aquatic environment.
Answer: B
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Which of the following would NOT be an example of negative feedback control in homeostasis?
A. Blood volume and pressure drop due to bleeding. This decreased pressure causes the kidneys to increase water reabsorption to increase blood volume and pressure. B. Exposure to cold water causes body temperature to drop. Decreased stimulation of heat receptors causes constriction of blood vessels near the skin and better retention of heat. C. Glucose levels rise following consumption of a big dessert, triggering release of insulin which causes glucose levels to fall. D. During the birth process, stretch receptors in the uterus stimulate the release of oxytocin from the pituitary gland. This hormone stimulates uterine muscle contraction that increases stimulation of the stretch receptors. E. Blood levels of glucose fall during sustained exercise, causing the release of glucagon which stimulates the release of glucose into the blood.
The neural circuit that allows a male stickleback fish to orient and behave aggressively towards an inanimate object with a red stripe is an example of a(n)
A. sign stimulus. B. fixed action pattern. C. innate releasing mechanism. D. supernormal stimulus. E. stimulus-response chain. Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about behavior in stickleback fish? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following statements about the autonomic nervous system is false?
a) Every autonomic pathway consists of a two neuron chain b) The cell body of the first neuron in each autonomic pathway lies in the CNS c) Acetylcholine is released by the postganglionic neuron in every autonomic pathway d) The parasympathetic nervous system is used primarily for routine housekeeping duties e) None of the above are false
forms a food bolus, has tastebuds, covered by mucus membrane, skeletal muscle
What will be an ideal response?