Which of the following statements is NOT true?
a. Some ectotherms can regulate their body temperature as efficiently as a mammal.
b. Ectothermic regulators may also be poikilotherms.
c. Endotherms gain all their heat from internal, biochemical reactions.
d. Some poikilotherms are homeotherms.
e. None of these.
C
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The true ribs are
A) ribs 1-7. B) called vertebrosternal ribs. C) ribs 8-12. D) called vertebrochondral ribs. E) ribs 1-7 and are called vertebrosternal ribs.
Secretions from which of the following areas of the cortex cause Cushing disease?
a. adrenal medulla b. zona fasciculata c. zona glomerulosa d. zona reticularis
What is the role of acetylcholinesterase at a synapse?
A. It releases calcium ions. B. It breaks down acetylcholine. C. It stimulates the post-synaptic neuron. D. All apply.
The lungs are considered excretory organs.
Answer the following statement true (T) or false (F)