Which of the following statements concerning animal taxonomy is (are) true?
1. Animals are more closely related to plants than to fungi.
2. All animal clades based on body plan have been found to be incorrect.
3. Kingdom Animalia is monophyletic.
4. Animals only reproduce sexually.
5. Animals are thought to have evolved from flagellated protists similar to modern choanoflagellates.
A) 5 only
B) 1 and 2
C) 3 and 5
D) 3, 4, and 5
E) 2 and 4
Answer: C
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Amphibians are thought to have evolved from
A. ray-finned fish. B. lobe-finned fish. C. spiny fish. D. skates and rays. E. annelids.
The anatomical structure identified with the letter "H" in the accompanying figure is the ____
a. myocardium b. pulmonary veins c. inferior vena cava d. right atrium e. heart apex
Cattle egrets follow African ungulates such as African buffalo around and catch insects that the buffalo flush out. Oxpeckers perch on the backs of buffalo and feed on ectoparasites that infest the buffalo. Which one of the following shows the ecological interaction that the buffalo has with each bird?
A. cattle egret: mutualism; oxpecker: commensalism B. cattle egret: commensalism; oxpecker: mutualism C. cattle egret: competition; oxpecker: mutualism D. cattle egret: mutualism; oxpecker: mutualism E. cattle egret: commensalism; oxpecker: commensalism 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 symbiotic relationships and the qualifications for each? 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?
The human biceps and triceps muscles may be described best as working
a. independently. b. synergistically. c. antagonistically. d. synchronistically. e. involuntarily.