Which of the following do not induce a strong immune response?
A.
Lipids
B.
Proteins
C.
Polysaccharides
D.
Simple sugars.
E.
Lipids AND simple sugars.
E
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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
Recent discoveries of microscopic fossils have extended the known history of life to about:
A. 1 billion years ago. B. 4.5 billion years ago. C. 3.5 billion years ago. D. 2 billion years ago.
Which of the following best describes a carrier?
A. an insect harboring a pathogenic organism B. an organism that normally does not cause infection, but it has the potential to cause infection given the right condition C. an organism infected with a virus D. a microorganism capable of causing an infection E. a person who harbors a pathogen without exhibiting symptoms
Fungi digest macromolecules by ________.
A. phagocytosis B. active transport C. intracellular digestion D. extracellular enzyme activity