In humans, which of these structures is not made of cartilage?
A. tip of the nose
B. outer ear
C. intervertebral disks of the backbone
D. knee cap
E. larynx
D. knee cap
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Phagotrophy (Phagocytosis) is:
A. the movement of small organic molecules across the cell membrane B. the capture and ingestion of food particles by a cell C. the synthesis of organic molecules from inorganic molecules using light as an energy source D. the ability to use photosynthesis and osmosis or particle ingestion for nutrition
The five stages of a lytic infection are attachment, penetration, __________, assembly, and release
a. lysis b. prophage c. lysogenesis d. transduction e. replication
A scientist is investigating a hormone response in rose bush stems by removing the apical meristems of the main stems. What is the most likely result of this experiment and what hormone is responsible?
A. Flowers will turn yellow and fall off under the influence of auxin. B. Lateral buds will develop under the influence of cytokinin. C. New apical buds will develop under the influence of auxin. D. More leaf buds will appear along the main stems under the influence of auxin. E. Larger, deeper roots will form under the influence of cytokinin.
Members of which of the following phyla would have a radula and a mantle?
a) Annelida b) Nematoda c) Mollusca d) Porifera e) Cnetophora