Which of the following statements is true concerning euglenids?
A. Some euglenids are pathogenic to humans.
B. Most have a cell wall.
C. The storage polysaccharide in euglenoids is NOT paramylon.
D. In the euglenoids, Rubisco (enzyme) is NOT involved in photosynthesis
E. All of the above is CORRECT.
Answer is A. Some euglenids are pathogenic to humans.
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Two taxa that are more closely related to each other than to any other taxon are called:
A. sister groups. B. paraphyletic groups. C. homologous groups. D. polyphyletic groups. E. analogous groups.
Which structure below is unique to organisms that harness solar energy to make sugar?
a. endoplasmic reticulum b. chloroplast c. plasma membrane d. chromosome e. nuclear envelope
Which of the following can be changed based
on new evidence? a. hypothesis b. theory c. prediction d. experiment e. all of these
Refer to Figure 44-3. A semilunar valve regulates blood flow into which structures?
a. 1 and 2 b. 1 and 5 c. 1 and 7 d. 2 and 7 e. 7 and 11