Euglenids have an organelle known as a(n) ________ which has a role in their phototactic behavior.
A. mitosome
B. kinetoplast
C. eyespot
D. apical complex
E. parabasal body
Answer: C
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Although the Proconsul fossil has a monkeylike body, it is considered the oldest (20 mya) fossil with
hominoid features such as larger canine teeth. ____________________ Indicate whether the statement is true or false.
In characterizing cartilage, which one of the following is CORRECT?
A) Cartilage is found where support under pressure is required. B) All types of cartilage are produced by osteocytes. C) Cartilage functions to link muscles to bone. D) Cartilage fibers make up ligaments. E) Cartilage is flexible due to a spongy network of trabeculae.
Describe the harmful effects of cigarette smoking on the respiratory system. What will be an ideal response?
Primary succession may be seen:a
on new lava or on sand dunes. b. after a fire. c. when farmland is abandoned. d. only in tropical rain forests. e. in any community that has periodic disturbances.