Members of the subphylum include spiders, ticks, mites, scorpions, and horseshoe crabs. Their first
pair of appendages are fanglike structures used for biting prey, and their second pair of appendages,
called pedipalps, are used for many different activities.
a. Myriapoda
b. Trilobita
c. Chelicerata
d. Hexapoda
e. Crustacea
C
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It has been thought that many diseases now associated with aging are related to malfunctioning
mitochondria. Why are the mitochondria so important to all cells?
a. They produce energy in the form of ATP. b. They generate heat to keep the body warm. c. They are the source of all human disease. d. They are extremely large. e. They are located only in vital organs.
The skin provides a waterproof barrier surrounding the body because of the presence of ________, a protein in the epidermal cells
Fill in the blank(s) with correct word
What is the effect of rest on physical endurance?
a. rest improves endurance b. there is no significant effect c. rest decreases endurance d. the effect varies with the type of exertion
Which statement is NOT a characteristic of biofilms?
What will be an ideal response?