What are the two short poison injecting fanged appendages on the anterior of the spider which are used for eating?
a) chelicera
b) jaws
c) chelapeds
d) maxillae
e) mandibles
Answer: a) chelicera
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The liver is involved in detoxification of many poisons and drugs. Which of the following structures is primarily involved in this process and, therefore, abundant in liver cells?
A) rough ER B) smooth ER C) Golgi apparatus D) nuclear envelope E) transport vesicles
Reactivation of chickenpox is called
A. shingles. B. herpes zoster. C. pneumonia. D. exanthems. E. shingles AND herpes zoster.
Which one of the following is the least likely reason that bipedalism evolved in hominoids?
A. requires less energy than walking with all four legs B. frees the hands for tool-making C. frees the hands for carrying food to be shared with others D. allows better surveillance for predators E. increases access to food resources
The core histones do not include
a. H1. b. H2A. c. H2B. d. H3. e. H4.