Which of the following is NOT a mode of transfer of an infectious disease?
a. direct contact
b. indirect contact
c. inhaling the pathogen
d. contact with a transmitting agent
e. retro-contact
ANSWER: e
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A lichen is made up of which two types of organisms?
A. a fungus and a nonvascular plant species B. a fungus and an algal species C. an alga and a vascular plant species D. an alga and a nonvascular plant species E. a fungus and either an algal or bacterial species
Sponges live in
a. shallow tropical seas. b. fresh water. c. cold, Antarctic seas. d. undersea farms. e. all of these.
Which of the following is a condition caused by a sex-linked inheritance in which a male child will bleed extensively because he lacks the physiological properties to form a blood clot?
A) color blindness B) male-pattern baldness C) hemophilia D) sickle-cell disease
What is incorrect about Shigellosis?
What will be an ideal response?