Organisms that invade the body and cause disease are known as ________
Fill in the blank(s) with correct word
pathogens
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Which of the following is an adaptation of black-tailed prairie dogs?
a. modified digestive tracts to easily digest seeds and leaves of grasses b. transition to a carnivore lifestyle c. movement towards above ground living d. hibernation throughout the spring e. movement towards living in small social groups
Molecules that resemble fats but contain phosphate functional groups are called
A. steroids. B. polypeptides. C. phospholipids. D. nucleic acid.
Humans have ____.
A. more types of taste receptors than olfactory receptors B. more types of olfactory receptors than taste receptors C. a high degree of dependency on pheromones D. approximately six types of olfactory receptors E. an advanced vomeronasal organ
Which statement about the properties of life is false?
A) Organisms have the ability to take in energy and use it. B) Organisms have the ability to respond to stimuli from the environment. C) Organisms have the ability to reproduce. D) Organisms have an unchanging, constant internal environment.