Malaria is caused by Plasmodium falciparum, a nonmotile protist that contains a cluster of microtubules at one end of the cell. Once injected into the bloodstream, these microtubules are used to attach to red blood cells. Malaria is transmitted by the bite of a
A. tsetse fly.
B. sand fly.
C. kissing bug.
D. mosquito.
E. house fly.
D. mosquito.
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The stomata:
a. only open at night b. are open when guard cells are swollen with water c. close when the osmotic pressure of guard cells increases d. are covered by the cuticle to reduce water loss e. open and close in response to sunlight only
An organism's genotype is its genetic makeup. An organism's physical traits are its phenotype
a. true b. false
Which of the following is a common ailment characterized by a burning sensation caused by gastric juices backing up into the esophagus?
A) heartburn B) acidosis C) porosis D) gastritic stress
Trait SpeciesABCDE111011210010310011411111511111600010The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, and a "1" indicates the derived condition. Which trait is least informative of phylogenetic relationships within the group?
A. A B. B C. C D. D E. E