Characters that provide evidence for evolutionary relationship are
a. homologous.
b. analogous.
c. taxonomic.
d. convergent.
e. morphological.
A
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A muscle that has the opposite effect to that of another muscle at the same joint is called a(n)
a. flexor. b. agonist. c. depressor. d. antagonist. e. extensor.
In what ways do exotoxins usuall affect host cells?
a. Digesting intracellular fibers b. disrupting intracellular function c. causing lysis of cell d. dissolving the cell cement e. damaging the cell membrane
Which of the following features would be found in the epidermis layer of the skin?
A. composed of collagen fibers, cells produce keratin, contain melanocytes, offers a layer of protection against bacteria B. stratified cuboidal epithelium, cells produce keratin, contain melanocytes, offers a layer of protection against bacteria C. stratified squamous epithelium, cells produce keratin, contain melanocytes, offers a layer of protection against bacteria D. stratified squamous epithelium, cells produce keratin, contains a large amount of adipose tissue, offers a layer of protection against bacteria E. stratified squamous epithelium, contains specialized nerve endings, offers a layer of protection against injury
An animal that feeds on living material but does not kill the animal it feeds on is a
A. prey. B. host. C. parasite. D. predator.