The cells that make up muscle tissue are called _________
a. macrophages
b. simple squamous epithelium
c. red blood cells
d. myocytes
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This material provides a mechanism for the maintenance of normal human skin that prevents drying and also is involved in the production of an acid pH to prevent the colonization of poten-tially pathogenic organisms
a. sweat b. bacterocins c. antibodies d. sebum
Which of the following would be more likely to
affect an animal’s habitat than its niche? a. rainfall b. prey abundance c. predators d. defense mechanisms e. competitors
Colostrum is:
a. a protein fluid produced by the mammary gland. b. the fluid secreted by the vagina in response to sexual stimulation. c. the hormone that stimulates lactation. d. the hormone that stimulates ejection of milk into the breasts. e. a fluid secreted by the uterus during menstruati
The autosomal dominant disorder neurofibromatosis Type I (NF1) causes benign tumors in individuals who have the NF1 allele (N). Nearly every individual who is either NN or Nn will show some clinical symptoms of the disorder yet individuals can have widely different symptoms with some individuals being severely affected while others have few tumors. Based on this description, NF1 appears to have ______________.
a) incomplete dominance b) variable expressivity c) incomplete penetrance d) pleiotropy