Adaptations of mosses for life on land include
_____ delayed meiosis.
_____ wind dispersal of gametes.
_____ wind dispersal of spores.
_____ enclosure of zygotes in the gametophyte.
_____ enclosure of gametes in gametangia.
__X__ delayed meiosis.
_____ wind dispersal of gametes.
__X__ wind dispersal of spores.
__X__ enclosure of zygotes in the gametophyte.
__X__ enclosure of gametes in gametangia.
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An epithelial tissue can best be defined as:
A. a collection of layered cells. B. a collection of contractile cells. C. a network of cells that use chemical communication. D. a few cells embedded into an extensive extracellular matrix.
Ocean dumping of trash is an example of society doing all except
a. abusing the ocean. b. finding short-term profits in waste disposal. c. finding a viable solution to trash. d. having an "out of sight, out of mind" mentality.
Which pair of structures, found in different organisms, both serve to increase the absorptive surfaces of the intestines?
a. choanocytes and gastric ceca b. proventriculus and villi c. choanocytes and proventriculus d. typhlosoles and villi
Medical asepsis eliminates all microbes from an object or area
Indicate whether the statement is true or false