In freshwater sponges and other simple freshwater animals, water flows into the body by __________. Fill in the blank(s) with the appropriate word(s)
ANSWER: osmosis
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The extrachromosomal DNA found in bacteria are called:
A. vectors. B. plasmids. C. telomeres. D. restriction enzymes.
A boy inherits his X chromosome from
a. his father. b. his mother. c. either his father or his mother. d. both his father and his mother.
The first person acknowledged to have seen living,
moving cells by using a microscope was a. Robert Hooke. b. Robert Brown. c. Galileo Galilee. d. Rudolf Virchow. e. Anton van Leeuwenhoek.
Please select the explanation for why the members of the bacterial family Enterobacteriaceae are commonly pathogenic to humans.
A) This family of bacteria commonly inhabits the human body as normal flora. B) Animals have these bacteria as normal flora, and since humans and animals are in close contact, the bacteria are easily transmitted to humans. C) Humans contact these bacteria easily from soil. D) Humans have no inherited resistance to these bacteria. E) As air contaminants, these bacteria easily are transmitted by respiratory route.