Carcinomas are:a
cancers that develop from connective tissue.
b. cancers that develop from muscle.
c. cancers that develop from epithelial tissue.
d. the migration of cancer cells through blood or lymph channels.
e. genes that transform normal cells into cancer cells.
c
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Prions are easily destroyed by common sterilization procedures
Indicate whether this statement is true or false.
Answer the following statements true (T) or false (F)
1. All materials passing from one hyphal cell to another must diffuse across the septal wall. 2. Conidia are sexual spores produced by mushrooms. 3. Lichens are monophyletic. 4. Many kinds of ascomycetes and basidiomycetes have lost the ability to reproduce sexually.
What is the purpose of the watery fluid secreted by the serosa of the human digestive tract?
a. emulsifies fats b. initiates peristalsis c. kills bacteria d. neutralizes acidic conditions e. reduces friction between nearby organs
In the human birth process, what does labor refer to?
A) the last part of the process when the fetus is expelled from the vagina B) regular contractions of uterine muscles C) the period between birth and expulsion of the placenta D) the period between the first contraction and dilation of the cervix