Gases move independently down their pressure gradients, from higher to lower pressure
a. true
b. false
Answer: a. true
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After childbirth, ____ in the mother
a. oxytocin stimulates the production and secretion of milk b. oxytocin stimulates the production of milk and prolactin stimulates the secretion of milk c. prolactin stimulates the production and secretion of milk d. prolactin stimulates the production of milk and oxytocin stimulates the secretion of milk e. estrogen and progesterone are directly responsible for the production and secretion of milk
Which of the following always results from recombination at the synaptonemal complex?
a. a random number of changed chromatids vs. unchanged chromatids b. four unchanged chromatids c. two changed chromatids and two unchanged chromatids d. four changed chromatids
The phylum Platyhelminthes are more commonly known as:
a. ribbon worms. b. mollusks. c. snails. d. earthworms. e. flatworms
Which of the following is the major sign or symptom of mumps?
A) diarrhea B) nausea and vomiting C) deafness D) parotitis E) difficulty in breathing