The gastrovascular cavity of a flatworm serves as both the ____ and ____ systems of the body

a. digestive; circulatory
b. digestive; reproductive
c. digestive; respiratory
d. circulatory; respiratory
e. respiratory; reproductive


A

Biology & Microbiology

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Which letter in the figure above corresponds to closed sodium and potassium channels?

A) A B) B C) C D) D E) E

Biology & Microbiology

In the sweet pea crossing experiment by Bateson and Punnet, the F2 generation had many more offspring with the phenotypes of purple flowers P, long pollen L and red flowers p, round pollen l than expected from independent assortment. This is because

A. in sweet peas, there are always more PL gametes than Pl ones. B. in sweet peas, the alleles for flower color and pollen shape are on the same chromosome. C. there were few recombination events between these genes during meiosis. D. flower color and pollen shape are within the same linkage group. E. All of the statements given are true.

Biology & Microbiology

An example of a dimorphic fungus is:

a. Candida albicans. b. Coccidioides immitis. c. Cryptococcus neoformans. d. Aspergillus fumigatus.

Biology & Microbiology

Boiling is very effective at removing most common waterborne pathogens

Indicate whether this statement is true or false.

Biology & Microbiology