You are attempting to identify the type of helminth that has been isolated from a patient stool sample. The most important consideration to make this distinction is to
A. look at the gross anatomy to determine if the body is segmented or not.
B. ask the patient about recent food and water consumption.
C. determine if the cells are eukaryotic or bacterial by looking for nuclei.
D. examine the sample to see if microscopic eggs are present.
Answer: A
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a. ammonification b. denitrification c. assimilation d. nitrogen fixation e. nitrification
The yolk of an animal egg has what type of analog in angiosperms?
A) endosperm B) carpels C) fruit D) seed coat
Endocrine communication depends on
A) chemicals secreted into the blood for delivery. B) chemicals secreted through ducts. C) cytoplasmic movement through gap junctions. D) electrical signals within individual cells. E) target cells not binding to a hormone.
Some conifers shed their leaves seasonally.
Answer the following statement true (T) or false (F)