Which of the following is not an example of symbiotic nitrogen fixation?
A. Frankia with woody shrubs
B. Anabaenea with a water fern
C. Rhizobium with leguminous plants
D. Azotobacter with certain photosynthetic protists
Answer: D
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a. there is a one way flow of air b. they have spiracles to control airflow c. they have air sacs that allow them to store oxygen d. they do not need to ventilate their lungs
All animals gain or lose heat by a combination of four general mechanisms
Indicate whether the statement is true or false.
In humans, if an XY individual had a deletion of the SYR gene, that person would
A. develop as a male. B. develop as a female. C. have both male and female characteristics. D. have ambiguous genitalia.
An establishment that provides acute care services to individuals who stay overnight on the premises.
A. Adverse effect. B. Anatomical site. C. Co-morbidity. D. Inpatient facility