If 100 females produce 50 offspring, the age specific fertility rate is

A. 0.75.
B. 0.5.
C. 2.
D. 50.
E. impossible to calculate with this information.


E. impossible to calculate with this information.

Biology & Microbiology

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A person with frequent heartburn is more likely than others to eventually develop this condition

A) Large intestine 

B) Stomach 

C) Esophageal cancer 

D) Appendix 

E) Mouth 

F) Salivary glands 

G) Rectum 

H) Cirrhosis 

I) Gallbladder 

J) Small intestine 

Biology & Microbiology

Which structure is most likely to become lodged with a kidney stone?

a. Efferent artertiole b. Collecting tubule c. Loop of Henle d. Ureter e. Glomerulus

Biology & Microbiology

A large percentage of energy passes on from one trophic level to the next

Indicate whether the statement is true or false.

Biology & Microbiology

A eukaryotic cell

A. does not usually have a nucleus. B. does not have membrane-bounded organelles. C. has membrane-bounded organelles. D. is usually smaller than a prokaryotic cell. E. has a cell wall with peptidoglycan.

Biology & Microbiology