Life history adaptations of ___________ populations are characterized by an early age of first reproduction and short maturation time and life span. 

A. r-selected
B. K-selected


A. r-selected

Biology & Microbiology

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Pioneering species inhabiting a disturbed area alter the environment and create new habitats

a. False, the habitat cannot be changed by a living organism. b. True, organisms moving to a disturbed area use the resources and can themselves be a resource or can provide resources such as shade. c. False, pioneering species are very short-lived and so do not invest enough time to change the habitat

Biology & Microbiology

One of a pair of glands that produces fluid that nourishes sperm and assists movement of sperm in the female reproductive tract. _____

A) Endometrium B) Testis C) Cervix D) Uterus E) Oviduct F) Ovaries G) Vagina H) Seminal vesicle I) Penis J) Prostate gland K) Vas deferens L) Glans penis

Biology & Microbiology

The maximum useful magnification for a light microscope is about

a. 100X. b. 1000X. c. 10,000X. d. 100,000X.

Biology & Microbiology

The minimum number of microbes required for infection to proceed is termed a/an ________.

A. indigenous biota B. infectious dose C. virulence factor D. minimal dose E. endotoxin

Biology & Microbiology