The greatest contributor(s) to allopatric isolation is(are)

a. geographical barriers.
b. different ecological niches.
c. polypolidy.
d. hybrid inviability.
e. behavioral peculiarities.


a

Biology & Microbiology

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Osteoporosis is a common condition that essentially results when homeostasis cannot be maintained in ________ and ________

A) osteoclasts; osteoblasts B) osteoblasts; osteons C) chondroblasts; osteoclasts D) canaculi; chondroblasts E) canaculi; osteoclasts

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Diet and exercise reduce the number of fat cells as well as the amount of fat stored in each cell

Indicate whether the statement is true or false

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What is a leaf blade attached to a stem by a stalk-like structure?

A) internode B) stoma C) petiole D) node

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Light-dependent reactions generate

A. glucose and O2. B. ATP and CO2. C. O2, ATP, and NADPH. D. ATP and NADPH. E. light.

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