The breakup of large areas of habitat into small, isolated patches is called:a
extinction.
b. habitat fragmentation.
c. invasive species.
d. unsuitable territory.
e. habitat endangerment
B
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Golden collared manakin birds perform an elaborate mating dance that includes jumping on perches and repeatedly hitting their wings together to make a popping noise
Data suggest that females select the fastest jumpers and those that make the popping noise more rapidly for mating. The __________ is the mechanistic explanation of this behavior; the ___________ is the adaptive function of this behavior. A. mate choice; ability to jump B. ability to jump; mate choice C. female evaluation of the behavior; ability to jump D. ability to jump; female evaluation of the behavior
Methane gas (CH4) is an example of a
molecule containing which type of chemical bonds?
a. hydrogen bonds b. double bonds c. ionic bonds d. polar covalent bonds e. nonpolar covalent bonds
Which of the following junctions influences
the passage of ions and small molecules between cells? a. gap b. adhering c. loose d. tight e. gated
Which factor is the primary control of productivity in aquatic systems?
A) temperature B) precipitation C) light D) salinity