nat 4 test pt.2 Flashcards
What name is given to a feature of an organism that improves its chances of survival?
An adaptation
When is an organism no longer well adapted?
Its environment changes
Over many generations, what would the number of well-adapted organisms in a population be expected to do?
Increase
What is a physiological adaptation?
body process that helps an organism to survive.
The white fur of a polar bear is an example of which form of adaptation?
structural adaptation.
What is an example of a behavioural adaptation?
A desert rat being nocturnal to avoid the heat of the day
Huddling by male penguins to conserve heat is an example of what?
Physiological adaptation
The ability of a seal to divert more blood to its brain during diving is an example of which form of adaptation?
Physiological adaptation
What determines whether or not an organism is well adapted?
its genes
