Why Do Species Die Out Flashcards
1
Q
Some _ are so dramatic that species cannot adapt through natural selection and die out
A
Environmental changes
2
Q
Fluctuations in temperature, humidity, salinity have a marked effect on biosphere, especially _
A
In oceans
3
Q
Species that _ may be unable to produce new generations to respond to change
A
Breed slowly
4
Q
Sudden appearance of _
A
New species
5
Q
Changing into new species with _
A
New genes
6
Q
Occasionally species are found that belong to groups thought to be _
A
Extinct
