Rocky Mountain juniper (Juniperus scopulorum) and one-seeded juniper (J. monosperma) have overlapping ranges. If pollen grains (which contain sperm cells) from one species are unable to germinate and make pollen tubes on female ovules (which contain egg cells) of the other species, then which of these terms are applicable?
1. sympatric species
2. prezygotic isolation
3. postzygotic isolation
4. allopatric species
5. habitat isolation
6. reduced hybrid fertility
A) 1 and 2
B) 2 and 4
C) 1, 3, and 6
D) 2, 4, and 5
E) 1, 2, 5, and 6
Examining the survivorship curve of a Dall mountain sheep population reveals information on the caus
Continued harvest of (a) cod and (b) mountain sheep by humans has caused evolutionary changes in mat
The Dall sheep, Ovis dalli, a mountain sheep of far northern North America, was the subject of one o
Hartmann's mountain zebra resting, showing its characteristic essentially unbarred belly
Top down view of Olympus Mons, the highest known mountain in the solar system
Foja Mountain