Rocky Mountain Juniper (Juniperus Scopulorum)and One-Seeded Juniper (J

question 33

Multiple Choice

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

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Definitions:

Circadian Rhythms

Physical, mental, and behavioral changes that follow a 24-hour cycle, responding primarily to light and darkness in an organism's environment.

Dysrhythmia

An abnormality in a physiological rhythm, especially in the pattern of electrical activity in the heart, leading to irregular heartbeat.

Abnormal Rhythm

Irregular patterns of the heart beat that can affect blood flow and may signify underlying health issues.

Pulse Deficit

A condition where there’s a difference between the heartbeats felt at the wrist and those heard at the heart, indicating cardiac issues.