Asked by
Gabriel Bermudes
on Oct 15, 2024
Verified
In the monkeyflowers studied by Bradshaw and Schemske, reproductive isolation results from
A) gametic incompatibility between pollen and ovule.
B) sterility of hybrid offspring.
C) color preferences of hummingbirds and bees.
D) asynchrony in time in which plants reach reproductive maturity.
Gametic Incompatibility
Occurs when sperm or pollen from one species fails to penetrate and fertilize the egg or ovule of another species.
Reproductive Isolation
A collection of mechanisms, behaviors, and physiological processes that prevent the members of two different species from producing offspring, or ensure any offspring are sterile.
Hummingbirds
A family of small, brightly colored birds known for their rapid wingbeat, ability to hover, and preference for feeding on nectar.
- Recognize the different barriers to reproduction and classify them into prezygotic and postzygotic categories.
- Examine the genetic and ecological elements that play a role in species formation, considering both sexual selection and natural selection.
- Investigate the importance of ecological speciation and how environmental influences affect the processes of speciation.
Verified Answer
CC
Learning Objectives
- Recognize the different barriers to reproduction and classify them into prezygotic and postzygotic categories.
- Examine the genetic and ecological elements that play a role in species formation, considering both sexual selection and natural selection.
- Investigate the importance of ecological speciation and how environmental influences affect the processes of speciation.