EXAMPLE Two mules mate but never produce offspring Lions (Africa) and tigers (Asia) in the wild An owl (active at night) and a blue jay (active during the day) Why a plant cannot fertilize itself One fish species attracts a mate by humming and a second species by creating a patch of seaweed A goat and a sheep reproduce but the embryo never develops The reproductive openings of one species are 3 mm apart but in a second species they are 7 mm apart BARRIER
EXAMPLE Two mules mate but never produce offspring Lions (Africa) and tigers (Asia) in the wild An owl (active at night) and a blue jay (active during the day) Why a plant cannot fertilize itself One fish species attracts a mate by humming and a second species by creating a patch of seaweed A goat and a sheep reproduce but the embryo never develops The reproductive openings of one species are 3 mm apart but in a second species they are 7 mm apart BARRIER
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:Instructions:
From the list below, select the type of reproductive barrier used to maintain species for each of
the provided examples. Be aware, some barriers may not be used at all and others may be used
more than once. Do not make assumptions, read each example carefully.
Hybrid Inviability
Temporal
Hybrid Infertility Spatial
Gamete Incompatibility
EXAMPLE
Two mules mate but never produce
offspring
Lions (Africa) and tigers (Asia) in the wild
An owl (active at night) and a blue jay
(active during the day)
Why a plant cannot fertilize itself
One fish species attracts a mate by
humming and a second species by creating a
patch of seaweed
A goat and a sheep reproduce but the
embryo never develops
The reproductive openings of one species
are 3 mm apart but in a second species they
are 7 mm apart
Behavioral
Mechanical
Hybrid Breakdown
BARRIER
Expert Solution

Step 1 Introduction
Reproductive isolation is a strategy that prevents species from either mater or producing viable offspring. It is broadly categorized into two types of barriers which are,
- prezygotic barrier
- Postzygotic barrier
Prezygotic barriers are those that prevent fertilization either by preventing mating or by preventing the fusion of male and female gametes.
Postzygotic barriers are those that occur before fertilization either resulting in the prevention of embryo development or the development of sterile offspring.
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