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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Question
Based on the text for roaches:
1. Describe how the pest mates.
2. Describe the development of the offpring.
Transcribed Image Text:三 =
4.
7.
10
Roaches Mating
American cockroaches engage in courtship rituals before mating. Females
begin courtship by raising their wings, exposing their integral membranes,
expanding their genital chambers and releasing a pheromone that attracts
males. This stance is referred to as the calling position.
Attracted males approach females and flap their wings to denote interest.
Mating commences when a male cockroach backs into a female cockroach,
depositing sperm.
After fertilization, a female American cockroach produces an egg case
known as an ootheca. Some species of cockroaches are ovoviviparous,
which means they carry the ootheca inside their bodies. In a few species,
the eggs grow inside the female's uterus without the aid of an ootheca. The
developing babies feed on the yolks of the eggs, just as those that grow
outside of their mothers do. Only one species of cockroach is viviparous,
meaning the babies develop inside the mother's uterus surrounded by
amniotic fluid. The young grow and develop just as the offspring of
mammals do until the mother gives birth. The female carries the ootheca on
her abdomen for a short time, usyally a day or two. After that, she deposits
it in a warm humid location.
Nymphs emerge within 38 days and complete their development within six
to 12+ months. The life span of the American cockroach ranges from one to
1.5 years.
!!
三
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