Reproduction and Development - PowerPoint PPT Presentation

1 / 33
About This Presentation
Title:

Reproduction and Development

Description:

Sequential hermaphroditism reverses its sex during its lifetime -protogynous female first ... Figure 47.8x Cleavage in a frog embryo ... – PowerPoint PPT presentation

Number of Views:22
Avg rating:3.0/5.0
Slides: 34
Provided by: e200702288
Category:

less

Transcript and Presenter's Notes

Title: Reproduction and Development


1
Reproduction and Development
  • Chapter 46 and 47

2
Asexual reproduction
  • Fission
  • Budding
  • Gemmules
  • Fragmentation
  • regeneration

3
Sexual reproduction
  • Parthenogenesis
  • Hermaphroditism
  • Sequential hermaphroditism reverses its sex
    during its lifetime
  • -protogynous female first
  • -protandrous male first

4
Fertilization
  • External vs. internal
  • External requires water environment
  • Internal allowed animals to adapt to dry land
  • Incited by pheremones

5
Figure 46.6 Reproductive anatomy of a parasitic
flatworm
6
Figure 46.7 Insect reproductive anatomy
7
Figure 46.8 Reproductive anatomy of the human
male
8
Figure 46.8 Reproductive anatomy of the human
male (continued)
9
Figure 46.11 Spermatogenesis
10
Figure 46.12 Structure of a human sperm cell
11
Figure 46.14 Hormonal control of the testes
12
Figure 46.9 Reproductive anatomy of the human
female
13
Figure 46.9 Reproductive anatomy of the human
female (continued)
14
Figure 46.9x Ovary (left) and follicle (right)
15
Figure 46.10 Ovulation
16
Figure 46.13a Oogenesis
17
Figure 46.13b Oogenesis
18
Figure 46.15 The reproductive cycle of the human
female
19
Figure 47.5 Fertilization in mammals
20
Figure 46.16 Formation of the zygote and early
postfertilization events
21
Figure 47.8x Cleavage in a frog embryo
22
Figure 47.7 The establishment of the body axes
and the first cleavage plane in an amphibian
23
Figure 47.15 Early development of a human embryo
and its extraembryonic membranes
24
Figure 46.17 Placental circulation
25
Figure 46.18 Human fetal development
26
Figure 46.22 Ultrasound imaging
27
Figure 46.19 Hormonal induction of labor
28
Figure 46.20 The three stages of labor
29
Figure 46.21 Mechanisms of some contraceptive
methods
30
Table 47.1 Derivatives of the Three Embryonic
Germ Layers in Vertebrates
31
Figure 47.14 The development of extraembryonic
membranes in a chick
32
Figure 47.23 Organizer regions in vertebrate
limb development
33
Figure 47.24 The experimental manipulation of
positional information
Write a Comment
User Comments (0)
About PowerShow.com