Figure 46.0 Frogs mating
Figure 46.0x1 Utethesia ornatrix mating
Figure 46.0x2 Red beetles mating
Figure 46.1 Two from one: asexual reproduction of a sea anemone (Anthopleura elegantissima)
Figure 46.x1 Aphid giving live birth
Figure 46.2 Sexual behavior in parthenogenetic lizards
(a)
Figure 46.3 Sex reversal in a sequential hermaphrodite
Figure 46.4 The release of eggs and external fertilization
Figure 46.x2 Sea urchin sperm fertilizing an egg
Figure 46.5 Parental care in an invertebrate
Figure 46.6 Reproductive anatomy of a parasitic flatworm
Figure 46.7 Insect reproductive anatomy
Figure 46.8 Reproductive anatomy of the human male
Figure 46.8 Reproductive anatomy of the human male (continued)
Figure 46.9 Reproductive anatomy of the human female
Figure 46.9 Reproductive anatomy of the human female (continued)
Figure 46.9x Ovary (left) and follicle (right)
Figure 46.10 Ovulation
Figure 46.11 Spermatogenesis
Figure 46.11x Spermatogenesis: Seminiferous tubules (left), sperm in semen (right)
Figure 46.12 Structure of a human sperm cell
Figure 46.13a Oogenesis
Figure 46.13b Oogenesis
Figure 46.14 Hormonal control of the testes
Figure 46.15 The reproductive cycle of the human female
Figure 46.9x Ovary (left) and follicle (right)
Figure 46.13b Oogenesis
Figure 46.16 Formation of the zygote and early postfertilization events
Figure 46.17 Placental circulation
Figure 46.18 Human fetal development
Figure 46.19 Hormonal induction of labor
Figure 46.20 The three stages of labor
Figure 46.21 Mechanisms of some contraceptive methods
Figure 46.22 Ultrasound imaging