10-Sociality
... Protogyny—> Evolution of Sex —> Anisogamy Diploidy as a “fail-safe” mechanism Costs of Sexual Reproduction (halves heritability!) Facultative Sexuality (Ursula LeGuin -- Left Hand of Darkness) Protandry -- Protogyny (Social control) Parthenogenesis (unisexual species) Possible advantages of sexual r ...
... Protogyny—> Evolution of Sex —> Anisogamy Diploidy as a “fail-safe” mechanism Costs of Sexual Reproduction (halves heritability!) Facultative Sexuality (Ursula LeGuin -- Left Hand of Darkness) Protandry -- Protogyny (Social control) Parthenogenesis (unisexual species) Possible advantages of sexual r ...
Eisenia veneta - St. Olaf Pages
... begins to produce winged males and females to mate and start colonies of their own. ...
... begins to produce winged males and females to mate and start colonies of their own. ...
File - Mrs. LeCompte
... Polygamous = when a single male mates with multiple females o Due to gestation and lactation periods, females invest more time energy in their offspring than males o Grouping together to help each other forage for food is beneficial for females o Males defend the group from other males Polyandro ...
... Polygamous = when a single male mates with multiple females o Due to gestation and lactation periods, females invest more time energy in their offspring than males o Grouping together to help each other forage for food is beneficial for females o Males defend the group from other males Polyandro ...
www.saczoo.com
... short distances within their own territory. They hold their heads up high on their necks to display their prominent horns even while basking in the sun on rocks. Rhino iguanas are extremely territorial and use their long tails to slash and whip at predators or intruders. Although territorial battles ...
... short distances within their own territory. They hold their heads up high on their necks to display their prominent horns even while basking in the sun on rocks. Rhino iguanas are extremely territorial and use their long tails to slash and whip at predators or intruders. Although territorial battles ...
Frog Reproduction
... Describe the changes that occur during metamorphosis. Identify two examples of parental care in frogs. ...
... Describe the changes that occur during metamorphosis. Identify two examples of parental care in frogs. ...
Worms!
... females reproductive tracts, and inject sperm into them Sperm do not have flagellae, it uses pseudopodia to move ...
... females reproductive tracts, and inject sperm into them Sperm do not have flagellae, it uses pseudopodia to move ...
EVOLUTION, SEXUAL REPRODUCTION, SEXUAL DIMORPHISM,
... 1. Intrasexual selection 2. Intersexual selection 3. Post-mating selection ...
... 1. Intrasexual selection 2. Intersexual selection 3. Post-mating selection ...
Intra-sexual selection
... Why is there so much variation in mating systems and parental care? • Solitary species • Monogamous species • Polygynous species with 1 male, > 1 female • Polygynous species with >1 male, > 1 female • No parental care • Bi-parental care • Male parental care only • Female parental care only ...
... Why is there so much variation in mating systems and parental care? • Solitary species • Monogamous species • Polygynous species with 1 male, > 1 female • Polygynous species with >1 male, > 1 female • No parental care • Bi-parental care • Male parental care only • Female parental care only ...