4

Djur (Subject) / behaviour (Lesson)

This lesson was created by gustavmeck.

Learn lesson

This lesson is not released for learning.

back  |  next 1 / 1

• basics of reproduction • sexual reproduction • viviparous (appart from 2 egg laying) • lactation in mammary glands • parental care • reproduction within body
• attraction of opposite? indirect? direct? • calling (indirect) • pheromones and secretion (indirect) • courtship (direct) • displaying (indirect) • best habitat (indirect) --> all attraction is species specific
• mating systems • monogamy • polygamy (polygynous, polyandrous) • promiscuity
• Polygyny and consequences? • sexual dimorphism • males more aggressive • weaponry • female invest in young, more choosy in mating material

back  |  next 1 / 1