reproductive strategies Flashcards
1
Q
reproduction
A
- productions of new generations of species from an existing generation
2
Q
what is the goal of each species?
A
- produce maximum number of surviving offspring
- least amount of energy used
- reproductive effort
- strategies
3
Q
A. courtship
A
- behaviours designed to attract mates
- simple strategies : pheromones (chemical); auditory (calls)
- simple examples : moths (pheromones); frogs (croak); brids (song)
- complex strategies (unique) : larger ; elaborate physical features; higher energy in courtship
- complex examples : peacocks (feathers); springbok (rut); birds (feeding)
4
Q
how will courtship maximise production?
A
- ensure suitability
- maturity and ready for mating
- females conserve energy
5
Q
B. External vs. internal fertilisation
A
- joining of nucleus of an egg to a sperm
- external fertilisation :
