Definitions
two or more animals fight for the same resources
competition
male Birds of Paradise perform elaborate dances to attract a mate
courtship
Provide one advantage of asexual reproduction
A mate is not needed, so reproduction can happen more quickly
sounds, displays, behaviors, or chemicals that allow animals to convey messages to other animals
communication
Each box in a punnett square represents what percent chance of getting that genotype?
25%
traveling to a location and back again
migration
Bighorn Sheep run and bash their horns into other males to gain access to females
competition
Give one advantage of sexual reproduction?
There is more genetic variation since offspring receive half of the DNA from each parent
behaviors performed by animals without previous experience or learning
instincts
Dominant alleles are represented by what in a punnett square or genotype?
How are the recessive alleles represented?
Dominant alleles are represented by a capital letter, and recessive alleles are represented by a lowercase letter.
behaviors or displays by animals to attract a mate
courtship
Arctic terns fly from the Arctic to Antarctica each year and then return north to breed
migration
What is a disadvantage of asexual reproduction?
There is no genetic diversity since offspring are identical to the parents and other offspring.
behaviors acquired by experience with the environment or other animals
learned behaviors
Is it possible for two parent dogs with black fur to end up with puppies that have brown fur? How?
Yes. It depends on what allele is passed on by the parents. They might have recessive alleles for brown fur that are passed on to the puppies.
animals work together to survive and raise young
cooperative behavior
1) After the female emperor penguin lays an egg, the male balances it on his feet and keeps it warm for about two months in freezing temperatures. Both parents later help feed the chick.
2) While the females are out hunting for food, the male penguins stay on land and huddle in large groups, taking turns staying warm in the middle of the group.
1) Parental Investment
2) Cooperative behavior
What is a disadvantage of sexual reproduction?
A mate is required which slows down the reproductive process or even makes it impossible if a mate cannot be found.
Any action performed by an animal in response to internal or external stimuli
behavior
A hydra grows small buds on its body. The buds eventually fall off and become offspring. What would you expect to see in the DNA of the parent and offspring? Why?
The DNA would be identical as this is asexual reproduction.
adult animals working to provide safety and resources to their offspring
parental investment
Bees perform a “waggle dance” to tell other bees where to find food. The dance shows direction and distance.
communication
Describe the difference between internal and external fertilization
Internal fertilization - the egg is fertilized inside the female's body, the egg may develop inside or outside
External fertilization - the egg is fertilized outside the female's body
chemical messengers emitted by animals
pheromones
In a certain type of plant, red flowers are dominant to yellow flowers. What color would the flowers be if the genotype is:
Rr? RR? rr?
Rr - red
RR - red
rr - yellow