Survival Needs
What are three things animals need to survive?
Food, Water, Shelter, or Space/Habitat
A trait that helps an organism survive is called what type of trait?
Favorable trait
What is mating?
Two adults pairing to produce offspring.
What is variation?
Differences in traits between individuals
What is a species?
a group of living things that can reproduce with each other.
Name one factor that can hurt an animal's survival
Disease, predators, pollution, habitat change, climate change
A trait that makes survival harder is called what?
Unfavorable trait
Which fruit flies usually choose the mate?
Females
Why is variation helpful in a population?
Some individuals can survive changes in the environment.
What process causes helpful traits to become more common?
Natural selection
What do we call the place where an animal lives?
Habitat
Why is an exoskeleton helptful to fruit flies?
It protects them and keeps moisture in.
What are special behaviors animals use to attract a mate called?
Courtship behaviors
What is natural selection?
Organisms with helpful traits survive and reproduce more.
What can happen if populations stay separated for a long time?
a new species can form
What can happen if animals run out of food or shelter?
The population stops growing or decreases.
Why can fruit flies survive in many environments?
They have many helpful traits and can eat many foods.
What is the difference between life span and life cycle?
Life span is from birth to death.
Life cycle is from birth to reproduction age.
What happens to helpful traits over many generations?
They become more common in the population
What two things influence how organims grow?
Genes and environment
What happens to living things if environmental conditions change?
Their growth and survival can change.
What type of trait might help a fly hide from predators?
Camouflage (color or pattern matching environment)
What are some courtship behaviors expressed by male fruit flies?
Tap female fruit fly legs, follow female fruit fly around, make different shapes with wings, speed up wing flapping to make different melodic noises.
Why might camouflage help fruit flies survive?
What might happen if the environment changes too much?
The species could go extinct.