Natural Selection
Natural Selection
Food webs
Food webs
environmental impacts
100
Explain natural selection and artificial selection
natural selection is where animals that are most adapted to their environment live long enough to pass on their genes, artificial selection is when people choose which organisms reproduce so there are more desired traits.
100
Fill in the blank: survival of the _____
Fittest
100
What do the arrows on a food web show?
How energy is transferred from one organism to another.
100
What is the producer in this food web?
grass
100
An impact with an effect that lasts longer than 5 years
long term
200
What is an adaptation?
Any inherited characteristic that increases an organisms chance of survival
200
Who is the scientist credited with the discovery of natural selection?
Charles Darwin
200
What is the difference between a food chain and a food web?
A food chain only shows one path for energy/ a food web shows multiple
200
What organism would you assume has the lowest population in the food web?
Hawk, fox or owl
200
Is a nuclear disaster, like the one that occurred at Chernobyl a short term or long term environmental impact?
Long term
300
Which happens more quickly, natural or artificial selection?
artificial selection can change a population in one lifetime, natural selection would take many lifetimes
300
Sharks are colored white on the underside and blue or gray on top. How is this trait an advantage for them?
Camo hides them from predators and prey
300
Where does all the energy for any food web first come from?
The sun
300
Which organism is a primary consumer: bird, grasshopper, owl, or fox?
Grasshopper
300
An impact with an effect shorter than 5 years is...
short term
400
A new predator of rabbits has been introduced within an ecosystem. This new predator runs faster than the native predators of rabbits. How might the rabbit population adapt due to the introduction of the predator?
Faster rabbits will survive and reproduce increasing the average speed of the rabbit population.
400
Fill in the blank: Organisms with traits that _____ their chances of surviving and reproducing in their environment tend to leave more offspring
Increase
400
What types of organisms are first listed on a food web?
Producers
400
What is the best example of an Apex predator in this food web: Goat, Jackal, Snake, Lion
Lion
400
The word conservation showed up a lot in this unit. What does the word conservation mean?
To save or protect something
500
In an environment with food that grows on trees; are animals with long legs more likely to survive than animals with short legs and why?
Yes, animals with long legs, necks or any phenotype that makes them taller will be more likely to survive because they have easier access to food.
500
True or false: Survival of the fittest is which determines which species is the strongest physically
False
500
What organisms have the highest populations in a food web?
producers
500
What organism in this food web would have the largest population?
Phytoplankton
500
In what way does humans usually negatively impact the environment
Pollution