VOCABULARY
REPRODUCTION
FOOD WEBS
POPS & RESOURCES
STABILITY AND CHANGE
100
When something becomes different over time.
change
100
What do we call the process of creating offspring?
reproduction
100
The size of a population can be affected by any population that is connected to it in a __________, even if they are not directly connected.
food web or food chain
100
The owl receives energy from which organisms?
mouse and frog
100
How do the births and deaths compare in a stable population?
equal
200
a molecule that organisms can use to release the energy they need to survive
energy storage molecule
200
When one population eats organisms from another population, we say that they are the _____________ _____________.
consumer population
200
Elephants eat grass. What is the consumer population?
Elephants
200
What is the first producer in this food web?
grass
200
How could a population increase? (2 reasons - include births and deaths in your answer)
more births or less deaths
300
a population that is eaten by another population for energy
resource population
300
When a population stays mostly the same over time, it is considered
a stable population
300
The arrows in a food chain represent...
the flow of energy
300
The smaller the resource population, the ______ energy storage molecules are available for its consumer populations.
less
300
What was the main idea of all the reproduction and energy articles?
Something that sounds like:
Reproduction takes A LOT of energy!
400
When two or more populations use the same resource, such as the same food source, we say there is __________________.
competition
400
Two populations can compete for the same resource population. A change to one of these populations affects the _____ of the other.
size
400
What is the name of the model that shows what eats what in an ecosystem?
food web
400
In the SIM what population has the MOST energy storage molecules collectively?
(greenleaf, weebug, furbil, stingwing, clawcat)
greenleaf
400
If I pour 5 mL of water into a tank and take out 10mL of water what is happening to the amount of water?
decreasing
500
When the result of something becomes the cause for another change
indirect effect
500
List 3 reasons organisms need energy
1. survive/live
2. move - walk, run, fly, etc.
3. eat - hunt, eat, etc.
4. reproduce
500
Yeast is to weebug as Sugar is to ____________.
greenleaf
500
What happens to the flowers if the frog population increases AND WHY?
They will increase because the frogs will eat more butterflies and limit the amount of predators for the flower.
500
What happens to the eagle population is the frog population decreases? AND WHY
It will decrease because with no frogs the snakes can not eat and they will die, meaning the eagles have no food and will also die.