Growth Curves
A growth curve shows how many births and _________ happen over time in a population.
a. babies
b. deaths
Limiting factors _______________
a. slow down the growth of a population through a decreasing birth rate or increasing the death rate.
b. speed up the birth rate
a. slow down the growth of a population through a decreasing birth rate or increasing the death rate.
What is competition?
a. when two populations of animals use the same resources
b. how many births and deaths occur over time
a. when two populations of animals use the same resources
An ecologist studies organisms, their habitats, and their _______
a. populations
b. dreams
a. populations
If there is a large increase of births in a population, the growth curve will look like a ________________
a. J
b. S
a. J
Which one of these is a limiting factor for goldfish living in a fish aquarium?
a. weather
b. living space
b. living space
What is one resource that eagles and hawks might compete for?
a. rabbits
b. trees
a. rabbits
When animals move to a new place for reproduction or weather this is called ____________
a. instinct
b. migration
b. migration
If a carrying capacity occurs in a growth curve, it will look like a _________.
a. J
b. S
b. S
What might happen if a limiting factor such as disease affects a population of birds?
a. higher birth rate
b. higher death rate
b. higher death rate
What is a resource that two flowers might compete for in the same pot?
a. sunlight
b. seeds
a. sunlight
This is the amount of organisms that a habitat can handle. There will still be births and deaths
a. carrying capacity
b. growth curve