If your ecobottle has more consumers than producers, which of the following are likely to happen? Check all that apply:
Consumers will be over carrying capacity.
Producers will be over carrying capacity.
Producers will eat your consumers.
Consumers will run out of food.
Consumers will not have enough oxygen.
Consumers will not have enough carbon dioxide.
Two students set up a terrestrial ecobottle chamber. It contains one small worm, rotting leaves and damp dirt. Below this, their partners set up an aquatic chamber. It contains rocks and a snail. The worm and snail end up dying the next day because:
space was a limiting factor
food was a limiting factor
oxygen was a limiting factor
sunlight was a limiting factor
A disease results in the death of one third of a dense population of bats. It spreads easily between the bats because there are so many of them. The disease is an example of:
a density-dependent limiting factor
exponential growth
a density-independent limiting factor
a nutrient-limiting factor
In an ecobottle, a group puts one small dragonfly nymph, 3 snails, pond water and some pebbles into their aquatic system that will be placed under a grow light. Which of these limiting factors are going to affect the dragonfly nymph? Check all that apply.
food
space
oxygen
carbon dioxide
water
sunlight
What would most likely happen to the carrying capacity of deer in Iowa if we were suffering from a long-term drought?
increase
decrease
not change
For the graph below, what is the carrying capacity of Species 5?
2000 organisms
2500 organisms
Day 23
Day 15
1500 organisms
The chances of dying from a density independent limiting factor don't depend on the size of the population, while density dependent limiting factors are more deadly when the population size is larger. Which of the following would be a density independent limiting factor for the deer population in Iowa?
amount of sunlight available
amount of plants available
a large wildfire
appearance of a new virus like SARS-CoV-2 that affects deer
When a population grows past the ecosystem's carrying capacity, what happens to the population?
the population continues to grow
the population starts to die off to return to carrying capacity
the population will go extinct due to lack of resources
the population grows then finds a new carrying capacity
Over time, as the amount of food and resources in an environment change, the carrying capacity will
stay the same
increase
decrease
fluctuate
Any thing or organism that regulates the size of a population is known as