WorksheetsInterdependence
Total questions: 15
Worksheet time: 15mins
All the different populations that live together in a specific area make up a..
community
ecosystem
pack
niche
An environmental factor that causes a population to stop growing or decrease in size. (food, water, climate, space, predators,etc.)
predators
human impact
natural disasters
limiting factors
All the living and nonliving things in a particular environment. (Jungle)
community
ecosystem
biotic factors
niche
In a food chain, a plant is known as?
A consumer
A producer
A provider
Which of the following do plants compete for?
Light
Space
Mates
Which of the following do animals compete for?
Food
Light
Mates
What is a decomposer?
Organism that breaks down organisms
Organism that breaks down dead organisms
Organism that kills other organisms
Name the ultimate source of energy.
Plants
Producers
Sun
Which of the following is a pollinator?
Worms
Flies
Bees
A group of scientists studied some trees in a pine forest. In the densely forested areas, the trees were within 1 m of each other. The scientists observed that these trees had dead branches near the ground. They measured the height above the ground at which the first living branches were found on different-sized trees in the forest. Then they repeated this procedure on the same kind of trees in an open meadow. This graph summarizes the scientists’ data.
Which inference is best supported by these data?
Pine trees in a dense forest can grow taller than pine trees in an open meadow.
Pine trees in a dense forest compete for sunlight with the surrounding trees.
Pine trees in a dense forest are part of a less-complex food web than pine trees in an open meadow.
Pine trees in a dense forest have more living branches than pine trees in an open meadow.
After researching the diets of several birds inhabiting a nearby pond, a student goes on a field investigation to observe the feeding habits of the birds. The student records information from research and observations in the table. The student observes a great blue heron catching fish near the edge of the pond. Based on the information the student collected, which bird will compete with the great blue heron for the same hunting spots and similar prey?
The mallard, because it hunts for fish while wading near the edge of the pond
The pied-billed grebe, because it dives in open water to get crayfish on the bottom of the pond
The great egret, because it hunts in water near the edge of the pond for fish and other prey
None of these
Barnacles are marine organisms that live attached to surfaces as adults. A scientist studies two barnacle species that live on rocks on a coast in Scotland. In some rocky areas Species A is found alone. In other rocky areas Species B is found alone. In still other rocky areas both species are found together. The diagram below shows the two barnacle species on rocks in their habitats.
If Species B were removed from the rocky areas it shares with Species A, Species A would most likely inhabit —
Zone I only
Zones I and II only
Zone III only
Zones I, II, and III
Which of the following best describes the concept of interdependence in an ecosystem?
A) The reliance of organisms on each other for survival
B) The competition between organisms for resources
C) The process of photosynthesis in plants
D) The migration of animals to different habitats
In a forest ecosystem, how do trees and fungi demonstrate interdependence?
A) Trees provide oxygen for fungi, and fungi provide carbon dioxide for trees
B) Trees provide shade for fungi, and fungi decompose dead leaves to enrich the soil
C) Trees offer shelter to fungi, and fungi offer food to trees
D) Trees and fungi compete for sunlight and nutrients
Which of the following is an example of interdependence in a food web?
A) A lion hunting a zebra
B) A bee pollinating a flower
C) A fish swimming in a pond
D) A bird building a nest in a tree
