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WorksheetsPopulations and Communities
Total questions: 14
Worksheet time: 7mins
A prairie dog, a hawk, and a snake are all members of the same:
species
community
population
niche
Which of the following correctly shows the levels of organization from smallest to largest?
organism, species, population, community, ecosystem
species, organism, population, ecosystem, community
species, ecosystem, population, community, organism
ecosystem, community, population, species, organism
community, species, organism, ecosystem, population
Which of the following would be considered ABIOTIC factors in a forest ecosystem?
soil
oak tree
oxygen
sunlight
white-tailed deer
All of the following are limiting factors for populations except
weather
space
time
food
In which type of relationship does one organism benefit and the other is not helped nor harmed?
mutualism
commensalism
parasitism
predator-prey
A parasite lives on or inside its
(a)
The series of predictable changes that occur in a community over time is called
natural selection
ecology
commensalism
succession
What term is used to describe the first species to populate an area?
(a)
Which of the following would be considered pioneer species?
mushrooms
lichens
mosses
insects
grasses
Symbiotic relationships include mutualism, commensalism, and parasitism. Which of the images shows mutualism?
Which of the following is a TRUE statement about population size?
If birth rate < death rate, population size increases.
If death rate < birth rate, population size decreases.
If birth rate > death rate, population size increases.
If death rate > birth rate, population size increases.
Ecosystems have different levels of organization. A group of similar organisms makes up a _______________, which, along with other types of organisms makes up a (n) _____________.
species, population
habitat, ecosystem
population, community
population, habitat
Three different bird species all live in the same trees in an area, but competition between the birds rarely occurs. Which of the following is a likely explanation for this lack of competition?
The three species occupy different niches.
The three species eat the same food.
The three species have a limited supply of food.
The three species live in the same part of the trees.
Which of the following are considered BIOTIC factors?
trees
deer
fish
water
wind
