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Worksheets8CCS_Midterm 2 Review
Total questions: 21
Worksheet time: 11mins
Competition occurs among the population of same species or even different species when they share a _______.
A. food
B. Water
C. niche
D. partner
Organisms that share the same habitat often have _______ that enable them to reduce competition.
A. adaptations
B. predation
C. competition
D. niche
The struggle between organisms to survive as they use the same limited resources is called _______.
A. adaptation
B. competition
C. predation
D. parasitism
Which is NOT an example of adaptations of predators and preys? CHOOSE ALL THAT APPLY.
A. Camouflage
B. Warning colors
C. Ability to run fast
D. Sharp teeth
What is “symbiosis"?
A. The relationship between two species that one hunt the other.
B. The relationship between two species living close together.
C. The relationship between two species helping each other.
D. The relationship between two species harming each other.
A tick is attaching itself to a dog and suck blood from it. The tick is a ______.
A. host
B. parasite
C. prey
D. predator
Is it TRUE or FALSE? No species gets benefit in parasitism.
A. TRUE
B. FALSE
What is the relationship between the bee and the flower?
A. Mutualism.
B. Predation.
C. Commensalism.
D. Parasitism.
Is a relationship in which one species benefits and the other species is neither helped or harmed.
A. Mutualism.
B. Predation.
C. Commensalism
D. Parasitism
Which one defines ‘Invasive species?
A. A species that enters a new ecosystem that does not belong there.
B. A group of similar organisms that can breed and reproduce.
C. A species that has evolved and belongs in a specific ecosystem.
D. The struggle between organisms to survive.
Which is NOT a ‘threat to biodiversity?
A. Climate change
B. Removal of resources
C. Increased levels of carbon dioxide gas
D. Captive breeding
Which activities cause most of the harm to habitats and ecosystem?
(a)
Which of the items below is NOT a way humans can protect biodiversity?
ntroducing invasive species to an ecosystem to give it more diversity.
Captive breeding programs for endangered species.
Laws protecting endangered species
Habitat preservation
Biodiversity is the ______ and _______ of different species in an area.
diversity
number
life
variety
Biodiversity determines the health of an ecosystem.
true
false
Healthy ecosystems may provide resources and materials that organisms need.
true
false
_________is related to the production, distribution, and consumption of goods and services that humans take from ecosystems.
economic value
ecological value
environmental value
ecosphere
Resources that are consumed from an ecosystem provide a ________.
direct
indirect
priceless
definite
Each species within an ecosystem has the ecological values that promote and enhance the ____of that ecosystem.
healthy
balance
population
biodiversity
Is a species that influences the survival of many other species in an ecosystem.
consumer
Keystone species
producer
apex predator
Changes to physical and biological factors of an ecosystem affect all of the _______ within an ecosystem.
ecosystem
population
consumers
community
