WorksheetsModule 3 Yr 11 biology
Total questions: 20
Worksheet time: 10mins
the variety of life in the world or in a particular habitat or ecosystem
biodiversity
demography
carrying capacity
poaching
a species that is not native to a particular region
endemic
exotic
endangered
extinct
species that are native to and found only within a limited area
endemic
exotic
endangered
extinct
a species at risk, but not yet endangered
endangered
exotic
endemic
threatened
Why is biodiversity important to ecosystems?
It helps populations adapt to ecological changes.
It increases at each level of the food chain.
What factor contributes most to the sustainability of a habitat?
Competition between large predators
Large variety of organisms
Presence of volcanic rock
Absence of bacterial species
Over time, scientists are predicting the Baltic Sea to become less salty. As a result, there will be less biodiversity. Which best explains why the biodiversity of the Baltic Sea would decrease?
Fewer types of plants and animals are found in warm water than in cool water.
Plants and animals adapted for living in saltwater will grow more slowly in water that has less salt.
Plants and animals adapted for living in saltier conditions will not be able to survive and reproduce.
Animals adapted for living in warm water will eat all the plants and animals adapted for living in cool water.
Which of the following is a description of an abiotic factor that makes up part of a desert habitat?
Sparse growth of cottonwood trees.
Extremes of day and night temperatures.
Few large predators, such as coyotes
Leafless, waxy-coated plant with sharp spines.
What ecological term matches the following definition? a group of individuals belonging to the same species living in a particular area at the same time.
ecosystem
community
population
biodiversity
What ecological term matches the following definition? a self-sustaining unit consisting of the interactions between the community and the environment?
ecosystem
community
population
biodiversity
What is selection pressures?
Internal agents affecting the ability of an organism to survive in a given environment
Internal organs affecting the ability of an organism to breathe in a given environment
External agents affecting the ability of an organism to survive in a given environment
External factors that have no effect on the survival of an organism
Which of the following is true?
Selection pressures can be only positive
Selection pressures can be positive or negative
Selection pressures can be only negative
Selection pressures is a myth
Selection pressures may change over time
True
False
What is the definition of biotic and abiotic?
Biotic factors are non-living components of an ecosystem.
Abiotic factors are living components in the environment which affect ecosystems.
Biotic factors are competitive components of an ecosystem.
Abiotic factors are non-competitive components in the environment which affect ecosystems.
Biotic factors are living components of an ecosystem.
Abiotic factors are non-living components in the environment which affect ecosystems.
Biotic factors are trends in line graphs.
Abiotic factors are trends in bar graphs.
Which organism would MOST LIKELY be adapted for life in a desert environment?
A bright red, tree frog
A dark, green crocodile
A large, white rabbit with long, thick fur
A small, tan coyote with very short, thin fur
Which statement BEST describes how hibernation enhances a ground squirrel’s chance of survival?
During hibernation, the ground squirrel’s heart rate speeds up to warm its body.
Hibernation causes the ground squirrel to die but come back to life when the weather gets warm again.
During hibernation, the ground squirrel moves to a warmer climate and doesn’t return until it gets warm again.
Hibernation slows the ground squirrel’s body processes down so it uses less energy during the cold months when food is scarce.
