6th Grade- Energy In Ecosystems Question Preview (ID: 34226)


Ecology Unit. TEACHERS: click here for quick copy question ID numbers.

only about _____percent of the energy contained in a trophic level is transferred between levels
a) 100
b) 25
c) 10
d) 1

In a food pyramid, the producers are at the
a) top
b) middle
c) bottom
d) top and bottom

It is so important for human beings to eat ____________ and ___________ to receive energy.
a) fats and oils
b) fruits and vegetables
c) meat and eggs
d) dairy and eggs

Carnivores that eat the herbivores are called
a) primary consumers
b) secondary consumers
c) herbivores
d) scavengers

Primary consumers are also called
a) herbivores
b) carnivores
c) decomposers
d) scavengers

Plants are called _________ because they are able to use light energy from the sun to produce food from carbon dioxide and water
a) consumers
b) producers
c) decomposers
d) scavengers

Animals that eat other animals are called
a) producers
b) primary consumers
c) carnivores
d) decomposers

Carnivores that eat other carnivores are called
a) primary consumers
b) secondary consumers
c) producers
d) decomposers

species of hummingbirds had a birth rate of 1000 over the course of a year and a death rate of 400 over the course of a year, the growth rate of hummingbirds for that specific population and time period would be
a) 500
b) 600
c) 1,400
d) 1,600

Animals and people who eat both animals and plants are called
a) vegetarians
b) herbiviores
c) omnivores
d) carnivores

If the number of births is consistently larger than the number of deaths, the population will increase over time
a) true
b) false
c)
d)

When there are more lions, the giraffe population will increase
a) true
b) false
c)
d)

Interconnected food chains form a food web
a) true
b) false
c)
d)

Most animals are only part of one food chain and eat one kind of food in order to meet their food and energy requirements
a) true
b) false
c)
d)

Populations can continue growing forever
a) true
b) false
c)
d)

Less food means fewer organisms can feed, which in turn will lead to
a) more organisms
b) fewer organisms
c) the same number of organisms
d)

a population crash means
a) the population is getting larger
b) animals are running into one another
c) the population is dropping
d) all the animals have died

which of these are NOT reasons that people think shark populations are declining?
a) people hunting them for thier fins
b) seal populations decreasing
c) attacks by killer whales
d) tuna fishing

an environmental factor that prevents a population from growing is called a
a) reducing factor
b) carrying capacity
c) limiting factor
d) environmental control

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