WorksheetsPopulation Density and Biodiversity
Total questions: 10
Worksheet time: 38mins
Population density is the
number of individuals per unit of area.
ratio of one species to the total number of species.
total number of populations in an area.
Which of the following does not increase biodiversity?
high food availability
abundant resources
surge in one specific population
This is the process where the flow of carbon dioxide and oxygen has been disrupted by uncontrolled growth of algae.
(a)
In a lake fully covered with dead algae, which is a limiting factor for fishes to grow their population?
too much carbon dioxide
other fishes
fresh algae
These are factors that limit the growth of a population.
(a)
When birthrate is higher than death rate, population ___________.
grows
shrinks
declines
When a robin emigrates to look for new nesting place, the population it left will ________.
increase
shrink
grow
(a) is the amount of variation in an ecosystem.
As populations vary, the biodiversity of an area changes.
True
False
Give one human factor that can cause change in the biodiversity of an area.
(a)
