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WorksheetsEcology
Total questions: 20
Worksheet time: 30mins
Demography is the science that studies
Population using vital statistics such as births, deaths, ages…
How things change overnight in the news
How people react to their climate zones
When people want to leave the country
In one year, 35 giraffes are born to a population. What does this number represent?
Growth rate
Emigration
Immigration
Birth rate
A square kilometer of forest has 200 deer. What is the term that is used to describe this number?
Density-Dependent
Birth rate
Limiting factors
Population Density
Which two factors can both cause a population to increase?
birth rate and emigration
birth rate and immigration
death rate and immigration
death rate and emigration
Predict what might happen to a population that is experiencing little immigration and emigration, low birth rate, and high death rate.
The population decreases.
The population increases.
The population grows too much too fast.
The population grows outside of its habitat.
The great hornbill and the toucan both eat the same fruit, insects, and nuts. They both live in the rainforest. Their large bills function to get food and also as warning coloration. Which of the following is a limiting factor to the toucan population?
overlapping breeding seasons
bill coloration
genetic variability
competition
Primary succession occurs in an area that has:
Has Soil
Has No Soil
Has Some Soil
none of these
___ are the first organisms to colonize an area and begin the process of ecological succession.
foundational organisms
introductory organisms
primary organisms
pioneer species
In which type of symbiotic relationship do both species benefit?
Commensalism
Parasitism
Mutualism
Predation
In which type of symbiotic relationship does one species benefit while the other species is unaffected?
Commensalism
Parasitism
Mutualism
Predation
In which type of symbiotic relationship does one species benefit while the other species is harmed?
Commensalism
Parasitism
Mutualism
Predation
In which type of symbiotic relationship does the predator eat it's prey?
Commensalism
Parasitism
Mutualism
Predation
A certain species of bird follows cows through a pasture and eats insects that cows stir up. The cows are not affected. Which type of symbiotic relationship is described?
Commensalism
Parasitism
Mutualism
Predation
A shrimp is warned of danger by a fish and the fish gets a home dug by the shrimp. Which type of symbiotic relationship is this?
Commensalism
Parasitism
Mutualism
Predation
