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Chapter 8 Review
Terms in this set (29)
What are the characteristics of parasitism ?
may cause host to become more vulnerable to predators & illnesses
Parasites are similar to ?
What population would have random dispersion?
solitary snakes in a desert
Examples of exponential growth
within a few years, population increased dramatically
What has the greatest effect on reproduction potential?
reproducing earlier in life
When would a population of species most likely go grow exponential?
when a species moves into a new area of suitable habitat
Why is the growth of orchids on the high branches of tropical trees an example of commensalism?
trees are neither benefitted nor harmed
What symbiotic relationships are neither species harmed ?
commensalism & mutualism
A species of plant has exponential growth after it is introduced into a new territory where it never lived before . Describe exponential growth.
within a few years, population increases dramatically
Which of the following organisms has the highest reproductive potential (elephants, dogs, bacteria, or humans) ?
Example of competition between species
two different species using same resources
Describe a species of niche
the unique rate the species plays in an ecosystem
Example of coevolution
flowers that can be only pollinated by one species
The density of a population is ?
the number of individuals per unit of area
What things would cause a large number of density-independent deaths in a population?
weather, natural disasters, tornados, hurricanes, floods, volcanos, earthquakes, winter storms
mistletoe, tick, flees, leach, roundworm
What determines the carrying capacity of an environment?
The number of wild horses per square kilometer in a prairie is the horse populations?
What are some properties that are used to describe a population?
number of individuals, density & dispersion
If over a long period of time, each pair of adults in population had only two offspring and the offspring lived to reproduce, the population would?
remain the same
The relationship between Canadian Lynx and a Snowshoe Hare is an example of ?
The relationship between acacia trees and the ants that live on them is an example of ? And why is it that relationship /
mutualism - they beneift each other
Example of populations
all the same species in an area
A female dog's niche would include what ?
number of puppies the dog has, how the dog protects its owner
What is the difference between a predator and a parasite ?
predator kills & eats the prey ; the parasite only harms the host
A population will most likely deplete the resources of its environment if the population ?
grows beyond carrying capacity
The carrying capacity of an environment for a particular species at a particular time is determined by the ?
supply of the most limited resource
What is used to calculate the change in population size?
births minus deaths
What pairs of organisms belong to the same population?
two residents of Los Angles
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