Chapter 8 Understanding populations

The number of wild horses per square kilometer in a prairie is the horse populations

Density

Reproducing earlier in life

Has the greatest effect on reproductive potential

Which of the following organisms has the highest reproductive potential A. Bacteria B. Dogs C. Humans D.elephants

Humans

A true statement about parasitism is that parasites

May cause their hosts to become more vulnerable to predators

The relationship between acacia trees and the ants that live on them is an example

Mutualism

What is a main property used to describe a population

Number of individuals

The relationship between a Canadian Lynx and a snowshoe hare is an example of

Parasite and host

Mistletoe on a tree, a tick on a cat, a roundworm in a humans intestine are all known as

Parasites

a female dog's niche includes all these

the number of puppies the dog has, fleas that infest dog, how the dog protect its owners

An example of a population is

All maple trees in a forest

A thick fur on deer is not an example of co-evolution. Why?

Because thick fur evolved in response to a cold climate, not in response to other organisms

Competition for food cannot occur

Between animals from 2 different ecosystems

In which of the following relationships is neither species harmed A. Commensalism B.Competition C. Parasitism D. Predation

Commensalism

If over a long period of time, each pair of adults in a population had only 2 offspring and the offspring lived to reproduce, the population would

Remain the same

An animal that has a random dispersion

Solitary snakes in a desert

The carrying capacity of an environment for a particular species at a particular times determined by the

Supply of most limited resources

Which of the following statements are not correct A. Symbiosis is a relationship in which 2 organisms live apart B. Yucca moths and yucca plants have a symbiotic relationship C. Mutualism is a type of symbiosis D. Coyotes and foxes are competitors because they feed on the same kinds of animals

Symbiosis is a relationship in which 2 organism live

The density of a population is

The number of individuals per unit area

Why us the growth of orchids on the highh branches of tropical trees is an example of commensalism

The trees are neither benefited nor harmed

The difference between a predator and a parasite is that a predator

Usually kills and eats it's prey

What is most likely to cause a large number of density independent deaths in a population?

Winter storms