Week 11 - Quiz 8

the graph would best be described as:

being a J-shaped curve characteristic of exponential growth

Which of the following organisms would have the highest intrinsic rate of increase? Humans Bacteria Red grouse Elephants Blue Whales

Bacteria

The wide adaptive radiation of mammals occurred during the early ____ era.

Cenozoic

Snakes are most closely related to:

lizards

which of the following would increase population size? r<0 mortality emigration r=0 natality

natality

Marsupials include the:

opossum

Which term can be applied to both monotremes and sharks?

oviparous

Most reptiles are ____ and their fertilization is ____.

oviparous; internal

An example of a density-dependent factor that influences the size of a population is:

parasites

The monotremes are an unusual group of mammals because they:

lay eggs

Order ____ includes the snakes.

squamata

When r = −0.00057, the population size:

will decrease

Which set of values would result in a population with a growth rate of zero?

b = 1000, d = 500, i = 500, e = 1000

Two members of the same species compete for a limited resource, resulting in equal sharing of the limited resource. What is this called?

intraspecific scramble competition

The best definition of population density is the number of individuals:

of one species in a given area at a given time.

The logistic equation: models a J-shaped growth curve. characterizes the uncontrolled growth of a population. predicts continued exponential growth. models a K-shaped growth curve. takes into account the carrying capacity of the environment.

takes into account the carrying capacity of the environment.

What would be the growth rate (r) of an island population of 6000 birds that has 50 births per 600 birds, 30 death per 600 birds, 5 immigrants per 600 birds, and 20 emigrants per 600 birds?

0.0083

Which of the following relationships is incorrectly paired? Flour beetle larvae—random dispersion Adult sand pine—uniform dispersion Nesting seabirds—random dispersion Grove of aspen—clumped dispersion Schooling fish—aggregated distribution

Nesting seabirds—random dispersion

Order ____ includes the turtles and tortoises

Testudines

True or False: Convergent evolution resulted in placental and marsupial mammals with similar structural features.

True

clumped dispersion is influenced by

a patchy distribution of resources

Which of the following consists of organisms, all of which share a common gene pool?

a population