Environmental and Conservation Biology

6 years ago

Instead of coping with stress, some animals ________ by leaving the population to seek vacant ...

Instead of coping with stress, some animals ________ by leaving the population to seek vacant habitats.

melaa 47 1 Reply

6 years ago

One hypothesis of population regulation in animals is that increased crowding and social contact ...

One hypothesis of population regulation in animals is that increased crowding and social contact cause ________.

mat 34 1 Reply

6 years ago

A plant grown at high density will produce ________ seeds than the same plant grown at low density.

Iridium 85 1 Reply

6 years ago

The progressive decline in density and increase in biomass of remaining individuals in a population ...

The progressive decline in density and increase in biomass of remaining individuals in a population is known as ________-thinning.

melaa 48 1 Reply

6 years ago

Density-________ growth is the inverse relationship between population density and individual ...

Density-________ growth is the inverse relationship between population density and individual growth.

melaa 91 1 Reply

6 years ago

________ competition occurs when some competing individuals obtain enough resources for themselves ...

________ competition occurs when some competing individuals obtain enough resources for themselves while denying resources to others.

Iridium 72 1 Reply

6 years ago

Competition among individuals of the same species is referred to as ________ competition.

Iridium 78 1 Reply

6 years ago

The factors that influence the growth rate of a population in proportion to the size of the ...

The factors that influence the growth rate of a population in proportion to the size of the population are called density-________ factors.

Iridium 66 1 Reply

6 years ago

The maximum sustainable population size for the prevailing environment is called the ________ ...

The maximum sustainable population size for the prevailing environment is called the ________ capacity.

Iridium 70 1 Reply

6 years ago

The ________ model of population growth assumes that essential resources are unlimited and that the ...

The ________ model of population growth assumes that essential resources are unlimited and that the environment is constant.

melaa 46 1 Reply

6 years ago

Natural selection should favor plants producing small seeds in wet environments and plants that ...

Natural selection should favor plants producing small seeds in wet environments and plants that produce larger seeds in dry environments.

True or False?

mat 117 1 Reply

6 years ago

Weedy plants are considered to be K-strategists (True or false?)

Weedy plants are considered to be K-strategists.

True or False?

mat 50 1 Reply

6 years ago

Species that are r-strategists are usually larger than those that are K-strategists (True or false?)

Species that are r-strategists are usually larger than those that are K-strategists.

True or False?

melaa 73 1 Reply

6 years ago

In polygynous species of animals, males usually choose their mates, and females, because they are ...

In polygynous species of animals, males usually choose their mates, and females, because they are smaller and weaker, must comply.

True or False?

Iridium 66 1 Reply

6 years ago

In some species of birds, males with the brightest plumage have the fewest parasites (True or false?)

In some species of birds, males with the brightest plumage have the fewest parasites.

True or False?

Iridium 60 1 Reply

6 years ago

Sexual dimorphism occurs when males and females are so similar morphologically that they are ...

Sexual dimorphism occurs when males and females are so similar morphologically that they are difficult to distinguish.

True or False?

melaa 56 1 Reply

6 years ago

Polygyny is more likely to occur as differences in territory quality increase between territorial ...

Polygyny is more likely to occur as differences in territory quality increase between territorial males.

True or False?

melaa 47 1 Reply

6 years ago

Polyandry is more common than polygyny (True or false?)

Polyandry is more common than polygyny.

True or False?

melaa 51 1 Reply

6 years ago

The phenotype expressed by a single genotype can be affected by environmental conditions.True or ...

The phenotype expressed by a single genotype can be affected by environmental conditions.

True or False?

Iridium 53 1 Reply

6 years ago

Semelparity is favored when the external environment imposes high adult mortality relative to ...

Semelparity is favored when the external environment imposes high adult mortality relative to juvenile mortality, and mature individuals are unlikely to survive much longer.

True or False?

mat 44 1 Reply

6 years ago

Most species of vertebrates are iteroparous (True or false?)

Most species of vertebrates are iteroparous.

True or False?

Iridium 39 1 Reply

6 years ago

All species of animals provide parental care (True or false?)

All species of animals provide parental care.

True or False?

Iridium 47 1 Reply

6 years ago

As the number of offspring produced increases, the probability of their survival decreases.True or ...

As the number of offspring produced increases, the probability of their survival decreases.

True or False?

mat 52 1 Reply

6 years ago

Fecundity increases with body weight (True or false?)

Fecundity increases with body weight.

True or False?

Iridium 36 1 Reply

6 years ago

Defending a breeding territory increases an animal's probability of future survival (True or false?)

Defending a breeding territory increases an animal's probability of future survival.

True or False?

melaa 47 1 Reply

6 years ago

Extrinsic ecological factors such as the physical environment and the presence of predators or ...

Extrinsic ecological factors such as the physical environment and the presence of predators or competitors influence age specific rates of mortality and survivorship.

True or False?

mat 45 1 Reply

6 years ago

If infant mortality rates are declining, how can the overall population growth rate slow down?

If infant mortality rates are declining, how can the overall population growth rate slow down?
A) decreased adult survival
B) increased resource efficiency
C) decreased reproductive output
D) decreased demographic transition

melaa 87 1 Reply

6 years ago

According to the latest data, the global human population is predicted to

According to the latest data, the global human population is predicted to
A) continue to increase exponentially for the next 50 years.
B) peak at 10 billion.
C) decline precipitously to 1 billion.
D) increase at a steady rate for

mat 47 1 Reply

6 years ago

The K in the term K-strategist refers to

The K in the term K-strategist refers to
A) intrinsic rate of growth.
B) kill rate.
C) fecundity.
D) carrying capacity.

Iridium 57 1 Reply

6 years ago

Small and short-lived plants that rapidly colonize disturbed sites are classified by J. Phillip ...

Small and short-lived plants that rapidly colonize disturbed sites are classified by J. Phillip Grime as
A) C species.
B) R species.
C) S species.
D) X species.

melaa 65 1 Reply

6 years ago

An r-strategist is characterized by

An r-strategist is characterized by
A) slow population growth.
B) a slow rate of development.
C) a long life expectancy.
D) density-independent mortality.

melaa 98 1 Reply

6 years ago

Which of the following would be most attractive to a female hummingbird? A mate protecting a ...

Which of the following would be most attractive to a female hummingbird? A mate protecting a territory with
A) many predators.
B) many nectar feeding animals.
C) many nectar bearing flowers.
D) many other males.

Iridium 41 1 Reply

6 years ago

A female exhibits two major approaches in choosing a mate, selecting either the phenotypic ...

A female exhibits two major approaches in choosing a mate, selecting either the phenotypic characteristics of the mate or the
A) number of other females the male has in his harem.
B) ability of the male to provide resources.
C) number

melaa 84 1 Reply

6 years ago

An individual with a large, high quality territory is likely to have

An individual with a large, high quality territory is likely to have
A) a reduced number of offspring.
B) decreased male-male interactions.
C) increased mating success.
D) reduced resources.

Iridium 44 1 Reply

6 years ago

Heightened male to male aggression around female mates is likely the result of

Heightened male to male aggression around female mates is likely the result of
A) intersexual selection.
B) intrasexual selection.
C) polygamy.
D) delayed sexual maturity.

melaa 66 1 Reply

6 years ago

The preferential selection by a female of a male peacock with the longest tail feathers and the most ...

The preferential selection by a female of a male peacock with the longest tail feathers and the most eyespots on the tail feathers is an example of
A) polandry.
B) polygyny.
C) intrasexual selection.
D) intersexual selection.

mat 68 1 Reply

6 years ago

The mating system in which males and females mate with one or many of the opposite sex and form no ...

The mating system in which males and females mate with one or many of the opposite sex and form no pair bond is known as
A) monogamy.
B) polygyny.
C) polyandry.
D) promiscuity.

mat 58 1 Reply

6 years ago

When one male mates and stays with one female, the relationship is called

When one male mates and stays with one female, the relationship is called
A) polygamous.
B) monogamous.
C) monoecious.
D) promiscuous.

melaa 45 1 Reply

6 years ago

A sexual system where a male gorilla mates with several females, forming pair bonds with each of ...

A sexual system where a male gorilla mates with several females, forming pair bonds with each of them, is called
A) promiscuity.
B) monogamy.
C) polyandry.
D) polygyny.

melaa 34 1 Reply