Use the following to answer questions : There are two species of microbes,A and B,which can be grown together or separately.If GS1U1B1AS1U1B0 is the per capita growth rate of species A,GS1U1B1BS1U1B0 is the per capita growth rate of species B,DS1U1B1AS1U1B0 is the density of species A,and DS1U1B1BS1U1B0 is the density of species B,the per capita growth rates for each are: GS1U1B1AS1U1B0 = 0.14 - 0.006 DS1U1B1AS1U1B0 - 0.04 DS1U1B1BS1U1B0 GS1U1B1BS1U1B0 = 0.05 - 0.008 DS1U1B1BS1U1B0 + 0.009 DS1U1B1AS1U1B0 -The interaction between species A and B most closely resembles

A) competition. B) a consumer-resource interaction,where A is the resource and B is the consumer. C) a consumer-resource interaction,where B is the resource and A is the consumer. D) mutualism. E) commensalism. A) competition. B) a consumer-resource interaction,where A is the resource and B is the consumer. C) a consumer-resource interaction,where B is the resource and A is the consumer. D) mutualism. E) commensalism.

A) usually perform less well than native species because they lack adaptations to counter predators. B) usually perform less well than native species because they lack adaptations to counter pathogens. C) can harm native species that lack adaptations to counter the competing invasive. D) usually reproduce slowly. E) do not spread from their original point of introduction. A) usually perform less well than native species because they lack adaptations to counter predators. B) usually perform less well than native species because they lack adaptations to counter pathogens. C) can harm native species that lack adaptations to counter the competing invasive. D) usually reproduce slowly. E) do not spread from their original point of introduction.

Use the following to answer questions : There are two species of microbes,A and B,which can be grown together or separately.If GS1U1B1AS1U1B0 is the per capita growth rate of species A,GS1U1B1BS1U1B0 is the per capita growth rate of species B,DS1U1B1AS1U1B0 is the density of species A,and DS1U1B1BS1U1B0 is the density of species B,the per capita growth rates for each are: GS1U1B1AS1U1B0 = 0.14 - 0.006 DS1U1B1AS1U1B0 - 0.04 DS1U1B1BS1U1B0 GS1U1B1BS1U1B0 = 0.05 - 0.008 DS1U1B1BS1U1B0 + 0.009 DS1U1B1AS1U1B0 -If the density of A is 10 and the density of B is 6,the growth rate(s)of

A) A and B are both positive. B) A is positive and of B is zero. C) A is positive and of B is negative. D) A is negative and of B is positive. E) A and B are both negative. A) A and B are both positive. B) A is positive and of B is zero. C) A is positive and of B is negative. D) A is negative and of B is positive. E) A and B are both negative.

Exam 43: Ecological and Evolutionary Consequences of Interactions Within and Among Species

Explore all topics

Which participant would receive an increase in its population growth rate from a given interspecific interaction?

(Multiple Choice)

4.7/5

(44)

Question 41

A fly and a beetle both use a particular species of plant to lay eggs in.The larvae from both the fly and the beetle develop on the plant.Removal experiments show that the moth and the beetle each perform better on the plant when the other species is removed.The relationship between the moth and the beetle would be characterized as _______.

(Essay)

4.8/5

(40)

Question 42

The type of interaction in which one partner is harmed but there is no effect on the other is called _______.

(Essay)

4.9/5

(39)

Question 43

Use the following to answer questions : There are two species of microbes,A and B,which can be grown together or separately.If G_A is the per capita growth rate of species A,G_B is the per capita growth rate of species B,D_A is the density of species A,and D_B is the density of species B,the per capita growth rates for each are: G_A = 0.14 - 0.006 D_A - 0.04 D_B G_B = 0.05 - 0.008 D_B + 0.009 D_A -The interaction between species A and B most closely resembles

(Multiple Choice)

4.7/5

(32)

Question 44

Non-native species of organisms that reach high population densities and spread through the novel settings are said to be _______.

(Essay)

4.9/5

(38)

Question 45

An indigenous population in South America uses small quantities of a plant substance as a spice to enhance the taste of food.In larger quantities,this substance can be toxic.What is the likely evolutionary explanation for this substance?

(Multiple Choice)

4.8/5

(33)

Question 46

The relationship between Merriam's kangaroo rats and large-seeded native bunchgrasses in southern Arizona demonstrates that

(Multiple Choice)

4.9/5

(44)

Question 47

While pursuing prey,a bear smashes into and destroys a bush,and then continues pursuing its prey.The relationship between the bear and the bush would be described as

(Multiple Choice)

4.8/5

(42)

Question 48

Two similar species of lemurs exist in Madagascar.One species eats leaves from the understory of trees,and the other eats leaves from the top of the trees.This phenomenon would be best described as

(Multiple Choice)

4.7/5

(29)

Question 49

Overfishing of tuna (a large fish)causes an increase in smaller fish,and these fish eat more plankton than usual.This phenomenon is an example of a(n)_______.

(Essay)

4.9/5

(38)

Question 50

Which example is a mutualistic interaction?

(Multiple Choice)

4.8/5

(33)

Question 51

Which interspecific interaction has negative effects for both species involved?

(Multiple Choice)

4.9/5

(33)

Question 52

Use the following to answer questions : A biologist examines three species of plants (A,B,C)and finds the patterns shown in the chart below.The effect by a species is the extent to which any individual of that species lowers the per capita growth rate of a given species.The effect on a species is how much the per capita growth rate of a species is affected by a given species.Thus,every individual of species A would lower the growth rate of species C by 0.017;and every individual of species C would lower the growth rate of species A by 0.014. -For which species is intraspecific competition most intense? Explain.

(Essay)

4.8/5

(36)

Question 53

Invasive species

(Multiple Choice)

4.9/5

(40)

Question 54

During the 1930s,the Russian ecologist _______ pioneered studies of competition using Paramecium.

(Essay)

4.8/5

(37)

Question 55

Which statement about Heliconius butterflies,which are poisonous to many of their predators,is true?

(Multiple Choice)

4.9/5

(25)

Question 56

A predatory fish evolves adaptations that make it more adept at catching smaller fish.In turn,the smaller fish evolve means to be evasive,leading to more selection on the predators to be still better able at catching their prey.The interaction between the two species is an example of an evolutionary _______.

(Essay)

4.8/5

(27)

Question 57

Use the following to answer questions : There are two species of microbes,A and B,which can be grown together or separately.If G_A is the per capita growth rate of species A,G_B is the per capita growth rate of species B,D_A is the density of species A,and D_B is the density of species B,the per capita growth rates for each are: G_A = 0.14 - 0.006 D_A - 0.04 D_B G_B = 0.05 - 0.008 D_B + 0.009 D_A -If the density of A is 10 and the density of B is 6,the growth rate(s)of

(Multiple Choice)

4.9/5

(44)

Question 58

What do pollinators usually get out of the mutualistic interaction in which they participate?

(Multiple Choice)

4.8/5

(27)

Question 59

If secondary consumers are the highest trophic level in a community,how many trophic levels does that community have (not counting decomposers)?

(Multiple Choice)

4.9/5

(38)

Question 60

Showing 41 - 60 of 114

Exam 43: Ecological and Evolutionary Consequences of Interactions Within and Among Species

Which participant would receive an increase in its population growth rate from a given interspecific interaction?

The type of interaction in which one partner is harmed but there is no effect on the other is called _______.

Non-native species of organisms that reach high population densities and spread through the novel settings are said to be _______.

An indigenous population in South America uses small quantities of a plant substance as a spice to enhance the taste of food.In larger quantities,this substance can be toxic.What is the likely evolutionary explanation for this substance?

The relationship between Merriam's kangaroo rats and large-seeded native bunchgrasses in southern Arizona demonstrates that

While pursuing prey,a bear smashes into and destroys a bush,and then continues pursuing its prey.The relationship between the bear and the bush would be described as

Two similar species of lemurs exist in Madagascar.One species eats leaves from the understory of trees,and the other eats leaves from the top of the trees.This phenomenon would be best described as

Overfishing of tuna (a large fish)causes an increase in smaller fish,and these fish eat more plankton than usual.This phenomenon is an example of a(n)_______.

Which example is a mutualistic interaction?

Which interspecific interaction has negative effects for both species involved?

Invasive species

During the 1930s,the Russian ecologist _______ pioneered studies of competition using Paramecium.

Which statement about Heliconius butterflies,which are poisonous to many of their predators,is true?

What do pollinators usually get out of the mutualistic interaction in which they participate?

If secondary consumers are the highest trophic level in a community,how many trophic levels does that community have (not counting decomposers)?

Introduction

The Chemistry and Energy of Life

Nucleic Acids, Proteins, and Enzymes

Cells: the Working Units of Life

Cell Membranes and Signaling

Pathways That Harvest and Store Chemical Energy

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

DNA and Its Role in Heredity

From Dna to Protein: Gene Expression

Regulation of Gene Expression

Genomes

Biotechnology

Genes, Development, and Evolution

Processes of Evolution

Reconstructing and Using Phylogenies

Speciation

The History of Life on Earth

Bacteria, Archaea, and Viruses

The Origin and Diversification of Eukaryotes

The Evolution of Plants

The Evolution and Diversity of Fungi

Animal Origins and Diversity

The Plant Body

Plant Nutrition and Transport

Plant Growth and Development

Reproduction of Flowering Plants

Plants in the Environment

Fundamentals of Animal Function

Nutrition and Digestion

Breathing

Circulation

Muscle and Movement

Neurons, Sense Organs, and Nervous Systems

Nervous and Endocrine Control

Water and Salts: Excretion

Animal Reproduction

Animal Development

Immunology: Animal Defense Systems

Animal Behavior

The Distribution of Earths Ecological Systems

Populations

Ecological Communities

The Global Ecosystem

Filters