Question 1

Most of the Earth's phosphorous is in the form of

Accepted Answer

A)  phosphoric acid. 
B)  elemental phosphorous. 
C)  phosphate. 
D)  phosphorous cations. 
E)  carbonate. 
A)  phosphoric acid. 
B)  elemental phosphorous. 
C)  phosphate. 
D)  phosphorous cations. 
E)  carbonate.

Question 2

MATCHING
The figure below refers to a food chain in a tallgrass prairie.Examine it and answer the questions by matching each letter with the number with which it best corresponds.
  
-second trophic level

Accepted Answer

The answer of MATCHING
The figure below refers to a food...

Question 3

Which of the following rocks are formed from the carbon shells of marine organisms?

Accepted Answer

A)  limestone 
B)  granite 
C)  shale 
D)  rhyolite 
E)  gneiss 
A)  limestone 
B)  granite 
C)  shale 
D)  rhyolite 
E)  gneiss

Question 4

Which of the following represents an early stage in primary succession?

Accepted Answer

A)  pine trees 
B)  mosses and lichen of bare rock 
C)  weedy annual plants in an open field 
D)  climax species in succession 
E)  fields of food crops 
A)  pine trees 
B)  mosses and lichen of bare rock 
C)  weedy annual plants in an open field 
D)  climax species in succession 
E)  fields of food crops

Question 5

Four of the five answers listed below are heterotrophic.Select the EXCEPTION.

Accepted Answer

A)  consumers 
B)  carnivores 
C)  herbivores 
D)  parasites 
E)  producers 
A)  consumers 
B)  carnivores 
C)  herbivores 
D)  parasites 
E)  producers

Question 6

Many introduced species have had deleterious effects on communities and ecosystems because

Accepted Answer

A)  coevolved parasites and pathogens are absent. 
B)  the introduced species are long-lived. 
C)  predators prefer the introduced species, and the local prey therefore proliferate to dangerously high levels. 
D)  the community from which they came lost an important predator, competitor, or parasite. 
E)  human beings do not know how to appreciate them. 
A)  coevolved parasites and pathogens are absent. 
B)  the introduced species are long-lived. 
C)  predators prefer the introduced species, and the local prey therefore proliferate to dangerously high levels. 
D)  the community from which they came lost an important predator, competitor, or parasite. 
E)  human beings do not know how to appreciate them.

Question 7

Hover flies like to drop in at outdoor picnics to sample the sweets,but the reaction of humans is to flee the scene because of the flies' uncanny resemblance to bees.Thus the survival of Hover flies is enhanced by

Accepted Answer

A)  mimicry. 
B)  display behavior. 
C)  warning coloration. 
D)  chemical defenses. 
E)  camouflage. 
A)  mimicry. 
B)  display behavior. 
C)  warning coloration. 
D)  chemical defenses. 
E)  camouflage.

Question 8

Classification.Answer the questions in reference to the five kinds of species interactions listed below.
a.competition
b.predation
c.mutualism
d.commensalism
-The Venus fly trap catches insects in its trap which it kills and digests with enzymes.

Accepted Answer

The answer of Classification.Answer the questions in reference to the...

Question 9

Energy flow in an ecosystem is

Accepted Answer

A)  cyclical. 
B)  one-way. 
C)  two-way. 
D)  reversible under different conditions. 
E)  a conservation mechanism. 
A)  cyclical. 
B)  one-way. 
C)  two-way. 
D)  reversible under different conditions. 
E)  a conservation mechanism.

Question 10

MATCHING
The figure below refers to a food chain in a tallgrass prairie.Examine it and answer the questions by matching each letter with the number with which it best corresponds.
  
-primary consumer

Accepted Answer

The answer of MATCHING
The figure below refers to a food...

Question 11

Two species of closely related squirrels both feed on acorns produced by oak trees.One species feed exclusively near the top of the tree and the other feeds exclusively towards the bottom of the tree.This is an example of

Accepted Answer

A)  competitive exclusion. 
B)  resource partitioning. 
C)  mutualism. 
D)  commensalism. 
E)  mimicry. 
A)  competitive exclusion. 
B)  resource partitioning. 
C)  mutualism. 
D)  commensalism. 
E)  mimicry.

Question 12

Phorid flies lay their eggs inside the bodies of various insects and spiders.When the larvae hatch they consume the body of the 'host' from the inside out.The phorid fly is an example of

Accepted Answer

A)  a brood parasite. 
B)  a parasitoid. 
C)  a commensalist. 
D)  a competitive excluder. 
E)  more than one of these. 
A)  a brood parasite. 
B)  a parasitoid. 
C)  a commensalist. 
D)  a competitive excluder. 
E)  more than one of these.

Question 13

Which of the following organisms was introduced in the United States in order to control the population of RIFAs?

Accepted Answer

A)  houseflies 
B)  fruit flies 
C)  phorid flies 
D)  hanging flies 
E)  caddis flies 
A)  houseflies 
B)  fruit flies 
C)  phorid flies 
D)  hanging flies 
E)  caddis flies

Question 14

MATCHING
The figure below refers to a food chain in a tallgrass prairie.Examine it and answer the questions by matching each letter with the number with which it best corresponds.
  
-second-level consumer

Accepted Answer

The answer of MATCHING
The figure below refers to a food...

Question 15

Animals obtain minerals such as phosphorus

Accepted Answer

A)  primarily dissolved in drinking water. 
B)  by inhalation. 
C)  by eating meat. 
D)  by eating plants. 
E)  by eating meat and by eating plants. 
A)  primarily dissolved in drinking water. 
B)  by inhalation. 
C)  by eating meat. 
D)  by eating plants. 
E)  by eating meat and by eating plants.

Question 16

Which of the following is a primary consumer?

Accepted Answer

A)  tiger 
B)  elephant 
C)  eagle 
D)  hyena 
E)  snake 
A)  tiger 
B)  elephant 
C)  eagle 
D)  hyena 
E)  snake

Question 17

Some ___ have enzymes to break the bonds of atmospheric nitrogen and use it for the metabolism of proteins and other nitrogen containing molecules.

Accepted Answer

A)  fungi 
B)  bacteria 
C)  plants 
D)  protists 
E)  fungi, bacteria, and protists 
A)  fungi 
B)  bacteria 
C)  plants 
D)  protists 
E)  fungi, bacteria, and protists

Question 18

Mistletoe is a plant that grows commonly on the limbs of hawthorn trees and extracts nutrients from its host plant.The relationship between mistletoe and the hawthorn tree is

Accepted Answer

A)  commensalism. 
B)  mutualism. 
C)  competition. 
D)  predation. 
E)  parasitism. 
A)  commensalism. 
B)  mutualism. 
C)  competition. 
D)  predation. 
E)  parasitism.

Exam 17: Communities and Ecosystems

Most of the Earth's phosphorous is in the form of

MATCHING The figure below refers to a food chain in a tallgrass prairie.Examine it and answer the questions by matching each letter with the number with which it best corresponds. -second trophic level

Which of the following rocks are formed from the carbon shells of marine organisms?

Which of the following represents an early stage in primary succession?

Four of the five answers listed below are heterotrophic.Select the EXCEPTION.

Many introduced species have had deleterious effects on communities and ecosystems because

Hover flies like to drop in at outdoor picnics to sample the sweets,but the reaction of humans is to flee the scene because of the flies' uncanny resemblance to bees.Thus the survival of Hover flies is enhanced by

Classification.Answer the questions in reference to the five kinds of species interactions listed below. a.competition b.predation c.mutualism d.commensalism -The Venus fly trap catches insects in its trap which it kills and digests with enzymes.

Energy flow in an ecosystem is

MATCHING The figure below refers to a food chain in a tallgrass prairie.Examine it and answer the questions by matching each letter with the number with which it best corresponds. -primary consumer

Two species of closely related squirrels both feed on acorns produced by oak trees.One species feed exclusively near the top of the tree and the other feeds exclusively towards the bottom of the tree.This is an example of

Phorid flies lay their eggs inside the bodies of various insects and spiders.When the larvae hatch they consume the body of the 'host' from the inside out.The phorid fly is an example of

Which of the following organisms was introduced in the United States in order to control the population of RIFAs?

MATCHING The figure below refers to a food chain in a tallgrass prairie.Examine it and answer the questions by matching each letter with the number with which it best corresponds. -second-level consumer

Animals obtain minerals such as phosphorus

Which of the following is a primary consumer?

Some ___ have enzymes to break the bonds of atmospheric nitrogen and use it for the metabolism of proteins and other nitrogen containing molecules.

Mistletoe is a plant that grows commonly on the limbs of hawthorn trees and extracts nutrients from its host plant.The relationship between mistletoe and the hawthorn tree is

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

DNA Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

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