Question 1

Bacteria can be distinguished from most other organisms because

Accepted Answer

A)  bacterial cells have membrane-bound organelles. 
B)  bacterial DNA is not located within an organelle. 
C)  bacteria reproduce by splitting in two. 
D)  bacteria are generally single-celled. 
A)  bacterial cells have membrane-bound organelles. 
B)  bacterial DNA is not located within an organelle. 
C)  bacteria reproduce by splitting in two. 
D)  bacteria are generally single-celled.

Question 2

Although seeming quite distinct, cotton, morphine, and flour are all obtained from flowering plants, otherwise known as __________

Accepted Answer

The answer of Although seeming quite distinct, cotton, morphine, and...

Question 3

The earliest lineage of organisms living today are the _______.

Accepted Answer

The answer of The earliest lineage of organisms living today...

Question 4

Which of the following investigations would be the least likely to provide useful information about the relationships within the kingdom Animalia?

Accepted Answer

A)  which developmental sequences occur during embryonic growth 
B)  an examination of the construction of the cell membrane 
C)  a comparative examination of the proteins used in photosynthesis 
D)  in what way various organs and organ systems have become modified over time 
A)  which developmental sequences occur during embryonic growth 
B)  an examination of the construction of the cell membrane 
C)  a comparative examination of the proteins used in photosynthesis 
D)  in what way various organs and organ systems have become modified over time

Question 5

Relationships among the animals having body cavities can be easily determined by examination of embryonic development; vertebrates and echinoderms are grouped together because in each

Accepted Answer

A)  the infolding that forms the body cavity eventually becomes the anus. 
B)  life starts as a single fertilized cell and then becomes multicellular. 
C)  the death of specific cells creates the internal hollow that eventually becomes the body cavity. 
D)  the infolding that forms the body cavity eventually becomes the mouth. 
A)  the infolding that forms the body cavity eventually becomes the anus. 
B)  life starts as a single fertilized cell and then becomes multicellular. 
C)  the death of specific cells creates the internal hollow that eventually becomes the body cavity. 
D)  the infolding that forms the body cavity eventually becomes the mouth.

Question 6

Bacteria, Archaea, and Eukarya are three _______ under the most commonly used current classification system.

Accepted Answer

The answer of Bacteria, Archaea, and Eukarya are three _______...

Question 7

Which of the following is not one of the three major ways of classifying organisms?

Accepted Answer

A)  the Linnaean hierarchy 
B)  the Darwinian hierarchy 
C)  domains 
D)  an evolutionary tree 
A)  the Linnaean hierarchy 
B)  the Darwinian hierarchy 
C)  domains 
D)  an evolutionary tree

Question 8

The kingdom Protista is quite diverse and the relationship between its various members is unclear. The best method of clarifying those relationships will require that biologists

Accepted Answer

A)  remove the kingdom from Eukarya and place it in its own domain. 
B)  match each of the protist traits with the corresponding animal trait of the common ancestor. 
C)  separate the eukaryotic protists from the prokaryotic protists. 
D)  create an evolutionary tree for the group using comparative DNA data. 
A)  remove the kingdom from Eukarya and place it in its own domain. 
B)  match each of the protist traits with the corresponding animal trait of the common ancestor. 
C)  separate the eukaryotic protists from the prokaryotic protists. 
D)  create an evolutionary tree for the group using comparative DNA data.

Question 9

Imagine the discovery of an undescribed nonphotosynthetic multicellular organism. To determine whether it is a(n) _______, you need to examine it microscopically to determine if its _______

Accepted Answer

A)  animal or fungi; cells have cell walls. 
B)  animal or plant; cells have nuclei. 
C)  plant or fungi; cells have cell walls 
D)  animal or fungi; cells contain DNA. 
A)  animal or fungi; cells have cell walls. 
B)  animal or plant; cells have nuclei. 
C)  plant or fungi; cells have cell walls 
D)  animal or fungi; cells contain DNA.

Question 10

Which of the following groups has been the most recent to evolve?

Accepted Answer

A)  Bacteria 
B)  Fungi 
C)  Ciliates 
D)  Archaea 
A)  Bacteria 
B)  Fungi 
C)  Ciliates 
D)  Archaea

Question 11

Lichens are formed by an association between

Accepted Answer

A)  algae and plants. 
B)  fungi and plants. 
C)  algae and fungi. 
D)  protists and algae. 
A)  algae and plants. 
B)  fungi and plants. 
C)  algae and fungi. 
D)  protists and algae.

Question 12

Mitochondria, the energy-processing organelles in eukaryotic cells, have their own DNA, separate from that of the cell's nucleus. Which of the following choices best explains the presence of mitochondria in eukaryotic cells?

Accepted Answer

A)  An ancestral prokaryote engulfed and retained a separate energy-processing prokaryotic cell. 
B)  Mitochondria are formed when a eukaryotic cell undergoes fission. 
C)  Mitochondria are separate organisms that fuse with eukaryotic cells in much the same fashion as algae and fungi form lichens. 
D)  A prokaryote and a eukaryote fuse to form mitochondria. 
A)  An ancestral prokaryote engulfed and retained a separate energy-processing prokaryotic cell. 
B)  Mitochondria are formed when a eukaryotic cell undergoes fission. 
C)  Mitochondria are separate organisms that fuse with eukaryotic cells in much the same fashion as algae and fungi form lichens. 
D)  A prokaryote and a eukaryote fuse to form mitochondria.

Question 13

The current classification system used by biologists is

Accepted Answer

A)  complex and unchanging. 
B)  universally accepted by all biologists. 
C)  based on four generalized types of living organism: the Bacteria, the Archaea, the Eukarya, and the Protista. 
D)  updated and revised whenever new information becomes available. 
A)  complex and unchanging. 
B)  universally accepted by all biologists. 
C)  based on four generalized types of living organism: the Bacteria, the Archaea, the Eukarya, and the Protista. 
D)  updated and revised whenever new information becomes available.

Question 14

Prokaryotic genomes

Accepted Answer

A)  do not contain DNA. 
B)  are relatively small, containing only DNA that is actively used. 
C)  are relatively large, containing extra DNA that serves no known function. 
D)  contain about four times as much DNA as eukaryotic genomes. 
A)  do not contain DNA. 
B)  are relatively small, containing only DNA that is actively used. 
C)  are relatively large, containing extra DNA that serves no known function. 
D)  contain about four times as much DNA as eukaryotic genomes.

Question 15

Sponges are considered to be the most ancient of animals; although multicellular, sponges have not developed the _______ present in all other animals.

Accepted Answer

The answer of Sponges are considered to be the most...

Question 16

Viral classification and biology has been challenging; presently most biologists agree that viruses

Accepted Answer

A)  should be classified as members of the kingdom Protista. 
B)  are constructed from a protein wrapped around DNA or RNA. 
C)  use a photosynthetic process more similar to bacteria than plants. 
D)  should be classified as autochemotrophic. 
A)  should be classified as members of the kingdom Protista. 
B)  are constructed from a protein wrapped around DNA or RNA. 
C)  use a photosynthetic process more similar to bacteria than plants. 
D)  should be classified as autochemotrophic.

Question 17

The kingdom Plantae consists of four major groups; the _____ are believed to have been the first to appear.

Accepted Answer

A)  angiosperms 
B)  gymnosperm 
C)  ferns 
D)  mosses 
A)  angiosperms 
B)  gymnosperm 
C)  ferns 
D)  mosses

Question 18

The group with the greatest diversity in the ways it obtains carbon and energy is

Accepted Answer

A)  the Fungi. 
B)  the Animalia. 
C)  the prokaryotes. 
D)  the Plantae. 
A)  the Fungi. 
B)  the Animalia. 
C)  the prokaryotes. 
D)  the Plantae.

Question 19

What capability did the development of a vascular system provide?

Accepted Answer

A)  greater efficiency at capturing the energy from sunlight 
B)  greater efficiency for nutrient transport and structural support 
C)  permitted plant life to establish on land 
D)  allowed the developing embryo to remain protected until better growth conditions were available 
A)  greater efficiency at capturing the energy from sunlight 
B)  greater efficiency for nutrient transport and structural support 
C)  permitted plant life to establish on land 
D)  allowed the developing embryo to remain protected until better growth conditions were available

Question 20

Protists may superficially resemble organisms in the other kingdoms; one exception is the kingdom _____, whose members do not resemble protists in any way.

Accepted Answer

A)  Bacteria 
B)  Fungi 
C)  Plantae 
D)  Animalia. 
A)  Bacteria 
B)  Fungi 
C)  Plantae 
D)  Animalia.

Exam 3: Major Groups of Living Organisms

Bacteria can be distinguished from most other organisms because

Although seeming quite distinct, cotton, morphine, and flour are all obtained from flowering plants, otherwise known as __________

The earliest lineage of organisms living today are the _______.

Which of the following investigations would be the least likely to provide useful information about the relationships within the kingdom Animalia?

Relationships among the animals having body cavities can be easily determined by examination of embryonic development; vertebrates and echinoderms are grouped together because in each

Bacteria, Archaea, and Eukarya are three _______ under the most commonly used current classification system.

Which of the following is not one of the three major ways of classifying organisms?

The kingdom Protista is quite diverse and the relationship between its various members is unclear. The best method of clarifying those relationships will require that biologists

Imagine the discovery of an undescribed nonphotosynthetic multicellular organism. To determine whether it is a(n) _______, you need to examine it microscopically to determine if its _______

Which of the following groups has been the most recent to evolve?

Lichens are formed by an association between

Mitochondria, the energy-processing organelles in eukaryotic cells, have their own DNA, separate from that of the cell's nucleus. Which of the following choices best explains the presence of mitochondria in eukaryotic cells?

The current classification system used by biologists is

Prokaryotic genomes

Sponges are considered to be the most ancient of animals; although multicellular, sponges have not developed the _______ present in all other animals.

Viral classification and biology has been challenging; presently most biologists agree that viruses

The kingdom Plantae consists of four major groups; the _____ are believed to have been the first to appear.

The group with the greatest diversity in the ways it obtains carbon and energy is

What capability did the development of a vascular system provide?

Protists may superficially resemble organisms in the other kingdoms; one exception is the kingdom _____, whose members do not resemble protists in any way.

The Nature of Science and the Characteristics of Life

Organizing the Diversity of Life

Chemical Building Blocks

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

DNA

From Gene to Protein

Control of Gene Expression

DNA Technology

How Evolution Works

Evolution of Populations

Adaptation and Speciation

The Evolutionary History of Life

Maintaining the Internal Environment

Animal Nutrition and Digestion

Gas Exchange

The Circulatory System

Animal Hormones

The Nervous System

Sensing the Environment

Skeletons, Muscles, and Movement

Defenses against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

The Biosphere

Growth of Populations

Interactions among Organisms

Communities of Organisms

Ecosystems

Global Change

Biodiversity and People

Cancer: Cell Division Out of Control

Harnessing the Human Genome

Humans and Evolution

Smoking--Beyond Lung Cancer

Feeding a Hungry Planet

Building a Sustainable Society

Filters

Imagine the discovery of an undescribed nonphotosynthetic multicellular organism. To determine whether it is a(n) _, you need to examine it microscopically to determine if its _