What is the principle of biogenesis?
|A)||the theory that life started on Earth as a result of organisms being brought to Earth by an asteroid|
|B)||the theory that all life on Earth evolved from a first single cell|
|C)||the theory that life slowly evolves toward higher forms of complexity and intelligence|
|D)||the theory that a living organism can arise only from another living organism|
|E)||the theory that life can be described through mathematical equations.|
Which of the following is a characteristic of all living things?
|A)||Very few living things go through stages of development.|
|B)||All living things depend on an external source of energy.|
|C)||All living things are composed of two or more cells.|
|D)||All living things reproduce sexually by a male organism uniting with a female organism.|
|E)||All living things respond equally to the sense of sight.|
In what way does a plant cell differ from an animal cell?
|A)||Plant cells are larger than animal cells.|
|B)||Plant cells do not store water and other liquids.|
|C)||Plant cells do not carry on photosynthesis, but animal cells do.|
|D)||Plant cells contain a nucleus, but animal cells do not.|
|E)||Plant cells contain a cell wall and chloroplasts, but animal cells do not.|
What is the best description of the role played by organelles in a living cell?
|A)||Organelles are structures that carry out all of the processes that take place in a living cell.|
|B)||Organelles form the outer membrane of a cell and give a cell its shape.|
|C)||Organelles protect a cell from invasion by viruses.|
|D)||Organelles carry food energy from the blood to the interior of a cell.|
|E)||Organelles combine to form tissue from which organs are made.|
What is the best description of the process known as metamorphosis?
|A)||Metamorphosis is the period during which a fertilized egg cell differentiates to form different body organs.|
|B)||Metamorphosis is the process by which certain animals go through several very different life stages.|
|C)||Metamorphosis is the growth of a young organism into a different type of organism.|
|D)||Metamorphosis is the final stage in the life of an organism, a time when the organism prepares for death.|
|E)||Metamorphosis is the splitting of a fertilized egg cell into two identical organisms shortly after fertilization—a process that leads to identical twins.|
What is the main feature that distinguishes amphibians from fish or reptiles?
|A)||Amphibians do not live near water.|
|B)||Amphibians do not lay eggs.|
|C)||Amphibians breath through external gills throughout their entire lives.|
|D)||Amphibians have two or more different stages in their lives.|
|E)||Most amphibians are cold blooded, but very few fish or reptiles are cold blooded.|
Which of the following statements is true?
|A)||Female mammals have milk-producing mammary glands, but female birds do not.|
|B)||Female mammals produce eggs that are internally fertilized by male mammals, but female birds do not.|
|C)||Mammals have lungs and breathe air, but birds do not.|
|D)||Mammals are protective of their young, but birds never are.|
|E)||Mammals rely on the senses of sight and sound, but birds rely mainly on smell.|
What five senses do all complex animals have?
|A)||sight, hearing, thinking, smell, intuition|
|B)||hearing, thinking, smell, taste, touch|
|C)||sight, hearing, smell, taste, touch|
|D)||sight, smell, taste, touch, intuition|
|E)||hearing, smell, taste, dreaming, touch|
What is an ecosystem?
|A)||all the natural resources available to a particular organism|
|B)||a community of organisms, together with all available natural resources and habitats used by those organisms|
|C)||a habitat, or home, for one or more organisms|
|D)||all the organisms in a particular food web|
|E)||a group of organisms living around a pond|
In Darwin's theory of evolution, what is the process Darwin called natural selection?
|A)||the process of selecting the gender (sex) of an offspring|
|B)||the process of an organism adapting to a habitat for which it is best suited|
|C)||the process of an organism learning special skills so as to be better suited to its habitat|
|D)||the process of an organism choosing food sources that are most nutritious for that organism|
|E)||the process by which individuals with favorable traits within a species are most likely to survive and pass those traits on to offspring|