SCI CH 1 L 1+4

Of the following, the best definition of evolution is _____

A gradual change in a species over time

Multicellular organisms that make their own food belong to the _____ kingdom

Plant

Organisms belonging to which kingdom are all autotrophs?

Plants

Two groups of organisms with similar characteristics may share _____

A Common Ancestor

Which of the following is NOT true about bacteria?

Bacteria have a cell nucleus

The theory of evolution was proposed by _____

Charles Darwin

To determine whether two organisms are related, scientists may compare the _____ of their cells

Chemical Makeup

If two species have very similar structures, they may have evolved from a(n) _____

Common Ancestor

In the modern system of classification, the three domains are Bacteria, Archaea,and _____

Eukarya

_____ is the process by which individuals that are better adapted to their environment are more likely to survive and reproduce

Natural Selection

The dense area of a cell that contains nucleic acids is the _____

Nucleus

One thing a branching tree diagram shows is the _____ in which specific characteristics may have evolved

Order

Which statement is true?

Species with similar evolutionary histories are classified more closely together

Which of the following is true about animals?

Animals are eukaryotes

Similar organisms that are NOT related are an example of _____

Convergent Evolution

Most members of the _____ kingdom feed by absorbing nutrients from dead or decaying organisms

Fungi

An organism whose cells lack a nucleus is called a(n) _____

Prokaryotes

Marine dinoflagellates and seaweed are members of the _____ kingdom

Protists

A _____ is usually a homologous structure that is shared by all organisms in a group

Shared Derived Characteristic

Bacteria and archaea are placed in separate kingdoms because _____

Their structure and chemical makeup differs