Front

Biological fitness is defined as

Back

the ability of an organism to survive and reproduce

Tags

NGSS.MS-LS4-4

Front

Which of the following is NOT an example of evolution?
- Over many generations, wild teosinte has become corn.
- When the Grand Canyon formed, it geographically divided a squirrel population into two populations, which developed into distinct species.
- A frog begins its life as a tadpole, but becomes an amphibian.
- Finches in the Galapagos islands have diversified over time into many species each well-suited for eating a particular type of food.

Back

A frog begins its life as a tadpole, but becomes an amphibian.

Front

Which of the following statements is INCORRECT?

• Without mutations, there would be no evolution
• Mutations create diversity among life-forms
• Mutations are the source of new phenotypes
• Mutations happen when there is a need for a new trait in a population

Back

Mutations happen when there is a need for a new trait in a population

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Front

The wings of a bird and the wings of a beetle are considered __________.

Back

analogous structures

Tags

NGSS.MS-LS4-2

Front

What is a vestigial structure?

Back

A structure that has lost its function but is still part of the organism

Tags

NGSS.MS-LS4-2

Front

Which of the following is evidence of a common ancestor?

• Vestigial structures
• Fossil record
• Similarities in the embryo
• All of these

Back

All of these

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Front

The structures of the front flipper of a whale and the forearm of a wolf have similar bone structure and derive from a common ancestor. This is an example of __________.

Back

homologous structures

Tags

NGSS.MS-LS4-2

Front

How did Darwin's finches help support his theory of evolution?

Back

The size and shape of their beaks varied due to the different environments they lived.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Front

Structures that were once functional in the past but no longer serve a purpose due to evolutionary adaptations and physiological changes are referred to as __________ structures.

Back

vestigial structures

Tags

NGSS.MS-LS4-2

Front

Which of the following is one of Charles Darwin’s theories about evolution and natural selection?

Back

New species that appear in the fossil record are actually descendants of older species

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2