Which of the following best describes the scientific theory of evolution?

• A. It represents

  scientists' best guess of why animals look the way they do.

• B. It offers the strongest scientific explanation of how organisms have changed over very long periods of time

• C. It offers a very

  tentative and continually changing explanation about animal species.

• D. It provides an explanation, developed by one scientist, to explain why some animals look similar to each other.

Which species’ DNA is most similar to the DNA of the toothed whale? 

• Hippopotamus 
• Baleen Whale
• Grazing Mammals
• Camels

Tags

NGSS.MS-LS4-2

Two organisms that are closely related would have

• very similar DNA sequence
• exactly the same DNA sequences
• no proteins in common
• completely different DNA sequence

Tags

NGSS.MS-LS4-2

Which of the following is a term for a group of similar organisms that can reproduce fertile offspring?

• individual
• population
• species
• fossil

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

The ability of an organism to survive and reproduce in its specific environment 

• diversity.
• evolution
• adaptation
•  fitness

Tags

NGSS.MS-LS2-1

NGSS.MS-LS4-4

When organisms can no longer mate, especially due to geographic isolation mechanisms, the outcome might be

• Speciation - the two populations can no longer reproduce.

• bottle neck - a small population leaves to form a new population

• Genetic Drift - many organisms move into and out of the population

• Founder effect - a natural disaster reduces the size of the population

Which trait do the Chimp and pigeon share from their most recent common ancestor?

• jaw

• fur and mammary glands

• feathers

• claw and nails

Homologous structures indicate a common ancestor based on

• Same structure, but different function

• Same function, but different structure

• DNA testing and discovery of multiple mutations

• The structures are all found in the same fossil record layer

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired phenotype.

Tags

NGSS.MS-LS4-4

Two populations of the same species are separated by land barriers like rivers or mountains.

• geographical isolation

• temporal isolation

• adaptive ratiation

• behavioral isolaton

Tags

NGSS.HS-LS4-5