Reteach Retest Unit 2

Pavlov experimented with dogs saliva.  He used two stimuli at the same time, ringing a bell and bringing food.  He discovered that afterwards, just ringing the bell would cause the dogs to salivate. Which best describes this occurrence? 

• Classical Conditioning

• Habituation

• imprinting

• social behavior

Which most likely uses fossil evidence?

• Similarities in DNA

• Similarities in proteins

• Similar species located in different places on Earth.

• identifying Archaeoptryx as an organism that lived in the time between dinosaurs & birds

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What is the best way to determine the evolutionary relationships between species?

• By comparing bone structures

• By comparing physical appearance

• By comparing amino acid sequences of their proteins which contain DNA

• By comparing fossils that resemble the organisms to identify Common Ancestors

Tags

NGSS.MS-LS4-2

Drought affects a population of plants. One specific plant has a trait that helps them survive the drought. How could the drought-resistant trait become more common in the population of plants?

• Other plants will begin to produce drought resistant seeds.

• The drought resistant plant will send its traits to nearby plants

• Other species will cross pollinate with the drought resistant plant

• The drought resistant plant will produce more seeds and reproduce better than the other plants

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

A large population of cockroaches was sprayed with an insecticide. A few of the cockroaches survived and produced a population of cockroaches that was resistant to this spray. What can best be inferred from this example?

• A species will adapt no matter what the environment.

• The environment has no effect on the survival of an organism.

• Insecticides cause mutations that are passed on to the next generation.

• Individuals with favorable variations survive and reproduce.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

Panthera leo, the scientific name for a lion, is a member of which Genus?

• leo

• Animalia

• Panthera

• Mammalia

An organism that is both autotrophic (photosynthetic) and eukaryotic (multi-cellular) would belong to which kingdom?

• plantae

• fungi

• animalia

• eubacteria

Tags

NGSS.MS-LS1-6

Which statement best explains the purpose of phylogenetic trees in taxonomic groups?

• to show environmental adaptations among species

• to show how closely organisms are related geographically

• to show the evolutionary relationships and common ancestors of organisms

• to show how organisms have similarities and differences based on genetic characteristics only

Tags

NGSS.MS-LS4-2

The diagram below shows salamanders and a dichotomous key.  What type of salamander is number 7?

• Mud Puppy

• Tiger Salamander

• Spotted Salamander

• Siren

Tags

NGSS.MS-LS4-2

The table shows some characteristics of four kingdoms.  Which characteristic would a taxonomist use to classify organisms as Archaebacteria or as Eubacteria?

• The internal organization of the cell

• The number of cells in an individual

• The composition of the cell wall

• The nutritional requirements of the organisms

Tags

NGSS.MS-LS4-2