8.LS4.2 Common Ancestry

What has the study of fossils allowed scientists to do?

• study present ocean temperatures at different depths

• describe past environments and the history of life

• predict which organisms will become extinct in the future

Tags

NGSS.MS-LS4-1

Use this diagram to identify which bird can fly but does not perch on trees or roost.

• Emu

• Crane

• Finch

• Vulture

Darwin concluded that extant species on the Galápagos Islands...?

• had adapted their behavior to a cold arctic environment.

• had remained the same with no variations in phenotypes.

• had changed their anatomical structure over time.

Tags

NGSS.MS-LS4-2

What did Darwin observe about finches in the Galápagos Islands?

• They had identical genotypes in all locations.

• Their beaks were adaptations related to the foods the finches ate.

• They had identical phenotypes in all locations.

Tags

NGSS.MS-LS4-2

Scientists combine evidence from fossils, body structures, early development, DNA, and protein structures to...?

• determine whether an organism will have gills during its early development.

• determine the evolutionary relationships among extant and extinct species.

• decide which fossils are older than others.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-3

What did Darwin infer from his observations of extant organisms in South America and the Galápagos Islands?

• The organisms on the Galápagos Islands were virtually identical to mainland organisms.

• A small number of different plant and animal species had come to the Galápagos Islands from the mainland.

• The organisms on the Galápagos Islands were completely unrelated to mainland organisms.

Tags

NGSS.MS-LS4-2

Which mammal shown gives birth to live young, but does not have retractable claws?

• Platypus

• Brown Bear

• Lion

• House Cat

Tags

NGSS.MS-LS4-2

Use the diagram above to answer these questions.

Do both lemurs and humans have the characteristic displayed at point D?

• It can not be determined from this diagram if humans and lemurs share this characteristic.

• They do not share the ability to speak a language, nor do they both walk upright on two legs.

• Lemurs and humans do share the ability to speak a language and to walk upright on two legs.

Tags

NGSS.MS-LS4-2

Which plant is most similar to the hibiscus and which plant is least similar to the hibiscus?

• Most similar: Pine tree

  Least Similar: Moss

• Most similar: Flowers

  Least Similar: Ferns

• Most similar: Moss

  Least Similar: Fern

Tags

NGSS.MS-LS4-2

In addition to anatomical evidence, how does genetic evidence support the claim that all life on Earth came from a common ancestor?

• Similar bone structure in mammals provides evidence of common ancestry.

• DNA reveals how species are related and shows their shared genetic code.

• Similar embryonic development in fish, pigs, and turtles reveals common ancestry.

Tags

NGSS.MS-LS3-1