Life over time

Similarities in internal structures may indicate the organisms share

• Selections

• variations

• fossils

• Common ancestry

Tags

NGSS.MS-LS4-2

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

• Determine what bones an animal has in its forelimbs.

• Determine the evolutionary relationships among species.

• Decide which fossils are older than others are.

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

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

A cladogram/branching diagram is

• A diagram showing how scientists think different groups of organisms are related.

• A homologous structure that many plants have.

• A drawing that shows where different animals live in a tree

• A diagram used to identify unknown organisms.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Which of the following pairs of features have a similar structure but have a different function in each organism?

• dolphin fin and a shark fin

• human fingernails and monkey fingernails

• the front leg of a cat and the wing of a bat

• the wing of a bumblebee and the wing of a bird

Tags

NGSS.MS-LS4-2

What evidence suggests that the ancestors of whales once walked on land?

• Scientists have found fossils of whale-like creatures that had legs.

• Whales perform walking motions as they swim.

• Whales have similar DNA to elephants.

• Whales breathe through lungs.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which of these cases provides embryological evidence that two species share a common ancestor?

• Two species with different body structures.

• Two species with very similar DNA

• Two species with different structures that have similar functions.

• Two different species with similar patterns of early development.

Tags

NGSS.MS-LS4-3

How do most fossils form?

• An insect becomes trapped in amber.

• An entire organism becomes frozen in ice.

• A dead organism becomes buried in sediment.

• A dead organism becomes buried in tar.

Which of these is NOT used as evidence for evolution

• DNA Sequence

• stages of development

• body size

• body structure

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-2

NGSS.MS-LS4-3

NGSS.MS-LS4-4

What can you infer about cats, whales, and humans from these structures?

• only the cat and human share a common ancestor

• They all share a common ancestor

• They do not share common ancestor

• only the whale and cat share a common ancestor

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

The images shows four different embryos. Which of the following statements is supported by the similarities between these embryos?

• The fish is more advanced than the bird.

• The reptile has more offspring than the human.

• Only the human and reptile share a common ancestor

• They all share a common ancestor.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3