In a biology class, William and Lily were discussing about different structures in organisms. William suggested that structures with the same parts but different functions, like the wings of bats and the arms of humans, suggest that organisms share a common ancestry. Lily agreed and said this concept is known as what?

• vestigial structures

• homologous structures

• adaptive radiation

• fossil

Tags

NGSS.MS-LS4-2

Michael found a structure in an organism that seems to serve no purpose now. Elijah suggests that this vestigial structure likely once had a function in a(n)

• close relative of the organism

• early ancestor of the organism

• unrelated organism

• embryological stage of the organism

Tags

NGSS.MS-LS4-2

Evelyn, Anika, and Avery were studying for their biology exam. They came across a concept that some organisms that share a common ancestor have features that have different functions, but similar structures. They were trying to remember the term for this concept. Can you help them?

• vestigial structures

• analogous structures

• homologous structures

• fossil structures

Tags

NGSS.MS-LS4-2

In a biology class, Charlotte, Zoe, and Aria are studying the embryos of various organisms like chickens, frogs, and humans. They notice similarities in the development of these embryos which could indicate a common ancestor. What is this field of study called?

• natural selection

• embryology

• speciation

• evolution

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

During a biology class, Lily, Mia, and Nora were discussing about vestigial structures. They listed down some examples. Which of the following examples they discussed is a vestigial structure?

• the wings of a red-tailed hawk

• the hind limbs of a house cat

• the fins of sharks

• the tailbone of a human

Tags

NGSS.MS-LS4-2

Jackson and Avery are studying genetics. They come across a statement that 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.HS-LS3-1

Mia, Liam, and Luna went on a field trip to a geological site. They found several layers of fossils. Which statement best describes the fossils they found?

• The oldest fossils Mia, Liam, and Luna found can be found on the lower layers

• The oldest fossils Mia, Liam, and Luna found can be found at the top layers

• The youngest fossils Mia, Liam, and Luna found are always on the bottom layers

• Mia, Liam, and Luna cannot tell the age of any of these fossils

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Benjamin, Daniel, and Hannah were studying about whales in their biology class. They learned that whales are aquatic mammals that contain a pelvis bone. Even though it does not aid in their movement, they understood that the function must have been used by a common ancestor of the whale. Thus, they referred to the pelvis as a(n)

• vestigial structure

• analogous structure

• homologous structure

Tags

NGSS.MS-LS4-2

James and Aria were studying about evolution in their biology class. They came across a concept and James asked Aria, 'How would you describe this evolution?'

• Homologous structure

• Analogous structure

• Structural adaption

• Functional adaption

Tags

NGSS.MS-LS4-2

Grace, Lily, and Mason are studying for their biology exam. They come across a question about animals living in different continents. They notice that Anteater/Armadillos of the Americas and the Pangolin of Africa, despite being geographically distant, have similar characteristics and are not close relatives. They live in similar environmental conditions. What can they deduce from this observation?

• Living things can adapt similarly to similar environments over time.

• Living things do not change over time

• They must all have the same recent common ancestor

• I don’t know

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4