Evolution Google Form Review

Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this?

• The function of these bones is the same in all animals
• They live in similar environments
• They have a common ancestor
• All organisms resemble humans

The structures shown are_________

• homologous
• heterologous
• neither

An example of a homologous structure 

• human arm and bird wing
• rat and human

• wing of butterfly and bird wing

2. A species is.....

• A type of DNA.
• A group of different colored frogs
• A group of organisms that can mate with each other.

Structures with the same parts have different functions; suggests that organisms share a common ancestry

• vestigial structures
• homologous structures
• adaptive radiation
• fossil

The diagram is an example of which evolution evidence?

• comparing fossils

• comparing embryos

• homologous structures

• comparing DNA

What does Darwin's theory of evolution suggest?

• species change over time
• extinct species are not related to living species
• different species can interbreed
• animals that look alike are most closely related

If modern organisms have a lot of homologous structures, what inference might paleontologists make about those organisms?

• They are reptiles
• One organism evolved from the other.
• The organisms have a common ancestor

Select the statement that is most accurate.

• many animals have homologous structures due to common ancestry
• similarities in DNA is evidence of evolution

• We can observe changes in life forms by observing the fossil record
• All of these are evidence for evolution

What is a structure that is similar across species?

• natural selection

• homologous
• adaptaion
• variation