Which statement is true?(1 point)

Question

Responses

Fossils cannot provide information about relatedness of life forms.
Fossils cannot provide information about relatedness of life forms.

Fossils cannot provide information about life cycles and behaviors.
Fossils cannot provide information about life cycles and behaviors.

Fossils can provide information about the entire evolutionary process of life forms.
Fossils can provide information about the entire evolutionary process of life forms.

Fossils can provide information about when life forms existed.

Answer 1

The true statement is:

Fossils can provide information about when life forms existed.

Fossils are valuable for understanding the timing of different species and their existence throughout Earth's history. They can also provide some insights into relatedness and aspects of life cycles and behaviors, but the most straightforward and widely accepted piece of information they provide is about the existence and temporal distribution of life forms.

Answer 2

For decades, scientists relied on the fossil record and comparative anatomy to assemble evolutionary lineages.

Which statement describes a limitation of these methods?

(1 point)
Responses

They can show false relationships between organisms that are not reflected in the DNA.
They can show false relationships between organisms that are not reflected in the DNA.

They are not reliable evidence of how the body structures of organisms evolved.
They are not reliable evidence of how the body structures of organisms evolved.

They are no longer relevant because the fossil record is complete.
They are no longer relevant because the fossil record is complete.

They cannot be used to determine when species evolved.

Answer 3

The statement that describes a limitation of these methods is:

They can show false relationships between organisms that are not reflected in the DNA.

Fossil records and comparative anatomy may suggest relationships based on physical characteristics but can sometimes misrepresent evolutionary relationships when molecular data (like DNA sequences) reveal a different lineage or evolutionary path.

Answer 4

Which statement about evolution is accurate?(1 point)
Responses

Living things have adapted and changed over time for specific, discoverable reasons.
Living things have adapted and changed over time for specific, discoverable reasons.

Scientists no longer study evolution because it has been proven.
Scientists no longer study evolution because it has been proven.

DNA is the only extant evidence supporting the theory of evolution.
DNA is the only extant evidence supporting the theory of evolution.

Animals, plants, and microbes have their own separate, unrelated ancestries.

Answer 5

The accurate statement about evolution is:

Living things have adapted and changed over time for specific, discoverable reasons.

This statement reflects the understanding that evolution occurs through mechanisms such as natural selection, genetic drift, and mutation, which can lead to observable adaptations over time based on environmental pressures and other factors.

Answer 6

Chimpanzees, chickens, cows, and human beings all share a gene for an insulin hormone. What does this suggest?(1 point)
Responses

This suggests that all of these species share a common ancestor.
This suggests that all of these species share a common ancestor.

This suggests that two of these species share a common ancestor.
This suggests that two of these species share a common ancestor.

This suggests that three of these species share a common ancestor.
This suggests that three of these species share a common ancestor.

This suggests that none of these species share a common ancestor.

Answer 7

The correct response is:

This suggests that all of these species share a common ancestor.

The presence of a shared gene, such as one for insulin, indicates that these species likely descended from a common ancestor that possessed that gene. This is a key concept in evolutionary biology, supporting the idea of common descent among different species.