The correct answer is “ Common Ancestry .” Scientists notice structural similarities between fossils of a land animal and an aquatic organism. They know the similarities are not a result of the two organisms having to adapt to similar environments.
Which best describes the fossil record?
The definition of a fossil record is “ the record of the occurrence and evolution of living organisms through geological time as inferred from fossils .” By studying fossils, scientists learn how different organisms changed over time, which serves as the best evidence of evolution.
What are saber teeth for these organisms?
Thylacosmilus and Smilodon both have saber teeth, but they do not share an ancestor that had saber teeth. What are saber teeth for these organisms? analogous structures . Isotopes of the same element will have a different number of neutrons, but the same number of protons .
How are fossils evidence of evolution?
Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today. ... Paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary relationships between organisms.
How does the fossil record provide evidence for evolution quizlet?
The fossil record is a sequence of once-living organisms found as fossils in different layers of Earth's crust. The fossil record is made up of all of the fossils ever found. The fossil record supports evolution by showing the changes in different species over time .
Did saber tooth tigers eat humans?
Fossils found inSchöningen, Germany, suggests that around 300,000 years ago Humans and Saber Tooth Tigers confronted each other. However, there no such evidence that suggests that saber tooth tiger ate humans .
Is saber tooth a lion?
Named for the pair of elongated bladelike canine teeth in their upper jaw, they are often called sabre-toothed tigers or sabre-toothed lions, although the modern lion and tiger are true cats of the subfamily Felinae. ...
Which best describes the fossil record the fossil record Cannot?
the fossil record provides evidence of a common ancestor to many species. the fossil record is inaccurate because scientists are not able to date fossils. ...
Which of these answers best describes a fossil group of answer choices?
Which of these answer BEST describes a fossil? fossils are remains or traces of once-living organisms found in layers of rock or ice, or in amber . organism from which other organisms are descended. ... Minerals seep into the organism's body and replace it with stone.
What is a good example of Intrasexual selection?
Intrasexual selection, on the other hand, occurs between members of the same sex. For example, male sea lions compete for dominance over rookeries of females . Here, intrasexual selection acts on the physiology of the sea lion, to make it large enough to compete with other males for a group of females.
What are the 5 types of evidence of evolution?
Five types of evidence for evolution are discussed in this section: ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos .
What are the 7 evidences of evolution?
Evidence for evolution: anatomy, molecular biology, biogeography, fossils, & direct observation .
Which is true concerning how fossils are used as evidence?
Q. Which is true concerning how fossils are used as evidence? Fossils cannot be compared to one another but can be compared to living organisms. Fossils can be compared to one another but not to living organisms .
Why is fossil record evidence for evolution?
Evidence for early forms of life comes from fossils. By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth . ... Fossils provide a snap shot of the past and allow us to study how much or how little organisms have changed as life developed on Earth.
Which of the following best describes how an observation of the fossil record supports the theory of evolution?
Which best describes how the fossil record supports the theory of evolution? The fossil record reveals intermediates that link different species . ... The theory of evolution states that all life is related and that organisms have become more complex over time.
What does the theory of evolution say?
In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species ? are related and gradually change over time.
