LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How do fossils provide evidence that evolution has happened on Earth?
A
Fossils show how the sizes of certain animals has changed drastically over millions of years
B
Fossils show that some species have gone extinct
C
Fossils show how life forms present today are different than those from the past
D
Different sedimentary rock layers provide evidence for how the environment has changed over time
Explanation: 

Detailed explanation-1: -Fossils provide solid evidence that organisms from the past are not the same as those found today; fossils show a progression of evolution. Fossils, along with the comparative anatomy of present-day organisms, constitute the morphological, or anatomical, record.

Detailed explanation-2: -Fossils provide important evidence for evolution and the adaptation of plants and animals to their environments. Fossil evidence provides a record of how creatures evolved and how this process can be represented by a ‘tree of life’, showing that all species are related to each other.

Detailed explanation-3: -Fossils provide proof of life’s earliest stages. Paleontologists have used fossils to study the changes that have occurred in creatures as life has evolved on Earth. Fossils are essential evidence for evolution because they show that life on Earth was different in the past than it is now.

Detailed explanation-4: -As pieces of once living things, body fossils are evidence of what was living where and when. Trace fossils are valuable because they “animate” the ancient animals or plants by recording a moment of an organism’s life when it was still alive.

Detailed explanation-5: -Fossils tell about the ancient organisms’ life and their evolution on earth millions of years ago. Fossils are direct evidence of evolution. It tells about the life found on ancient earth. By studying fossil records palaeontologists reveal the connecting link between different organisms of the past and present.

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