EVIDENCE OF EVOLUTION Mumple Cholce Questiono 1. What is the primary focus of the theory of evolution? The origin of the Earth The change in populations of specles over time The bohavior of animals in tho wild d. The creation of now planets 2. What does the theory of evolution suggest about all living spocies? a. They aro unrelated b. They evolved Independently with no common origin c. They were created simultaneously d. They have descended from common ancestor 3. Which process is considered the primary mechanism of evolution? a. Artificial selection b. Genotic drift c. Natural selection d. Adaptive radiation 4. Why are transitional fossils important in the study of evolution? a. They are the oldest fossils ever found b. They show traits common to both ancestral and descendant groups c. They are found in all geographical regions d. They were created artificially by scientists 5. What is the significance of the Tiktaalik fossil? a. It shows characteristics of both fish and totrapod b. It is the first known fossil of a dinosaur c. It is the earliest form of life d. It was discoverod on a mountaintop 6. Which field of study examines the distribution of species across different geographical areas? a. Paleontology b.Geology c. Biogeography d.Ecology 7. How did the finches on the Galápagos Islands evolvo distinct beak shapes and sizos? a. Through random genetic mutations b. Due to human intervention c. By adapting to specific food sources on their respective islands d. By migrating to different continents 8. What do homologous structures in different species suggest? a. Common ancestry b. Independent evolution c. No evolutionary relationship d. Immediate creation by an external force 12. 13. 14.n

## Step 1<br />The theory of evolution primarily focuses on the change in populations of species over time. This is because it explains how species have evolved and adapted over time to survive in their environment.<br /><br />## Step 2<br />The theory of evolution suggests that all living species have descended from common ancestors. This is because all living organisms share some common characteristics, which suggests a common ancestry.<br /><br />## Step 3<br />Natural selection is considered the primary mechanism of evolution. This is because it explains how species adapt to their environment and how beneficial traits are passed on to future generations.<br /><br />## Step 4<br />Transitional fossils are important in the study of evolution because they show traits common to both ancestral and descendant groups. This helps to trace the evolutionary history of a species.<br /><br />## Step 5<br />The Tiktaalik fossil is significant because it shows characteristics of both fish and tetrapods. This fossil provides evidence of the evolutionary transition from water to land.<br /><br />## Step 6<br />Biogeography is the field of study that examines the distribution of species across different geographical areas. This helps to understand how species have evolved and adapted to different environments.<br /><br />## Step 7<br />The finches on the Galápagos Islands evolved distinct beak shapes and sizes by adapting to specific food sources on their respective islands. This is an example of natural selection in action.<br /><br />## Step 8<br />Homologous structures in different species suggest common ancestry. This is because these structures have similar structures but different functions, indicating that they evolved from a common ancestor.