Artificial Selection Gizmo? CLAIM-EVIDENCE > REASONING GRAPHIC ORGANIZER Question: Identify and explain 3 driving forces that cause evolution of organisms. Data (Observations qualitative and/or quantitative): What did you observe when the Gizmo was running? Claim: What is the Gizmo attempting to show or explain? Evidence (from your data) Evidence (from your data) Evidence (from your data) Reasoning (connect evidence to claim) Reasoning (connect evidence to claim) Reasoning (connect evidence to claim)
How can I fill this in using the data from Evolution: Natural and Artificial Selection Gizmo? CLAIM-EVIDENCE > REASONING GRAPHIC ORGANIZER Question: Identify and explain 3 driving forces that cause evolution of organisms. Data (Observations qualitative and/or quantitative): What did you observe when the Gizmo was running? Claim: What is the Gizmo attempting to show or explain? Evidence (from your data) Evidence (from your data) Evidence (from your data) Reasoning (connect evidence to claim) Reasoning (connect evidence to claim) Reasoning (connect evidence to claim)
The Correct Answer and Explanation is:
Here is a full sample Claim-Evidence-Reasoning (CER) Graphic Organizer using the Evolution: Natural and Artificial Selection Gizmo. This will guide you in understanding the driving forces of evolution as shown in the simulation. You can adjust your own data if your results were different, but this format matches what is typically observed when using the Gizmo.
Question: Identify and explain 3 driving forces that cause evolution of organisms.
Data (Observations qualitative and/or quantitative):
When the Gizmo was running, I observed that insect populations changed over time depending on which traits were selected. Under artificial selection, traits like color could be controlled by choosing which insects reproduced. Under natural selection, traits that helped insects blend into the environment increased in the population. Predators removed insects that were easier to see. Over generations, there were noticeable shifts in the population’s characteristics.
Claim:
The Gizmo is attempting to show that evolution occurs due to selective pressures acting on inherited traits, and these pressures can be caused by artificial selection, natural selection, and environmental changes.
Evidence 1:
When I selected only green insects to breed, the population turned mostly green in later generations.
Reasoning 1:
This shows artificial selection, where humans choose specific traits to be passed down. Over time, this causes the population to evolve to match the desired traits.
Evidence 2:
In natural selection mode, insects that matched the background were less likely to be eaten and became more common.
Reasoning 2:
This demonstrates survival of the fittest. Traits that improve survival are passed on, leading to gradual changes in the population’s characteristics.
Evidence 3:
When the environment changed color, the insects that were once camouflaged became more visible and were eaten more often.
Reasoning 3:
This shows how environmental changes can shift which traits are beneficial. The population evolves in response to the new environment, favoring different traits than before.
Conclusion (optional):
By simulating different types of selection, the Gizmo helps us understand that evolution is driven by pressures such as human influence, predator-prey interactions, and environmental change. These forces determine which traits are advantageous and therefore passed on to future generations.
