Natural Selection Critical Thinking Self-Assessment

An image of my group performing feeding frenzy (natural selection) lab

I demonstrated that I can collect and analyze evidence when I observed and collected data, then analyzed this data to identify patterns and understand importance of having variations in the environment. My collected data led me to conclude that certain organisms had a higher chance of obtaining a full stomach than others. Accordingly, I analyzed which feeding adaptions are best suited for each of the four environments and why each feeding adaption is best suited for that particular environment. For instance, I found that in the rice environment, the spoon was the most suitable tool as it had a shallow and wide bowl which allowed it to scoop up more rice at once compared to other utensils like the fork. When I analyzed data I collected, I considered different characteristics of utensils to determine which organism is best suited for that particular environment.

I demonstrated that I can connect evidence I collected to big ideas when I connected data to the concept of natural selection and understood the importance of having variations in environment. By maintaining a diverse range of feeding tools, populations can adapt to changing environmental conditions. Some individuals are more likely to have feeding tools that are advantageous for survival in new or changing environments, continuing to play their roles in the ecosystem. Feeding tools that are less favourable in one environment may be advantageous in another. For example, a broken fork is not best suited for the rice environment, but it may more advantageous in the environment where food can be only found in a small hole because it can be easier to get food out of a small hole. Therefore, having a variety of organisms in the environment is crucial for natural selection to occur. The interactions between different species in an ecosystem create selective pressures that shape the evolution of different traits, leading to greater adaption and survival in changing environments.

I demonstrated that I can make prediction based on evidence when I observed the outcome at one station and use that information to predict the result at the next stations. The first station was the spaghetti environment, and I could only have seven strands in my stomach. Some had barely a quarter of the capacity just like what I had, but some had full stomach because certain organisms had a higher chance of obtaining a full stomach than others. With this evidence, I was able to predict the likely outcomes at the next stations.