There are three conditions need for natural selection to occur. The three conditions are variation,fitness, and inheritability. Differences must be present, those differences must help the species survive, and the differences can be passed onto offspring. Look at the picture below what is the evidence for natural selection?
One of the three conditions that must be met for natural selection is a difference in fitness. The different traits must help the individual organism survive and reproduce. How did a different trait help the cactus survive and reproduce? What evidence is in the picture to show the cactus is reproducing?
There are three conditions that must be met for natural selection to occur. The first is there must be variation in characteristics. Different individual in a population must have different traits. What was the different trait that the surviving cactus had?
What do you think is happening in the image below?
Evolution shows the change in traits that are passed down from one generation of an organism to the next. Watch this video by Bill Nye that explains evolution through emojis.
Question: What is the key according to the video that makes evolution possible
Evolution is the change in inherited characteristics over time. Today think about technology that has changed over time. Give an example of something that humans use that has changed over time.
