Identify the "selective pressure" or the "fitness" advantage. (e.g., "Birds eat the green beetles because they are easier to see, while the brown beetles hide better and survive.") 4. A – Adaptation
| Component | Guiding Question | Your Answer | Answer Key Check | | :--- | :--- | :--- | :--- | | | What differences exist among individuals? | ___________ | Must mention mutation or sex. | | I | Are these differences passed to offspring? | ___________ | Must mention genes/DNA/heritability. | | D | Why do some individuals out-reproduce others? | ___________ | Must mention environment/predation/food & reproduction rate. | | A | How does the population change over time? | ___________ | Must mention "allele frequency shift" or "generations." | Evolution By Natural Selection Vida Chart Answer Key
The acronym is a mnemonic device used to remember the key components required for natural selection to occur. It stands for: Identify the "selective pressure" or the "fitness" advantage
For evolution to happen, the traits in question must be heritable—passed down from parents to offspring via DNA. | ___________ | Must mention mutation or sex
When students are assigned a Vida Chart worksheet, they are typically presented with a branching diagram and a set of organisms (such as whales, hippos, wolves, and camels) or traits (such as amniotic eggs, hair, and vertebrae). The goal is to analyze the branching order to determine common ancestry, derived traits, and evolutionary divergence.
"The beetles wanted to become brown." (This implies intention, not random variation).