EVERYDAY SCIENCE

Detailed explanation-1: -Answer: Hind wings have tail extensions.

Detailed explanation-2: -Dichotomous keys typically stress identifying species by their scientific name, as each individual species has a unique scientific name. By contrast, common names for organisms – such as “white oak, ” “chipmunk, ” or “penguin” – often refer to many different species that look similar to each other.

Detailed explanation-3: -Discerning between common characteristics is one advantage of a dichotomous key. Color, shape, size, and organization are all characteristics that help to identify organisms through a plant key. A dichotomous key may be used to classify butterflies.

Detailed explanation-4: -A dichotomous key breaks down identification into two mutually exclusive options at each step. To use the key, the scientist starts at the top, or beginning, and sees which of the two options apply to their organism. Based on their answer, the key directs them to a new question.

Detailed explanation-5: -When creating a dichotomous key, both qualitative (i.e. physical attributes such as how the organism looks, what color it is, etc.) and quantitative (i.e. the number of legs, weight, height, etc.) factors are considered.