Year 7 Science - Dichotomous Keys

Front

What is a dichotomous key?

Back

A tool used to identify organisms by answering a series of questions that lead to the correct name of the organism.

Front

What do we look at when using a dichotomous key to identify organisms?

Back

Physical features.

Front

What is the order of insects with two pairs of scaly wings?

Back

Lepidoptera.

Front

What is the classification for an organism in the Order Araneae?

Back

It is classified as a spider.

Front

What features are used to identify arachnids?

Back

Physical characteristics such as body segments, number of legs, and presence of stingers.

Front

What is the difference between a scorpion and a whip scorpion?

Back

Scorpions have a stinger, while whip scorpions do not.

Front

What is the scientific classification hierarchy?

Back

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.

Front

What is the purpose of a dichotomous key?

Back

To help users identify unknown organisms based on observable traits.

Front

What are the main characteristics of insects?

Back

Insects have three body segments, six legs, and usually one or two pairs of wings.

Front

What is the significance of physical features in classification?

Back

Physical features help distinguish between different species and groups of organisms.