Zoology 1st Semester Final

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What is an arachnid?

Back

Arachnids are a class of joint-legged invertebrates that include spiders, scorpions, ticks, and mites. They typically have eight legs and a body divided into two segments: the cephalothorax and the abdomen.

Front

What is a dichotomous key?

Back

A dichotomous key is a tool that allows the identification of organisms through a series of choices that lead the user to the correct name of a given item.

Front

What are the main goals of a systematic zoologist?

Back

The main goals of a systematic zoologist include discovering and describing all species of animals, understanding their relationships, and constructing an informative taxonomic system.

Front

What is the lateral line system in fish?

Back

The lateral line system is a sensory organ in fish that detects vibrations and movement in the water, helping them navigate and locate prey.

Front

What time period is known as the 'Age of Amphibians'?

Back

The Permian period is known as the 'Age of Amphibians' due to the dominance of amphibians during this time.

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What does it mean for a fish to be streamlined?

Back

Streamlined refers to a body shape that reduces resistance to movement through water, allowing fish to swim efficiently and rapidly.

Front

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

Back

Whip scorpions have a segmented abdomen and long legs, while true scorpions have a more robust body and a stinger on their tail.

Front

What is countershading in fish?

Back

Countershading is a form of camouflage where an animal is darker on the upper side and lighter on the underside, helping it blend into its environment.

Front

What are the characteristics of the class Chondrichthyes?

Back

Chondrichthyes are cartilaginous fish, such as sharks and rays, characterized by a skeleton made of cartilage instead of bone.

Front

What is the significance of taxonomy in zoology?

Back

Taxonomy is the science of classification of organisms, which helps in organizing biological diversity and understanding evolutionary relationships.