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Questions and Answers
What is the defining feature of arachnids?
What is the defining feature of arachnids?
- Six legs
- Antennae
- Wings for flight
- Two body segments and eight legs (correct)
What are the main animal groups in the animal kingdom?
What are the main animal groups in the animal kingdom?
- Herbivores, carnivores, omnivores, and scavengers
- Insects, arachnids, crustaceans, and mollusks
- Vertebrates and invertebrates (correct)
- Mammals, birds, reptiles, amphibians, and fish
Which of the following is a characteristic of mammals?
Which of the following is a characteristic of mammals?
- Have hair or fur (correct)
- Breathe through gills
- Cold-blooded
- Lay eggs
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Study Notes
Arachnids
- The defining feature of arachnids is the presence of eight legs and a body that is divided into two main parts: the cephalothorax and the abdomen.
Animal Kingdom
- The main animal groups in the animal kingdom are:
- Invertebrates (animals without a backbone)
- Vertebrates (animals with a backbone)
Mammals
- A characteristic of mammals is the production of milk for their young, a trait that distinguishes them from other animals.
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