Arthropods and Their Characteristics

Safari guide Frank introduces the world of arthropods, which make up 80% of Earth's creatures. The video explores four groups: arachnids, insects, crustaceans, and myriapods, detailing their characteristics, habitats, and roles in the ecosystem. Arachnids like spiders and scorpions are hunters, some venomous. Insects, including butterflies and dragonflies, have distinct life cycles. Crustaceans like crabs clean water bodies, while myriapods like millipedes and centipedes have unique defense strategies.

What percentage of all living creatures on Earth are arthropods?

• 80%

• 50%

• 70%

• 60%

Which of the following is NOT a characteristic of arachnids?

• No antennae

• Wings

• Eight legs

• Two body segments

What is the primary role of butterflies in the environment?

• Decomposing waste

• Producing honey

• Pollinating flowers

• Predating on insects

Which life cycle stage is NOT part of a dragonfly's development?

• Egg

• Larva

• Nymph

• Adult

Where are freshwater crabs commonly found?

• Mountains

• Deserts

• Forests

• Freshwater streams

What is the primary habitat of crustaceans?

• Water

• Deserts

• Forests

• Mountains

What is a unique defense mechanism of millipedes?

• Releasing a foul-smelling liquid

• Fast running

• Camouflage

• Venomous bite

What is the main diet of millipedes?

• Fruits

• Dead leaves

• Insects

• Small mammals

How do centipedes defend themselves from predators?

• By running away and wriggling

• By hiding underground

• By releasing a foul smell

• By rolling into a ball

Which of the following is NOT a characteristic of myriapods?

• Many pairs of legs

• Two body sections

• Simple eyes

• Wings