To decide if an animal is part of a group, look at the traits of the group.
Arachnids have the following traits:
They have eight legs.
They have an exoskeleton.
They have no antennae.
Compare each animal's traits to the group's traits. Select the animal with traits similar to the group's traits.
A leaf-curling spider has the following traits:
It has eight legs.
It has an exoskeleton.
It has no antennae.
A leaf-curling spider has the traits of an arachnid. A leaf-curling spider is an arachnid.
A white-spotted octopus has the following traits:
It has a soft body.
It has tentacles.
A white-spotted octopus does not have all of the traits of an arachnid. A white-spotted octopus is a mollusk.
Select the one animal that has all of the arachnid traits listed above.
A: White-spotted octopuses have tentacles, which are also called arms. White-spotted octopuses can use their tentacles to reach between corals and grab fish. These octopuses have a soft red body with white spots.
B: Leaf-curling spiders spin webs with a leaf at the center. These spiders have an exoskeleton and eight legs, but no antennae.