Page 20 - SAAT BIOLOGY PART 1

SAAT BIOLOGY MR.MOHAMED ELGAYAR MRPROF.NET

• Most aquatic arthropods use gills to obtain oxygen

Arthropods living in many environments have

antennae.

• Terrestrial arachnids have chelicerae and pedipalps.

Arthropods that undergo incomplete metamorphosis

hatch from eggs as nymphs-an immature form of the

arthropod that look like small adults.

• Most insects develop through the four stages of

complete metamorphosis-egg, larva, pupa, and adult.

• Ants communicate with each other by pheromones,

which they can sense with their antennae.

• Ants do Not use touch to sense food, do not

communicate with each other through sound, and Ants

do not use their antennae to sense vibrations

• Insects are the only modern arthropod with wings. No

arachnids have wings. No crustacean has wings.

• Arthropods

MRPROF.NET MR.MOHAMED ELGAYAR MRPROF.NET@GMAIL.COM 19