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biology 0610printed 11 · PDF 11
328 pagesrevision 46933
printed 11 · PDF 11
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Lay eggs with soft shells
on land
Amphibians
Smooth, moist skin with
no scales
Lay eggs without shells in
water
Larvae live in water and
have gills
Adults usually live on land
and have lungs
Frogs, salamanders,
toads
Invertebrates don’t possess a backbone. All invertebrates with jointed legs are termed
as arthropods. Arthropods also possess exoskeletons. Arthropods are grouped into
more groups:
Arthropod Group
Characteristic Features
Examples
Myriapods
Body has many segments
Centipede