Fossils

Which of the following is considered as the evolution of vertebrates?

• fish --> amphibians --> mammals -->

• ferns --> amphibians --> reptiles --> birds

• fish --> amphibians --> birds --> mammals

• fish --> amphibians --> reptiles --> mammals

........... fossils are the fossils of organisms that had lived for a short period of time in the past and had a wide geographical range, then became extinct.

• petrified

• index

• ferns

• coral

.......... is an example of microfossils.

• mammoth

• fern

• foraminifera

• archaeopteryx

Archaeopteryx represents a link between ...........

• vertebrates and invertebrates

• reptiles and birds

• fish and amphibians

• amphibians and reptiles

The mold is a copy of the outer shape of the shell.

• true

• false

When mud fills up the shell cavities and solidify, then shell decomposes ......... is produced.

• a solid mold

• a cast

• a petrified wood

• an amber fossil

Fossils are often found in .............rocks.

• metamorphic

• sedimentary

• igneous

• volcanic