ANATOMY

Detailed explanation-1: -The preserved traces of living organisms like plants, animals, insects from remote past are known as fossils. Study of fossils is known as paleontology. Fossils are studied to understand the process of evolution and to establish evolutionary relationships.

Detailed explanation-2: -Fossils (from Latin fossus, literally “having been dug up") are the preserved remains or traces of animals, plants, and other organisms from the remote past.

Detailed explanation-3: -Fossils are the preserved remains of plants and animals whose bodies were buried in sediments, such as sand and mud, under ancient seas, lakes and rivers. Fossils also include any preserved trace of life that is typically more than 10 000 years old.

Detailed explanation-4: -So, the correct answer is ‘Fossils’.

Detailed explanation-5: -Microfossils are the remains of tiny animals and plants found in rocks and sediment. They are very small and can be measured in millimetres (most are smaller than a pinhead). Scientists use microscopes to study them.