In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank. Palaeontologists are like detectives who (1) ________ the evidence that (2) ______ animals left behind. Those clues to what dinosaurs were like are found in fossils - the ancient (3) _______ of an organism, such as teeth, bone or shell - or (4) _______ of animal activity, such as (5) ________ and trackways.
Select the most appropriate option to fill in blank number 2.
extinct
The correct answer is extinct.
Trace fossils: These are signs of animal activity, not the body itself. Examples include footprints (trackways), burrows, fossilized dung (coprolites), and bite marks. The process of becoming extinct is a natural part of evolution, but human activity is causing a rapid increase in extinction rates today. Studying past extinctions through fossils helps scientists understand biodiversity and the impact of environmental changes.
Select the most appropriate option to fill in blank no. 2.
Select the most appropriate option to fill in blank no. 4.
Select the most appropriate option to fill in blank no. 5.
Select the most appropriate option to fill in blank No.1
Select the most appropriate option to fill in blank No. 4
Select the most appropriate option to fill in blank No. 2
Select the most appropriate option to fill in blank No. 5
Select the most appropriate option to fill in blank No. 3
Select the most appropriate option to fill in blank no.1.
Select the most appropriate option to fill in blank no. 5