GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a plant that has recently died
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a group of organisms that can reproduce
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a structure or organ that no longer functions
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a trace of an organisms that existed in the past
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Detailed explanation-1: -Trace fossils are marks left by an animal or plant that has made an impression. These fossils include nests, burrows, footprints or any other markings of the animal’s time on the earth. The structure of the animal or plant remains as a mineral form.
Detailed explanation-2: -Fossils are the preserved remains, or traces of remains, of ancient organisms. Fossils are not the remains of the organism itself! They are rocks. A fossil can preserve an entire organism or just part of one. Bones, shells, feathers, and leaves can all become fossils.
Detailed explanation-3: -Examples of trace fossils are tracks and trails, borings, burrows, gastroliths and coprolites.
Detailed explanation-4: -The four types of trace fossils are tracks and trails (footprints), burrows and bores (worm holes), gastroliths (stomach stones), and coprolites (fossilized feces).
Detailed explanation-5: -A trace fossil is a result of animal activity. For example, a dinosaur footprint or an arthropod burrow would be an example of a trace fossil.