GENERAL HISTOLOGY

INTRODUCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Rocks are not living because
A
they never move
B
they aren’t needed for humans
C
they are not made of cells
D
they don’t break down
Explanation: 

Detailed explanation-1: -Instead of cells, a non-living thing is made up of elements or compounds that form from chemical reactions. Examples of non-living things are rocks, water, and air.

Detailed explanation-2: -Only living beings are composed of one or more cells. Rocks are composed of mineral grains such as quartz and feldspar, which are far less complex than cells.

Detailed explanation-3: -Non-living things are inanimate objects or forces with the ability to influence, shape, alter a habitat, and impact its life. Some examples of non-living things include rocks, water, weather, climate, and natural events such as rockfalls or earthquakes.

Detailed explanation-4: -Viruses, virions, and viroids are all examples of non-cellular life. Viruses are parasites that infect plants, animals, fungi, and bacteria. They consist of genetic material and a protective protein coat.

Detailed explanation-5: -Endoliths are organisms, including archaea, bacteria, fungi, lichens, algae and amoebas, that live inside rock, coral or animal shells. Many endoliths are extremophiles, capable of surviving in hot and cold drylands, where rocks provide thermal buffering, physical stability and UV protection for local inhabitants.

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