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antoine drew a diagram to compare two kinds of evidence that support the theory of evolution. which label belongs in the area marked x? no longer used by species links different species to a common ancestor evidence of adaptations to similar environments part of comparative anatomy studies

The word X represents the organs which is  no longer used by the species.

Explanation:

The word vestigial shows the characters that is not used by the species anymore. Example is appendix which is considered as a vestigial organ in human beings as it is no longer useful for the human body.

This organ was used when there was only vegetarian food available for the human beings to eat.

But now that animals and vegetable both are available there is no need for the enzyme required the digestion of cellulose.

So, this organ is vestigial for the human body.

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.