At school we are taught that there is a dominant gene for brown eyes and a recessive one for blue. In this sentence, dominant means:

A. having undergone mutation

B. of or relating to single-cell organisms

C. having reached full development, growth, or
maturity

D. producing a trait even when inherited from only
one parent

D. Producing a trait even when inherited from only one parent

Explanation:

A dominant gene, or a dominant version of a gene, is a particular variant of a gene, which for a variety of reasons, expresses itself more strongly all by itself than any other version of the gene which the person is carrying, and, in this case, the recessive.

it cools slower in the earth meaning the crystals have more time to form than lava on the surface

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.