A = enzyme
B = active site
C = product
D = substrate
A
Water in the soil is held tightly by adhesive forces between the water molecules and the mineral content in soil particles - in the microspores.
Explanation:
While water passes through the macrospores of soil by gravity, water passes through the microspores mainly by cohesion between the water molecules and adhesion between the water molecules and soil minerals. The more surface area for the minerals in the soil (due to finer particle sizes) the higher the water retention rate of the soil. This is why soil with more humus (like silt and clay) retains water more than soils like sand.
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Answer:
Genetic alteration probably refers to altering the DNA sequence present in the genes of chromosomes.
Explanation:
Genetic alternation occurs when the DNA of an organism gets altered due to any circumstance. Even a change in a single nucleotide can have devastating effects on the organism. It can occur due to mutations or physical factors like radiation, UV etc. Genetic alternations can be useful as well as harmful. Genetic alternation is also a source due to which variations might arise in a population and hence, it leads to biodiversity.
Answer:
The phenotype may change constantly throughout the life of an individual because of environmental changes and the physiological and morphological changes associated with aging. Three types of natural selection, showing the effects of each on the distribution of phenotypes within a population.