Natural selection is a gradual, nonrandom process by which biological traits become more or less frequent within a population. which of the following are necessary conditions for natural selection to occur within a population of staphylococcus aureus? traits that permit an individual to survive at least until reproduction will increase in frequency over time.
there is adaptation.
some individuals in the population reproduce more than others.
traits are hereditary.
some individuals within the population are optimally adapted for survival.
individuals in the population vary from one another.
deleterious (harmful) genes are removed from the population.
during embryogenisis the differentiation of the cells is important for the identification of the cell, tissue, organ and organism. after the fertilisation of egg with sperm a zygote is formed which divides into multiple cells by a process call cleavage and this leads to embryonic development. cell differentiation is probably the most important aspect of every human being. it is the ability of our body to make up different tissues which leads to the development of organs. cellular differentiation is necessary for the development of a fully formed human infants because cellular differentiation leads to the formation of different tissues and organs which are required for the development of human infant. without tissues and organs our body cannot function properly. during cellular differentiation the cells are differentiated to perform their functions and this leads to the proper functioning of our organs. hence, cellular differentiation is necessary for the development of organs and tissues and in proper functioning of our body.
tubes for transporting food-carrying tubes phloem water-carrying tubes xylem sugar is produced in the leaves. the food-carrying tubes transport this sugar from the leaves to the other parts of the plant. the root hairs found on the roots take in water and mineral salts from the soil.