Charles darwin was credited for writing the biological theory of the organisms that were used for the basis of his studies were

Charles Darwin was credited for writing the biological theory of Evolution by natural selection . The organisms that were used for the basis of his studies were Galapagos finches

Explanation:

It was in Galapagos Island that lie 1000 km west of Ecuador that Darwin made his most important observation. Here e carried out an intensive study on a group of birds called finches. He found several species of finches are adapted to different environmental niches. He found that each island was inhabited by its own kind of finch found nowhere else in the world. Some had beaks that were adapted fr eating large seeds, small seeds and others feeding on insects.

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

interphase

the period of cell growth when the cell synthesizes new molecules and organelles. the cell is not dividing and it constitutes the majority of the time spent in the cell cycle

prophase

changes occur in the nucleus and cytoplasm. the chromatin condenses to form structures (sister chromatids) visible with a light microscope and the mitotic spindle begins to form, but the nucleus is still in tact

prometaphase

the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the sister chromatids

metaphase

all the cell's duplicated chromosomes are lined up at an imaginary plane equidistant between the poles of the mitotic spindle

anaphase

begins when sister chromatids separate from each other and ending when a complete set of daughter chromosomes arrives at each of the two poles of the cell

telophase

the daughter nuclei form at the two poles of a cell

cytokinesis

the division of a cytoplasm to form two separate daughter cells. usually occurs during telophase during mitosis. this and mitosis make up to mitotic (m) phase of the cell cycle