Anatomy and embryology gives information on evolution. Anatomy deals with the study of the body structure of the living organisms including the humans. The study of embryos also gives information on evolution. For instance the things that will be present in a fully grown animal can be seen by monitoring the maturation of an embryo. The similarities in early stages disappear on development. For example, the human embryos have a tail like structure at a certain stage of development and gills at one of the stages. The two pair of slits of the gills disappears with the growth of embryo and final pair becomes ear and eustacian canal. This is evidence that humans had tails long ago and also had gills indicating that in the past we were aquatic or marine species.
Embryology gives an idea on how an organism looked at earlier stages. This study supports evolution. The developmental stages of several organisms when studied was found that they are very similar indicating they have evolved from a common ancestor. The anatomy of homologous features in organisms show common ancestry and thus supports evolution.
Answer:
two (a pair)
Explanation:
Centrioles are the pair of hollow cylinders that are located near the nucleus in the cytoplasm in a non-dividing cell. Two centrioles together make a centrosome. Centriole duplication occurs before cell division as the duplicated centrioles take part in the formation of the spindle apparatus. However, cytokinesis distributes one pair of centrioles to each daughter cell. Therefore, after cytokinesis, two centrioles are present in each daughter cell.
Answer;
-Glucose
An energy-rich organic compound needed by organisms is glucose
Explanation;
-Glucose is a simple sugar or carbohydrate that is used by the cell during cellular respiration to generate energy in the form ATP, which is the usable form of energy by the cells.
-Carbohydrates or sugars are energy-rich organic compounds made of carbon, hydrogen and oxygen. Plant cells store excess energy in molecules of starch, while animals store excess energy in molecules of glycogen.
Passive transport molecules move molecules with their concentration gradient
It creates a magnetic field around the Earth.
