The presence of a homologous structure suggests common ancestry, and further suggests that the nearest common ancestor of two organisms had the trait which is homologous. Comparison of several modern organisms with different variations of the same homologous structure can suggest what the original ancestor's actual characteristics were, and comparison of the structure in different organisms can also suggest which organisms are more or less closely related
Answer:
Lysosomes
Explanation:
Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids. Lysosomes function as the digestive system of the cell, serving both to degrade material taken up from outside the cell and to digest obsolete components of the cell itself. In their simplest form, lysosomes are visualized as dense spherical vacuoles, but they can display considerable variation in size and shape as a result of differences in the materials that have been taken up for digestion. Lysosomes thus represent morphologically diverse organelles defined by the common function of degrading intracellular material.
The characteristics of life are
-Having cells
-Growing
-Responding to its enviornment
-Having DNA
-Consuming and or using energy
-Reproducing
-Maintaining homiostasis
Viruses are not considerd alive because they dind
-Have DNA
-Have cells
-Maintain homiostasis
-Consume energy
Answer:
Animal-like protists are called protozoa. Most consist of a single cell.
Plant-like protists are called algae. They include single-celled diatoms and multicellular seaweed.
Fungus-like protists are molds. They are absorptive feeders, found on decaying organic matter.
Explanation:
