A diagram should accompanying the question.
Plant cells and animal cells have organelles or structures that are common to both and some that are unique.
Unlike animal cells, plant cells possess chloroplasts, vacuoles, and a cell wall. the chloroplasts are the hub for photosynthesis, vacuoles hold water or sap and the cell wall gives plant cells a definite structure.
Animal cells are typically smaller than plant cells. Both cells have cell membranes, nucleus, mitochondria and golgi apparatus.
Answer: Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. ... As a result, the tree-colored moths are more likely to survive, reproduce, and pass on their genes.
Explanation:
Answer:
C) the facial nerve (VII)
Explanation:
The facial nerve (VII) is a cranial nerve. The cranial nerves are those nerves which arise from the brain. Most of the cranial nerves contain both motor and sensory neurons. Cranial nerves are connect to the various organs. Cranial nerves are associated with parasympathetic nervous system.
The facial nerve supplies nerve to many glands of the head and neck including lacrimal glands.
Thus, the facial nerve (VII) provided the stimulus to the lacrimal gland that cause tear while chopping oninons.
Answer:
Bacterial flagella is the external structure that is thin, long and filamentous. It is attached to the cell wall of the bacteria which helps in the locomotion of the bacteria. It has three parts a filament, hook and basal body. The basal body is incorporated in the cell membrane.
A flagellum is made up of a protein called flagellin. It is a rigid protein and helps in making the hollow core of the filament by assembling together to form a structure which is cylindrical in shape.
The organization of flagella on bacterial cells is helpful in the identification of bacterial species. Mostly 4 type of organization of flagella is present on bacterial cell that are monotrichous, amphitrichous, lophoyrichous and perithrichous.
In monotrichious bacteria, only one flagella is present on one side, in amphitrichous both side of the cell have an equal amount of flagella. Lophotrichous bacteria have a group of flagella at one side of the cell and amphitrichous bacteria have many flagella distributed equally on its cell.
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