Answer;
-Gap junctions
Explanation;
-Gap junctions are a specialized intercellular connection between a multitude of animal cell-types. they are organized collections of protein channels in cell membranes that allows ions and small molecules to pass between adjacent cells.
-Gap junctions allow the exchange of ions, second messengers, and small metabolites between adjacent cells and are formed by two unrelated protein families, the pannexins and connexins.
The correct answer is complete flower. A flower that Contains both a male and a female reproductive structure is considered a complete flower.
<h3>What are complete flower?</h3>
A complete flower is a flower that includes all the four whorls such as petals, sepals, the male reproductive structure and female reproductive structure (pistil/ carpel).
Hence it is also called as a complete or perfect flower. Petunia is a complete flower.
Thus the correct answer is complete flower, is also called as a perfect flower.
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Answer:
D. antigen only come from microbes
Explanation:
Antigens are substances which elicits a response by the antibodies. Antigens Antigens include proteins, nucleic acids, lipoproteins, glycoproteins, and certain large polysaccharides.
They parts of antigen molecules that initiate immune responses are called epitopes or antigenic determinants.
Undersea volcano erupts,then seeds are carried,then grass seeds poke out and later on grow, then shrubs and bushes are formed, then later grow on to be trees, then the island becomes a thick forest, then a volcano eventually erupts, causing the forest to be covered in hot, fresh lava, then the cycle continues! Have a wonderful day!
