Answer:
Chromosome is made up of protein and DNA molecule.
Explanation:
Chromosome is a thread like structure which is formed from protein and one molecule of DNA. It is present inside the cell of both plant and animals. DNA is a heredity material which contains all characteristics of an organism. Genetic code are codes which contains information about the formation of a specific protein while gene expression is a process in which genetic code is used for the synthesis of proteins. There is no specific role of DNA segments that do not code for proteins but some scientist belief that it control the activity of the gene.
Explanation:
Protandry - Male reproduction organ/anthers androecia/ stamens mature earlier than female reproduction organ/ carpels/ stigma/ pistil/ gynoecium in a flower. (ii) Self sterility - pollen grains are sterile to stigma of the same plants or same flowers.
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The last part is the anus.
Answer: Migration, because species move to other places for food or a better or more suitable habitat and sometimes their is other species there.