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Biological classification is the process by which scientists group living organisms. Organisms are classified based on how similar they are. Historically, similarity was determined by examining the physical characteristics of an organism but modern classification uses a variety of techniques including genetic analysis.
Explanation:
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Answer:protonema
Explanation:
Mosses have protonema that develops from germinating spores,which is a multicellular filament. This filament has high chlorophyll content and hence can photosynthesis generating food for its growth.
A protonema may produce leafy shoot and this is done under a favourable condition, this shoot later develop into bud.
Answer:
B ) Valves
Explanation:
Valves allow blood to flow only in one direction and prevent the backflow.
The skin of the animal<span> is one of the first systems affected so it is the first indicator when an </span>animal becomes sick. The skin of an animal should be examined for signs of disease. Examined should be the structure and the <span>functioning of the skin. If there are some abnormalities it can be sign that the animal is sick. </span>
Genetically modified crops are produced through an organism that undergone changes in its DNA using the process of Genetic Engineering. Genetically foods are being generated and tested inside a laboratory. A natural tastes and feature of a food is being change into something different in tastes and feature.