Ans: D
Chemical changes:-
occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.
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Answer:
Limewater
Explanation:
Limewater is a solution of calcium hydroxide. if co2 is bubbled through lime water it will turn into a milky color.
Answer:
C
Explanation: in multicellular organisms, there are cellular specialization and division of labour among the cells
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Answer:
<em>The correct option is d) gymnosperms and angiosperms</em>
Explanation:
Gymnosperms can be described as plant species which do not produce flowers. These plant species produce cone and seeds instead of flowers.
Angiosperms can be described as the plants which produce flowers. These plant type comprises of eggs which when fertilized develop into seeds. Angiosperms are also known as flowering plants.
Bacteria are the single-celled organisms can be edible as well as pathogenic.
Bacteria are the microorganisms that are omnipresent in nature. They can be mostly free-living organisms that can be useful as well as harmful for the living species. They can occur in a variety of shapes like spiral, coccus, vibrio, etc. Lactobacillus, Acetobacter aceti are the bacteria that are edible in nature.
Pathogenicity is the ability of an organism to infect another living organisms. They spread disease after the infection. This ability is present in a wide variety of organisms, both prokaryotic as well as eukaryotic. Viruses are considered to be the most notorious forms of pathogens.
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