Answer:
ecosystems are a topic in a biology courses
Impact the amount of carbon in the atmosphere, the biosphere, and the
hydrosphere
Explanation:
The processes of photosynthesis and cellular respiration play a major role in the carbon cycle.
Both these processes are interconnected where the products of a process become reactants of the other process.
Carbon dioxide and water released through cellular respiration become the reactants for photosynthesis which releases oxygen needed for cellular respiration.
The oxygen released is used by animals and human beings for respiration and releases carbon dioxide which is once again used by plants during photosynthesis. This gaseous exchange happening during these two processes helps to maintain atmospheric carbon dioxide levels stable.
In the biosphere, carbon is stored in the organic form in plants and trees. Plants absorb the external atmospheric carbon dioxide and convert it into organic form and store it as food by the process of photosynthesis.
In the hydrosphere, carbon is available as dissolved in water in the water bodies like ocean, rivers, etc. this carbon is absorbed by marine or aquatic plants to undergo photosynthesis and produce their own food. Again the organic carbon is formed and stored in the form of food which is used by other aquatic organisms.
Answer:
Sister chromatids. (Ans. B)
Explanation:
Sister chromatids are defined as the identical chromatids formed by the DNA replication of the chromosome, both copies of chromatids are joint together by a centromere. A pair of chromatids are known as dyad.
A set of sister chromatids formed during the S phase or synthesis phase of interphase, while all the chromosomes present in a cell is replicated. During the process of mitosis, or second division of meiosis the two sister chromatids are gets separated from each other into two different daughter cells, and each cell receives one copy of the chromosomes.
Answer:
C is correct ans
Explanation:
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