Carbohydrates can be used as an immediate source of energy by largely all cells, but in many photosynthetic organisms a major portion of the carbohydrates will be used for production of structural compounds, e.g., cellulose in cells walls, or for synthesis of storage products such as starch.
(From the website science direct)
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A homologous structure is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor. In other words, it's when very different animals have bones that appear very similar in form or function and seem to be related.
<span>If you have hepatitis A infection you have inflammation in your liver that's caused by a
virus. Other symptoms of this virus are jaundice (yellow eyes and skin, dark urine), pain in
your belly, loss of appetite, nausea, fever, diarrhea and fatigue. </span>A vaccination against
this virus is unnecessary if you have been infected in the past.
Atoms, molecules, ORGANELLES, cells, ORGAN ,organ system, ORGANISM, population and community
ORGANELLES, ORGAN, ORGANISM.
Answer:
Four
Explanation:
During spermatogenesis, some diploid spermatogonia become larger in size and transform into primary spermatocytes. These diploid primary spermatocytes enter meiosis to produce haploid spermatids. One primary spermatocyte enters meiosis-I and produces two secondary spermatocytes. These secondary spermatocytes are haploids. Each of these two secondary spermatocytes enters the meiosis-II and produces two haploid spermatids. In this way, one diploid primary spermatocyte produces four haploid spermatids.
