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What are 4 main difficulties that had to be solved with this evolution? How were they solved?
Explain the formation of sperm cells from the germ cells be described, by indicating the name and respective ploidy of every involved cell?
In sulphur photosynthetic bacteria name the molecule which donates hydrogen for photosynthesis?
Regarding extracellular digestion what do you mean by chemical digestion? Answer: Chemical digestion is the sequence of enzymatic reactions to break macromolecules i
What do you mean by the parathyroids? Where are they situated and specify the hormones which is secreted by these glands?
How is photic energy absorbed by the chlorophyll transferred to ATP molecules in photophosphorylation? How will be the resultant ATP utilized?
How the chromosome area where the centromere is situated is termed? How are chromosomes categorized in relation to the position of their centromere?
Give a brief description of visual accommodation?
Are xylem and phloem made of the living cells?
What takes place throughout the aerobic respiration to pyruvic acid molecules made up by glycolysis? What sequence of reactions that then follows?
How dissimilar are the respiration in fishes and the respiration in adult amphibians?
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