Concepts of molecules-atoms-cells
Write down the logical order in which the concepts of molecules, atoms, cells... up to biosphere are allocated?
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Atoms form molecules which form cells which form tissues which form organs which form systems. Systems, in their turn, constitute individuals which form populations which compound (biological) communities which form biotic components of the ecosystems. All ecosystems of earth form biosphere.
Write down the best known representatives of the platyhelminth phylum?
Throughout mitotic anaphase is there separation of homologous chromosomes or separation of identical chromatids?
Is it right to consider water decomposition by the action of light on the basis of photosynthesis method?
Explain whether the transpiration is the only way through which leaves lose water?
Give a brief description of respiratory pigments? Which respiratory pigment present in arthropods? Which analogous molecule present in humans?
Elucidate the completing series of nitrogen-containing bases for an AGCCGTTAAC fragment of a DNA chain? Answer: The outcome is: TCGGCAATTG.
An oak tree cell with 14 chromosomes undergoes mitosis. How many daughter cells are formed, and what is the chromosome number in each cell? If the same cell had undergone meiosis, how many cells would have resulted, and what would have been the chromosome number in each?
How can the knowledge regarding fermentation describe the origin of muscle cramps and pains after the intense physical exertion?
Evolutionarily protochordates can be intermediate animals between the invertebrates and vertebrates. Consider the scientist is testing hypothesis, which states that vertebrates are evolved from echinoderms. Being research objects a newly evolved protochordate species,
Describe briefly the term muscle tissues? How is the function of this tissue related to typical features of its cells?
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