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Before we further proceed to discuss the fossil history of the humans we shall briefly look into what distinguishes humans or genus Homo from his ancestors namely the apes. These differences are clearly indicative of the trends in human evolution which are to a certain extent supported by the available fossil evidence. Is it possible to specify certain criteria for assigning an organism to the family hominidae and the genus Homo? The answer to this question will also indicate certain definite trends in human evolution.
What is a distilling flask and how is it used? A distilling flask is a round bottom flask that often has two openings, and some of them have a long neck.
A leaf is detached from a tree and tested with iodine. The leaf turns dark blue. (a) What does this result tell you? (b) Why is this result not sufficient e
The oxidation of glucose produces NADH that is oxidized by the electron transport chain. What compound is the terminal electron acceptor of the electrons carried by NADH? -O2
Explain the Heat Fixation Method? This is the usual method. Here, bacteria is fixed by gentle heating of air-dried bacterial film, which results in coagulation of bacterial pro
What are the phytoplankton and the zooplankton? The Phytoplankton and the zooplankton are divisions of the plankton. The phytoplankton includes the autotrophic floating beings:
What is the destination of the branchial clefts in humans? In humans the branchial clefts situated in the anterior region of the pharynx (also called as pharyngeal clefts) are
Q Sponge identity card. How are sponges characterized according to example of representing beings, basic morphology, type of symmetry, embryonic (germ) layers and coelom, digestive
Determine the appearance of a plant cell when water is plentiful? When water is plentiful, the central vacuole expands. The other organelles are pushed against the plasma me
Question 1 List the cells and organs involved in immune system. Explain the role of thymus in development of T cells. Add a note on recognition of self antigens by immune system
The movement of Na + and glucose from the lumen of the intestine across the epithelial cell to the blood sets up a dissimilarity in osmotic pressure across the cell. As
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