Fungi are microscopic/macroscopic eukaryotic and heterotrophic organisms exhibiting growth on various natural and synthetic substrates and are capable of continuing their function almost indefinitely. Unlike other microorganisms such as algae, fungi lack the chlorophyll necessary for photosynthesis and must therefore live as parasites or saprobes. About 80 000 to 1,20,000 …
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Fungi: Asexual Reproduction & Reproductive Structures
The fungi constitute a group of living organisms devoid of chlorophyll. They resemble simple plants in that, with few exceptions, they have definite cell walls, they are usually nonmotile, although they may have motile reproductive cells, and they reproduce by means of spores. A spore (Gr. spora = seed, spore) …
Read More »Pollination: Introduction, Types and Conditions
Pollination is a very significant process of reproduction in plants. Creating offspring for the next generation is one of the major goals of every organism. Plants are indifferent too. One of the ways that plants can produce offspring is by making seeds, i. e., by sexual reproduction. Seeds contain the …
Read More »Malthus’ Law & How It Catalyzed Darwin’s Thought
Five years with nature aboard, the Beagle destroyed Darwin’s faith in the fixity of species. In July, 1837, shortly after the voyage, he started his first notebook on “transmutation.” Already convinced that evolution had occurred, Darwin sought a theory to explain its mechanism. After much preliminary speculation and a few …
Read More »ATP Synthase: World’s Smallest Motor
Ever wondered that your very own body might contain a motor like the one we use to run any machine? And it is not just any motor, but a motor recorded to be the world’s smallest one. This motor is commonly known as ATP synthase. Every one of the 50 …
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