explain the following
biological magnification
vegetative propagation
spore formation????
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Biological magnification often refers to the process whereby certain substances such as pesticides or heavy metals move up the food chain, work their way into rivers or lakes, and are eaten by aquatic organisms such as fish, which in turn are eaten by large birds, animals or humans.
vegetative propagation is a form of asexual reproduction in plants. It is a process by which new organisms arise without production of seeds or spores. It can occur naturally or be induced by horticulturists.
Spore formation is a mode of reproduction resembling multiple fission, common among Protozoa, in which the organism breaks up into a number of pieces, or spores, each of which eventually develops into an organism like the parent form. The formation of reproductive cells or spores, as in the growth of bacilli.
vegetative propagation is a form of asexual reproduction in plants. It is a process by which new organisms arise without production of seeds or spores. It can occur naturally or be induced by horticulturists.
Spore formation is a mode of reproduction resembling multiple fission, common among Protozoa, in which the organism breaks up into a number of pieces, or spores, each of which eventually develops into an organism like the parent form. The formation of reproductive cells or spores, as in the growth of bacilli.
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Biological magnification
The progressive increase in the toxicants in successive levels in a topic level is known as biological magnification.
spore formation
Even in many simple multi-cellular organisms, specific reproductive parts can be identified. The thread-like structures that developed on the bread in Activity 8.2 above are the hyphae of the bread mould (Rhizopus). They are not reproductive parts. On the other hand, the tiny blob-on-a-stick structures are involved in reproduction. The blobs are sporangia, which contain cells, or spores, that can eventually develop into new Rhizopus individuals
The spores are covered by thick walls that protect them until they come into contact with another moist surface and can begin to grow.
All the modes of reproduction that we have discussed so far allow new generations to be created from a single individual. This is known as asexual reproduction.
The progressive increase in the toxicants in successive levels in a topic level is known as biological magnification.
spore formation
Even in many simple multi-cellular organisms, specific reproductive parts can be identified. The thread-like structures that developed on the bread in Activity 8.2 above are the hyphae of the bread mould (Rhizopus). They are not reproductive parts. On the other hand, the tiny blob-on-a-stick structures are involved in reproduction. The blobs are sporangia, which contain cells, or spores, that can eventually develop into new Rhizopus individuals
The spores are covered by thick walls that protect them until they come into contact with another moist surface and can begin to grow.
All the modes of reproduction that we have discussed so far allow new generations to be created from a single individual. This is known as asexual reproduction.
Nicely explained
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