Answer:
chemical changes is the answer.
Perlemoen is reasonably
easy to take available of the ocean and do not really required huge and
expensive equipment. The poachers take out millions of rands worth of Perlemoen
with relatively simple and cheap equipment such as wet suites, googles and
flippers. The most expensive equipment they use are their boats and vehicles. In
comparison with the lucrative industry the costs of poaching are low. Perlemoen
are often the smaller, younger abalone of the species that are taken because
they are quite simply and easier to harvest.
1.
The younger perlemoen are found closer to the
shoreline and often bunched together and they can get a whole whack of them at
one spot.
2.
The strandlopers harvested the perlemoen from
the rocks during low tide without the need for diving.
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Seed banking is one of the most efficient methods used in biotechnology and genetics wherein a seed is stored in a "bank" in order to preserve its genetic information. The procedure is important because the risk of a plant species getting endangered would be minimised.
If a red blood cell is placed in a hypertonic solution, the cell would shrink.
Hypertonic solution means that the solution has a lower water potential than the other side (which is the cell's cytoplasm in this case), and by that, water molecules would have a tendency to flow from a region of higher water potential to a region of lower water potential. This movement of water molecules is called osmosis. But note that a semi-permeable membrane (a membrane which can decide what substances can go in and out, the cell membrane is an example) has to be present in osmosis, or else the movement may be regarded as diffusion.
As the water molecules flowed away from the red blood cell cytoplasm, the cell loss so much water that the membrane has nothing much to hold and thus the cell shrinks.
The cell uses information from mRNA to produce protein
Explanation:
