Answer:
Botulinum is a toxin that can be used to cure wrinkles in human beings by injecting it in very small concentrations and it works in preventing the signals from the nerve cells to muscles and thus paralyzing them by stopping wrinkle formation.
Wrinkles are caused by the contraction of muscles and this neurotransmitter does not allows the muscles to contract. In order to contract nerves release a chemical messenger called as acetycholine. This neurotransmitter is found at the junction where the nerve cell reaches the muscle cell. This causes contraction of muscles.
Injecting botulinum prevents the release of acetylcholine which prevents the contraction of muscle, causing reduction in wrinkles and muscles become stiff.
According to sources, the most probable answer to this query is that forest is not a renewable resource. This is because when we utilize a land filled with forests, it an take years to recover and with the increasing demand of land. This is being threatened.
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A) Water, Light, Chlorophyll, Carbon Dioxid
Glucose and oxygen play the role of the reactants in cellular respiration. We breathe in oxygen and our bodies use glucose (sugar) to make energy. Energy is then stored as ATP and CO2.
Answer:
In the natural world, limiting factors like the availability of food, water, shelter and space can change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations.
Explanation: