Population extinction is a natural occurrence, but because the pace of extinction on a global scale is increasing, understanding extinction is crucial for conservation. To evaluate proposed extinction processes, the rate of extinction in experimental populations of brine shrimp (Artemia franciscana) was evaluated. As was predicted, the chance of extinction was decreased by a larger initial population, a larger maximum population size supported by the environment, and less change in environmental variables. However, contrary to popular belief, maximum population size and environmental variation were more significant than initial population size. Unexpectedly, the importance of deterministic population oscillations brought on by inborn nonlinear dynamics and overcrowding was equal to or greater than that of the assumed processes.
<h3>What is
extinction?</h3>
Extinction happens when species become endangered due to environmental factors such habitat loss, climate change, natural disasters, human overuse, and pollution, or because of evolutionary changes in its constituent parts.
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When a drug binds to a receptor in the body , the receptor is activated or inactivated.
Molecules such as hormones, drugs or neurotransmitters that bind to a receptor are called ligands. The binding can be specific and reversible. A ligand may activate or inactivate the receptor; activation may increase or decrease a particular cell function. Each ligand may interact with multiple receptor subtypes.
An example where space would be a limiting factor would be this: Wolves live in a very good habitat for them - there are plenty of animals to be found and eaten. However, because their current habitat is rather limited, they cannot expand beyond a certain size because otherwise they would interfere with the habitat of each other and also reduce the amount of necessary food in the environment.
