<span>Trophic level is level in the movement of energy through an ecosystem. It describes the organism's feeding status in an ecosystem.
</span>An organism that feeds at several trophic levels is an example of a carnivore (<span>animal that gets food from killing and eating other animals.).</span>
Both biotic and abiotic factors are related to each other in an ecosystem, and if one factor is changed or removed, it can affect the entire ecosystem.
Like the right atrium, the left atrium also has valve in its auricle.
<h3>What is heart?</h3>
The heart is defined as the major organ of the cardiovascular system which is used by the body to pump blood through out the cardiovascular system.
The heart is made up of the following:
Both the left and right atrium are separated from the ventricle by the valves which helps to prevent the back flow of blood.
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Answer:
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
<u><em>Definitions:</em></u>
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<u>Predation rate</u>
is the annual mortality within. a population directly attributable to predation; it represents the level of. successful predator attacks that the animals are unable to control after they. have implemented their antipredator strategies. Predation risk, on the.
<u>random mutations:</u>
What is commonly called "random mutation" does not in fact occur in a mathematically random pattern. The process of genetic mutation is extremely complex, with multiple pathways, involving more than one system. Current research suggests most spontaneous mutations occur as errors in the repair process for damaged DNA.
<u>competition:</u>
the activity or condition of competing.
<u>environmental changes:</u>
Examples of these global environmental changes include climate change, freshwater shortages, loss of biodiversity (with consequent changes to functioning of ecosystems), and exhaustion of fisheries.
