It is believed that the tilapia fish was introduced into the mangrove system by escaping from fisheries and aquariums by accident, but this species is also used to control the population of mosquitos to prevent outbreaks of malaria and other invasive species on which they feed.
The tilapia are highly tolerant and easily adaptable to different conditions in the mangrove ecosystem and they are highly efficient predators. This often makes them more successful in the environments where they are introduced than the indigenous species, which results in disruption of the food chain.
The negative human impact on mangroves disrupts the balance in the mangrove ecosystems, weakening the populations of different species that originate from mangrove forests. This leaves more space and resources to be exploited by the tilapia.
The strategies to control tilapia in mangrove ecosystems focus on restoring the habitat and strengthening the populations of indigenous species while decreasing the numbers of tilapia.
The species can be eradicated by selective overfishing of the species or by introducing another species into the habitat which is a natural enemy of the tilapia.
Answer:
(c) sharing of one or more resources between the two species
Explanation:
The total interaction of a species with its environment, or its functional position or status in an ecosystem, is referred to as its ecological niche. The structural adaptations, physical responces, and behaviour of a species determine its ecological niche.
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Answer:
C. From areas of high pressure to areas of low pressure
Explanation:
This is my best guess for you, hopefully you pass
Pollination is the transfer of pollen from the male reproductive structures to the female of seed plants
Answer:
True
Explanation:
Mental demands may be psychological or emotional and could lead to stress if not properly managed.
When stress takes its toll, it limits the individual's ability to perform efficiently on the job even with respect to tasks that are routinely carried out.
With the invent of technology, computers and other mobile devices may be used to reduce the need for memorization, as this involves a lot of mental energy.