<span>Energy must constantly flow through an ecosystem for the system to remain stable.</span> it means that organisms must eat other organisms
Molecular clocks use rates of mutation to measure evolutionary time.Mutations add up at a fairly constant rate in the DNA of species that evolved from a common ancestor. The more mutations that happened in each lineage, the greater is the differences between these lineages.
Answer:
agricultural extension agent are train expert that acts as a middle man between the farmers and research institute or organisation. they are saddled with the responsibilities of bringing new innovations, technologies, knowledge e.t.c concerning agriculture to farmers and they in turn takes farmers concerns, complains and outcry to research institute.
they help to teach farmers on how too use modern farm tools and technologies. the extension agent use different methods to arouse or captivate the farmers and they are agent of change in that they help people form their own organizations in order to be able to tackle their problems.
they pass through different training and workshops and belong to a professional body before they can be certified an agricultural extension agent.Agricultural extension trainning/programmes cover a broad area including improved crop varieties, better livestock control, improved water management, and the control of weeds, pests or plant diseases. they are well paid and derive maximum satisfaction when helping farmers and proffering solutions to their problems.
Explanation:
Dominant m8 hope this hleps
