Organisms get their energy from different sources depending on where they land in the food chain. This section on How Living Things Get Energy is going to talk about the two big ways that living things get their energy, Cellular Respiration and Photosynthesis.
There are five mechanisms involve in diversity of organisms:
genetic drift, mutation, natural selection, gene flow and non random mating.
Explanation:
Genetic drift: It is a mechanism in which frequency of the allele changes within a population due to random sampling. It causes decrease in diversity in organism and can result in new species.
Mutation: Mutation in the genes is the most important reason of diversity.the change in DNA causes introduction of new alleles. Harmful mutations do not le species evolve by delimiting them from reaching sexual maturity.
Gene flow: The allele flow happens when a new gene is introduced into a population either by immigration or random mating. when two populations of same species share genes, variation occurs.
Natural selection: The favourable traits for survival are transferred to the offspring. It allows them to adapt better to the environment. It allows maintenance diversity of organism.
Non random mating: The mating between the individual with varied genotype will result in genetic variation.
No species exists in a vacuum; every form of life on Earth interacts over time with other organisms, as well as with its physical environment. For that reason, the evolution of one species influences the evolution of species with which it coexists by changing the natural selection pressures those species face.
The intensive agricultural practices contribute to the climate change because of the usage of fossil fuels. Most of the machines used in the agriculture use fossil fuels, so the more they are sued, the more CO2 ends up into the atmosphere. The more CO2 ends up into the atmosphere, the greater the Greenhouse effect. The CO2 is a gas that has the property to trap the heat, thus instead of letting it out from the atmosphere it keeps it inside, thus warming up the climate. It has to be noticed that the agriculture is one of the lesser contributors to the climate change, and it is far behind the bigger contributors.
Answer: Flooding
Explanation:
With the current climate change our polar ice caps are melting, therefore increasing sea levels and flooding.