Answer:
Through natural selection, organisms carrying better traits to survive in an ecosystem are able to survive and pass on their characteristics to their offspring. Through evolution, the allelic frequency of the population changes in abundance of the traits which are favoured by natural selection. As the male pom-pom monkeys carrying long bright puffs of turquoise fur all around his neck had a better adaptation to survive on the island hence, they were favoured by natural selection and through evolution all long bright puffs of turquoise fur all around his neck evolved.
<span>In Mendel's experiment with round- and wrinkled-seed plants, the ratio of round to wrinkled seeds in the F2 generation was 3:1. In other words, 75% of the seeds were round and the remaining 25% of the seeds were wrinkled.</span>
Answer:
1. In the natural carbon cycle, there are two main processes which occur: photosynthesis and metabolism. During photosynthesis, plants use carbon dioxide and produce oxygen. During metabolism oxygen is used and carbon dioxide is a product.
2. When fossil fuels are burned, they release carbon dioxide and other greenhouse gases, which in turn trap heat in our atmosphere, making them the primary contributors to global warming and climate change.
3. it Disrupts the nitrogen cycle by contaminating the groundwater and making it more difficult for the plants to absorb the nitrogen and causes the phosphorus cycle to accelerate, resulting in an excess of phosphorus in water and soil.
4. The phosphorous cycle is slower than carbon cycle and nitrogen cycle because phosphorous is found mainly in very small dust particles. It moves very slowly from the deposits on land and in sediments and then it is transferred to the organism and from organism it is moved more slowly to the soil.
Answer:
Increase in frequency.
Explanation:
The theory of natural selection states that genetic variations are present in the natural populations. Some organisms have one or more genetic variations which in turn increase their chances of survival and enable them to reproduce more. These organisms leave more progeny. It results in an increase in the frequency of those beneficial genetic variations in the population over the generations. This is how natural selection favors adaptive genetic traits and increase their frequency in the populations.