A choice that is involved in both sexual and asexual reproduction are spores.
They are semi-permeable because they can diffuse and pass through the plasma membrane easily.
Answer:
With nuclear fission, a large atomic nucleus (such as a uranium nucleus) breaks apart into smaller nuclei, and energy is released. With nuclear fusion, small atomic nuclei (such as hydrogen) join to become larger nuclei, and energy is released. Fusion of hydrogen releases much more energy than any other type of either fusion or fission. Note that the dividing line between heavy nuclei and light nuclei is the iron nucleus, which is at the perfect point of nuclear stability, so that neither fusion nor fission of iron nuclei would release any energy.
The best way how one could characterize and describe the study of ecology would be through B - the two-way relationship between a living and its small environment. Because this is the exact reason and thing that ecology is in essence.
