Biodiversity is essential in medicine as most active chemicals used to make medicines are derived from plants or other organisms. Climate change today threatens species that are vital to medicine. An example would be coral reefs. Studies have been done on reefs that look at fighting cancers, HIV and other ailments. One of the richest zones of biodiversity is the tropics and this region is under threat from global warming and deforestation. It is important to preserve these species for use in future medicinal research. <span />
The answer is phenotypes.
Phenotype is the physical characteristics of an organism which are the result of interaction between genotype and environment. <span>Genotype is the entire set of genes in the organism. </span>Genes have alternative forms called alleles which can be the same or different at one locus. No matter if they are different, they have the same function but give different physical characteristics. Knowing the genotype can help predicting the phenotype. For example, if we know which genes determine the eye color and know someone's genotype, it is easy to predict if someone will have blue or brown eyes.
Cell wall is the outer permeable covering in all pants and almost all prokaryotes ! cell wall are mainly made up of cellulose , sometime by chitin!!
Answer:
convergent evolution
Explanation:
If we have two species that share a similar trait or look alike a lot, but they live in places isolated from each other, and they only have a very distant relation, then it is a case of convergent evolution. This type of evolution occurs with species that are not closely related, but they live in environments where having the same or very similar traits is advantageous. This can often lead to a confusion when looking at the species only on the outside, and it can be very misleading. As an example we can take the sabretoothed predators that existed in the past. Both the smiloden and the thylacosmilus had large saber like teeth, and even their bodies looked very similar, so one would assume that they are closely related, but that was not the case. The smilodon was part of the cat family, while the thylacosmilus was a marsupial, making them very distantly related. They developed same same and some very similar traits because their environment created the evolutionary pressure for those traits to develop as they were advantageous, despite them evolving in totally different places and separately.
Explanation:
providing structural support, storing energy and sending cellular communication signals..
polysaccharide are an important class of biological polymers. their function in living organisms is usually structure or storage related.. starch (a polymer of glucose) is used as a storage polysaccharide in plants.