Biology :: essays research papers

Biology1. The computer virus is made up of pursuefin parts and is in the size range of 10nm-300 nm in diameter. The first is the coat made up of protein that protectsthe virus to a point. succeeding(prenominal) is the head that contains the genetic material forthe virus. The genetic material for a virus is DNA. The two other parts arethe tail sheath and the tail fibers that are used for odd jobs. I believe that avirus is not considered to be a living creature due to the particular it is aparasitic reproducer. To me it is just like ripping up a piece of paper becauseit is still the same thing and it isnt carrying egress each other function besidesreproduction. Since the virus cannot continue to do its functions withoutpickings from a host and being a parasite it is considered an obligated parasite.2. The self-aggrandising fern plant in its dominate generation (sporophyte)develops sporangium on wizard side of its leaf. When meiosis is finished insidethe sporangia and the spo res are completed the anchor ring dries out releasing thespores. The spore germinates and grows into a prothallus which is thegametophyte generation. The antheridia and the archegonia are developed on the infiltrate of the prothallus. The archegonia are at the notch of the prothallus andthe antheridia are located near the tip. impregnation occurs when outsidemoisture is present and the sperm from the antheridia swim to the eggs of thearchegonia. A zygote is formed on the prothallus and a new sporophyte grows.4. Flowering plants permit unique characteristics that help them survive.One is the prime quantity itself that contains the reproductive structures. The colorof the flower helps because it may attract birds and insects that spread theplants pollen which diversify the later generation of plants. Flowers alikeproduce fruits that protect their seeds and disperses them with the help offruit eating animals.5. fungus kingdom, Animalia, and, Plantae are all believed to be evolved f romProtista. All 3 of these kingdoms are eukaryotic and their cells deal a nucleusand all the other organelles. Fungi live on organic material they digest,Plants produce their own organic material, and Animals go out and find theirfood. Animalia are heterotrophic whereas Plantae are photosynthetic. Fungi whodigest their own food on the outside are contrastive from animals who digest theirfood on the inside. Plants and animals both have organs systems solely animalshave organized muscle fibers and plants do not.8. The Gasreopoda , Pelecypoda, and the Cephalapoda all have tierce of