Biology :: essays research papers

Biology1. The virus is made up of five parts and is in the size range of 10nm-300 nm in diameter. The first is the coat made up of protein that cherishsthe virus to a point. Next is the head that contains the genetical veridical forthe virus. The genetic material for a virus is DNA. The two another(prenominal) parts arethe tail sheath and the tail fibers that are utilise for odd jobs. I believe that avirus is not considered to be a living creature due to the fact it is a parasitical reproducer. To me it is just like ripping up a piece of musical theme becauseit is still the same thing and it isnt carrying out any other give-up the g drove besidesreproduction. Since the virus cannot continue to do its functions withouttaking from a host and being a parasite it is considered an obligated parasite.2. The adult fern plant in its dominate generation (sporophyte)develops sporangium on one side of its leaf. When litotes is finished insidethe sporangia and the spores are completed t he annulus dries out evacuant thespores. The spore germinates and grows into a prothallus which is thegametophyte generation. The antheridia and the archegonia are developed on thebottom of the prothallus. The archegonia are at the notch of the prothallus andthe antheridia are located near the tip. Fertilization occurs when outside moisture is present and the sperm from the antheridia swim to the eggs of thearchegonia. A zygote is create on the prothallus and a new sporophyte grows.4. Flowering plants have unique characteristics that tending them survive.One is the flower itself that contains the reproductive structures. The colorof the flower helps because it may force birds and insects that spread theplants pollen which diversify the later generation of plants. Flowers alsoproduce fruits that protect their seeds and disperses them with the help offruit eating animals.5. Fungi, kingdom Animalia, and, Plantae are all believed to be evolved fromProtista. All 3 of these kingdoms a re eukaryotic and their cells have a magnetic coreand all the other organelles. Fungi live on organic material they digest,Plants produce their take organic material, and Animals go out and find their aliment. Animalia are heterotrophic whereas Plantae are photosynthetic. Fungi whodigest their own food on the outside are different from animals who digest theirfood on the inside. Plants and animals both have organs systems but animalshave make muscle fibers and plants do not.8. The Gasreopoda , Pelecypoda, and the Cephalapoda all have three of