Multicellular organism

Molds are multi- or unicellular while yeasts are unicellular in structure. Molds grow in the form of tangled mass called the mycelium which is composed of filamentous hyphae while yeasts are spherical or oval-shaped. Molds are colourful while yeast are colourless. Molds can reproduce through small spores sexually or asexually while yeast reproduce asexually by budding or binary fission through mitosis in which a nucleus is divided into two or more nuclei. Mould can grow on food with low pH…

In the book Xenocide by Orson Scott Card, the ideas between protagonist and antagonists vary because each type of living being on the planet, Lusitania, is going against each other for the greater good of their own species. The humans are dying off from the descolada, a disease that the pequeninos, an alien species that are structured like large pigs who can walk and talk, need in order to survive and move on to their third life as “fathertrees.” And the humans are trying to tame this descolada…

3. The earthworm has a segmented body with a mouth at the anterior end and an anus at the posterior end. It has a smooth, purple dorsal side and a rough, yellow ventral side with setae. Two sperm grooves run along the body from segment 15 (where sperm ducts are also located) to the clitellum, which looks like a tube surrounding the earthworm’s body and is closer to the anterior end. 4. The setae are likely on the outside of the body for more effective locomotion. They allow the earthworm to…

I agree with the theory of evolution because there are many evidence for it. The evidence includes fossil record, species distributions, vertebrate development process and fossil layers and so on. First, fossil is very important for understanding biological evolution. It can tell us how the living creature evolved. Second, it is species distributions. According to theory of continental drift, it found out many similar fossils even in the place oversea. Third is vertebrate development process,…

Siqi Li May 2015 What topics will students address during the beginning of the school year in Buffalo? During the beginning of the school year in Buffalo, students will study two parts of Living Environment in 7 weeks. The main topic is about the introduction to the course includes the cell which is the foundation of the study of all living things. The key idea 1 in curriculum, living things are both similar and different from each other from nonliving things. The enduring understanding is…

is the process in which living organisms have changed and developed ”evolved” into different species, but are believed to have derived or originated from a single species or ancestral background (Biological Def.). This can be proven by studying the changes of, DNA, anatomical structures, and embryological development, over a long period of time. The existence of evolution can also be proven by studying cladograms, the homologous and analogous structures of an organism, and fossil records. The…

1. In the article entitled, “The DNA Mystique: The Gene as a Cultural Icon,” authors Dorothy Nelkin and Susan Lindee argue that the gene has influence as a social symbol outside of its biological domain, becoming something like a “magical force”. Nelkin and Lindee describe the gene as, “powerful, deterministic, and central to an understanding of both everyday behavior and the “secret of life””. The popular media has helped to shape the general public’s view of the gene as an all powerful device…

The oldest forms of life are single-celled organisms known as microbes. There are many different types of microbes that are found all around the world, and they play an important role in the environment, in the body of animals, and even in the health of plants. The specific type of microbe investigated in this paper is the gram positive bacterium known as Kocuria rhizophila, which has a bright yellow color that simplifies identification. The main objectives of the paper are the following:…

The article “Tweak in Gene Expression May Have Helped Humans Walk Upright” found on Science Daily discusses work conducted by researchers at the Stanford University School of Medicine and at the HudsonAlpha Institute for Biotechnology. These researchers have been able to distinguish what gave us humans the ability to walk upright through research conducted on the fish threespine stickleback. The fish has evolved multiple times over time in order to match different environments around the world.…

The Epigenetics Revolution: How Modern Biology Is Rewriting Our Understanding of Genetics, Disease, and Inheritance, written by Nessa Carey, is a uniquely constructed introduction to the world of epigenetics. Regardless of its recent emergence in science, Carey articulately ties in both historical context and scientific evidence to outline and support the developing knowledge of epigenetics. She uses scientific studies, advances, and even possible future developments of the field to engage and…