Mitosis and Meiosis Cell Division Lab Part 1-MITOSIS summary: In this experiment first the stages of an onion cell undergoing mitosis are going to be observed and every stage is going to be detected and drawn on paper. A brief description to what is going on should be attached to the pictures. This is important to understand the basics of cell division which is necessary […]

Table 1 Trial Number The Concentration of Sucrose Solution (M) ±0. 2 ml Initial Mass of Potato Core Slice(g) ±0. 1 Final Mass of Potato Core Slices (g) ±0. 1 1 0. 0 7. 7 9. 3 2 – 6. 0 8. 1 3 – 6. 2 7. 4 4 – 10. 2 13. 2 5 – 8. 7 10. 3 6 – 4. 9 […]

Bottle Biology Project I made a two-layered bottle ecosystem. In the bottom layer, there is an aquatic ecosystem. In the aquatic ecosystem, there is one organism; a goldfish. In the top layer, there is a land ecosystem. There are many plants and other pudding flowers. This is a good example of two organisms from different ecosystems. There were not as many steps as I thought […]

Brian Toohey Biology Mrs. Heimforth 12/06/10 Diffuse the Osmosis Section 2: Introduction Step 1: The scientific concept of this lab was to see how osmosis transferred the substance through the cells to reach equilibrium. Step 2: My hypothesis was that the bag with 60% sucrose then it would be heavier than the bag with tap water or 30% sucrose. I thought this because I thought […]

Marine Biology also refers to Biological Sciences or Biological Oceanography. Marine Science is the general term for research conducted in oceans and coastal or inland waters connected to the sea. This particular field is probably the best known to the public. Marine Biology deals with the study of micro and living organisms such as plants, animals, viruses, and bacteria in oceans, estuaries, and other bodies […]

Genes and Genetics 1. 2. each chromosome exists as two genetically identical chromatids attached to their centromere. Each chromosome appears as two chromatids attached to a centromere. In the first meiotic division chromosomes align in homologous pairs. Points of contact form between members of the same homologous pair. The points of contact or crossing over between members of a homologous pair are the chiasmata. 3. […]

Midterm Study Guide Answers 1. A hypothesis is an explanation of observations. “If the floor is wet, I will slip. ” 2. A controlled experiment is when only one variable is changed. 3. If the plant you are experimenting with has a disease that is an unavoidable experimental error. 4. An enzyme speeds up reactions and lowers the energy it takes to produce something, a […]

Page I – Cover sheet In the middle f the page give name and number of your microorganism In the right lower corner provide – your name – Lab section number (Biol 108-005) – Date submitted ( 4/18/2013) – the unknown tube # is 5 Page II table of result – This page will have your table of results include the following information – Name […]

Viruses can vary with respect to all of the following characteristics except _____. (Overview) Your Answer: the presence or absence of a membranous envelope Correct Answer :the presence or absence of metabolic machinery   No. This is a difference among viruses. A microbiologist analyzes chemicals obtained from an enveloped RNA virus that infects monkeys. He finds that the viral envelope contains a protein characteristic of […]

Parasitic Nutrition 21 May 2011 10:43 = organisms that live on or in another organism obtaining nourishment at the expense of the host and causing harm. Gut parasite (Taenia solium) = tapeworm Primary host = human (eat uncooked infected pork) Secondary host = pig (drainage channels contaminated by human faeces) Adaptations… – Suckers & hookers (attachment) – Body covering (immune responses) – Thick cuticle (inhibitory […]