District TED Talk Discussion Answer the following questions in your own words! According to the video, how does the number of cells in humans compare to the number of bacteria cells on a human being? How many genes make up the human genome? How many more bacterial genes are associated with the human body? 2. […]

Natural Selection and Artificial Selection Discussion 1. Compare and contrast natural selection and artificial selection. Give an example of each type of selection.   2. A large community of rattlesnakes, from El Paso, Texas, is separated into two groups, Group A and Group B. Group A is taken 46 miles northwest to Las Cruces, New […]

Photosynthesis, Respiration, and Fermentation Some leaves are variegated. That is, they display colors other than green (e.g. the Coleus plant). Still other plants have leaves that contain areas of white. Use the information from the lab to identify the probable source of ATP for plant cells located in the white regions of the leaf.   […]

Diet and Bone Development Discussion Think about how the knowledge of will the skeletal system, diet and bone development, cranial and facial bones, and types of joints will help you in the field of dental hygiene. Once you have an understanding of why this knowledge is important, please share with your classmates in this discussion […]

Biodiversity and Extinction Discussion We’ve recently discussed how new species arise and also how they end: the process of extinction. Recent research suggests that we may be in the middle of a sixth mass extinction event, in this case caused by humans.   The following articles deal with aspects of world biodiversity and extinctions. Read […]

How Is Meiosis Different from Mitosis Biology Questions Define the following terms: Chromosome:   Locus: Diploid:   Haploid:   Gametes:   Crossing over:   Explain the steps involved in meiosis?    How is meiosis different from mitosis?   3- Draw and label each step of the eukaryotic cell cycle ?   4- Explain how Hershey […]

Understanding Osmosis Please watch this brief video as an introduction to osmosis:   Describe an example of osmosis that we can observe in real life. Explain what is happening at the cellular level, including what is moving across the cell membranes and in which direction (in or out of the cells)?   Include references to […]

DNA Extraction Worksheet 1) What are the physical and chemical barriers in purifying the DNA from intact animal and plant cells?   2) What is the significance of using chelating agents, such as InstaGene, in DNA purification?   3) What structures must be broken to release the DNA from the cells? What molecules may still […]

Question 1 1) List each of the Core Functions of Public Health and the two levels at the CENTER of the Core Functions of Public Health. 2) Then, under each of the Core Functions of Public Health, list the Essential Services that fall within or “under” that Core Function. Finally, a) IN YOUR OWN WORDS, […]

THINKING AS A SCIENTIST After considering the scientific method explained in the textbook, write an essay about how it compares to the way nonscientists approach problems. Identify some problems that are solvable scientifically and some that are not. Using one or two small problems, describe the process you would go through in solving that problem […]