I do not understand how to work with UV beads.
My science teacher gave me 10 "beads" that have an unusual property... they change color: purple, pink, green etc, with sunlight. My assignment is to investigate this special property of the beads, and try to determine how they do what they do. I must design and conduct, at home, two original controlled experiments pertainin ...continues
Qualitative and Quantitative Analysis
What is the difference between qualitative analysis and quantitative anlysis when doing an experiment?
Analysis of simple flow cytometry data plots.
1. What type of immune cells are displayed in this plot? (See attachment for plot) 2. In advanced HIV disease the percentage of cells in which population would be reduced? (See attachment for plot) 3. How many populations of cells are visible in this plot? (See attachment for plot)
In the pre-1850 grasslands of North America there were hundreds of millions of grazing animals such as buffalo, antelope and deer. At the same time there were many fewer meat eaters, such as wolves. Explain in terms of energy flow in ecosystems and the Second law of Thermodynamics why there were so many grazers and so relatively ...continues
The experiment was which carboydrates yeast can be used as a substrate to ferment yeast. temp set at 20 degrees c pH7 20 mls of glucose, sucrose. lactose, and galactose is added to each to it's own seperate fementation tube. iml of yeast is added to each tube. After 20 minutes the volume of carbondioxide is measured. ...continues
A step by step example of how to figure standard deviation using numbers.
I have lots of data -21 people with various info on each- I need to compare data for each via gender, age, etc.. but my problem is that I need to do this by using standarad deviations- I have tried numerous sites to figure how to do this- But every site uses charts- I need an example that is similar to my problem-using #'s not c ...continues
(See attached file for full problem description) --- In the animal kingdom, you can place animals in categories based on certain differences in the characteristics that each possesses. If you know what critical traits to look for, it is possible to separate any animal into its proper taxonomic category. Use this dichotomous ...continues
Plant Characteristics Multiple Choice
PLANTS -All modern plants are probably descendants of A. Fungi Green algae Club mosses Horsetails -Protists include A. Ferns Gymnosperms Angiosperms Green algae -An adaptation of land plants that inhibits water loss is the A. cell wall chloroplast cuticle vascular tissue ...continues
-Vegetative reproduction in a creeping stem differs from the growth of an ordinary stem because after a creeper is rooted, it separates from the parent plant and grows independently grows faster dies off produces seeds -A gardener grows a new plant from cutting by means of Budding Corms Tubers Rege ...continues
MATCH TO DIRECTION CHOOSE THE WORD OR PHRASE FROM THE FOLLOWING LIST THAT BEST MATCHED EACH STATEMENT BELOW 1. *TRUE OF ONLY FERNS* 2. *TRUE OF ONLY MOSSES * 3. *TRUE FOR BOTH MOSSES AND FERNS * * * Classified as nonvascular plants ________ Classified as vascular plants ________ Belong to kingdom p ...continues
