Jesse is interested in testing whether virus X causes disease in tomato plants. Her experimental design is to infect tomato plants from the green house with virus X and monitor for disease symptoms after 3 days, 1 week and 2 weeks. As a control Jesse will also monitor the tomato plants in her home garden, which she did not infect with virus X, at 3 days, 1 week and 2 weeks. Is this an appropriate control sample for Jesse’s experiment? Why?

Question 1

Nitrogen and phosphorus cycles differ in what ways? (CHECK ALL THAT APPLY)

-Nitrogen cycle dependent on bacteria

-Nitrogen cycle has an atmospheric component

-Phosphorus cycle has no atmospheric component

-Phosphorus enters food webs mainly through primary producers

Question 2

In terrestrial habitats species richness is negatively correlated with primary productivity

True or False

Question 3

Evapotranspiration shows a positive relationship with aboveground net primary productivity This is because

A. Evapotranspiration is the amount of water that must be exchanged for CO2

B. Evapotranspiration is negatively correlated with the number of open stomata

C. Evapotranspiration Is another way of measuring precipitation and precipitation provides the moisture plants need to grow

D.Evapotranspiration Is positively correlated with the number of open stomata and open stomata allow the plant to take in more CO2

E.Evapotranspiration is the term for CO2 absorption by leaves and plants need CO2 to create the products of photosynthesis

Examples of climate/ geography drives natural selection in humans.

Photosynthesis Light Reactions – Why is this like a battery?

parts of the spinal cord significance( function and importance) in the body

1.1 What are the most important variables for controlling ion release rates in “SmartCap Technology”? (1 paragraph)

1.2 What are the essential factors that are important to gain good phosphoric acid etch that will lead to micromechanical retention of the sealant. (Mention 2 points)

What came first? Describe the two hypotheses on the emergence of agriculture. Which one is supported by the archaeological evidence?

Biochemistry:

The carbohydrates of mammalian tissues include     , while the carbohydrates of bacteria include     .

How do phagocytes eliminate pathogens? What group of pathogens are most easily phagocytosed and why?

In order to clone a DNA gene, it is inserted into a larger vector. Why should the vector used be larger?

LOUIS PASTEUR and ROBERT KOCH

Briefly describe the experiments that each person performed to demonstrate the relationship between the arthropod and the disease agent.

1. Brown algae have a stem, holdfast and blade. How does this compare to land plants?

2. Algae you examined were a variety of colors, yet all contain chlorophyll. How can this be?

3. What adaptations do algae have which allow them to be so successful in marine environments?

4. How are cyanobacteria different than algae? How are they similar?

a.) Why do cells divide or why do cells need to divide?

b.) The differences in cell division process(es) between prokaryotic and eukaryotic organisms.

Be sure to provide details of the differences in a logical manner.

1. What is the ultimate reason that a health professional or scientist would be looking to see if a bacterial infection was gram negative or gram positive? Explain your answer.

2. Why might an antibiotic work better for some bacteria species than others? Be specific.

3. What are nitrogen fixing bacteria? Hint: Describe them, where they are located, what they do, and why they are important ecologically.

4. Do Cyanobacteria have chloroplasts? Why or why not?