7.1-72. Intro to Natural Selection
1.1 Water
1.2-1.3 Elements + Macromolecules
1.4-1.7 Carbs, Lipids, Proteins, Nucleic Acids
Experimental Design
100

What is the best definition of "fitness"?

What is "how well living things survive AND reproduce"?
100

What part of the structure of water allows for its special properties (i.e. surface tension, evaporative cooling, etc.)?

What is "polarity"?

100

What elements do ALL macromolecules have?

What are "Carbon, hydrogen and oxygen"?

100

What function do carbohydrates and lipids have in common?

What is "they are both used for energy"?

100

The variable that I purposely change/manipulate

What is the "independent variable"?

200

Mice have different fur coat colors. What is this an example of?

What is "Phenotypic variation"?

200

Humans produce sweat as a cooling mechanism to maintain a stable internal temperature. 

Which property of water contributes to this physiological process? 

What is "Evaporative Cooling" or "High heat of Vaporization"?
200

Which macromolecule contains Sulfur?

What are "proteins"?

200

What is the function of a nucleic acid?

What is "storing genetic information"?

200

What is the variable that I measure/collect data on?

What is the "Dependent Variable"?

300

A group of tan and black rock pocket mice migrate to an area that is covered in black volcanic rock. What will happen to them immediately?

What is "The tan will be more easily spotted by predators"?

300

The property of water that allows water bugs to stand on top of the water AND water not to overflow a cup?

What is "surface tension"?

300

What two macromolecules contain nitrogen?

What are "proteins + nucleic acids"?

300

If I were to give a drug that prohibited the formation of hydrogen bonds, what level of protein structure would most likely be affected?

What is "Secondary structure"?

300

What are the 5 requirements for a graph? (Hint: TALKS)

What is "Title, Axis, Labels, Key & Scale"?

400

A group of mostly tan and a few black rock pocket mice migrate to an area that is covered in black volcanic rock. What will the population look a few years after moving to the area?

What is "They will be mostly black"?

400

Water likes to stick to other water molecules. This is called...?

What is "cohesion"?

400

Which TWO macromolecules contain phosphorous?

What are "Nucleic Acids and Lipids (Phospholipids)"?
400

What part of the amino acid gives each one it's unique properties?

What is the "R Group"?

400

To investigate variation in stem trichome density within the plant species, a student counted the number of trichomes on the stems of six plants in each of three different populations.  The student used the data to calculate the mean trichome density (numbers of hairs per square centimeter) for each population.  

What type of graph should they draw based on this experiment?

What is a "bar graph"?

500

A group of tan and black rock pocket mice migrate to an area that is covered in black volcanic rock. 

Who/what will determine how fit the mice are? (Hint: who will decide who lives and dies?)

What is "the predator"?

500

What causes water to be polar?

What is "the difference in electronegativity between oxygen (very high) and hydrogen (very low)"?

500

In _____________ macromolecules are broken down using water, while in _____________ they are built by removing water.

What is "hydrolysis", "dehydration synthesis" IN THE CORRECT ORDER?

500

If 30% of the nucleotides in a single-stranded molecule are adenine, then what percent are expected to be cytosine?

What is "20%"?

500

Given a bar graph, how do you determine if the data is statistically significant?

What is the "SEM +/-2 Error Bars"?