Biomes
Provide an example of a biotic factor and an abiotic factor.
Abiotic - anything nonliving
In a food web, where does all energy start, or come from?
Sun
Provide an example of an environmental indicator a scientist may track to see if an area is sustainable.
Water quality, air quality, biodiversity
Define codon.
3 mRNA nucleotides
Define an independent variable.
The variable that is being manipulated.
Name 2 abiotic factors that define a biome.
Precipitation and temperature
Describe the difference between a food chain and a food web.
Food chain - shows one pathway of feeding relationships through the trophic layers.
Food web - multiple food chains put together.
Define Chargaff's rule.
A pairs with T. C pairs with G.
Where does transcription take place?
Nucleus
When graphing, which axis does the independent variable and dependent variable go on?
Independent Variable - x axis
Dependent Variable - y axis
This biome has cold winters, warm summers, mild spring and fall, small to moderate precipitation. Grass, small shrubs, bison, prairie dogs, and wolves can be found here.
Grassland
In the food web shown, list the various trophic levels the aquatic insects belong to.
Primary and Secondary consumer
Provide 2 similarities and 2 differences between DNA and RNA.
Similarities - A, C, G, phosphate, sugar
Differences - single vs double strand, ribose sugar vs deoxyribose sugar, T vs U
Using the codon chart, provide the amino acids based on the following DNA strand: CAGTAT
DNA: CAGTAT
RNA: GUC AUA
Amino acids: Val - ILE
A scientist wants to test the amount of E. coli bacteria present on multiple surfaces. He will choose 5 different surfaces and collect bacteria on each surface by using a cotton swab to wipe an area for 5 minutes. What would be an appropriate research question for this investigation?
Question should be open-ended, include the independent variable, dependent variable, and the specific name of the organism.
This biome has mild summers, and very cold, snowy winters. There is small to moderate amounts of precipitation. This biome can be found in northern Canada. Examples of organisms are evergreen trees, caribou, and moose.
Taiga
Describe the difference between an organism, population, community, and ecosystem.
Organism - a single, individual living thing.
Population - a group of individuals of the same species living together in the same place at the same time.
Community - Populations of different species living together in the same area.
Ecosystem - Community plus the abiotic factors.
Draw the template strand of DNA with Adenine and Cytosine as the nitrogenous bases along with the complimentary DNA strand.
Drawing includes: deoxyribose sugar, phosphate, adenine paired with thymine, cytosine paired with guanine, the complimentary strand is shown antiparallel.
What is the function for each type of protein: immune system and motor?
Immune system - binds to and inactivates foreign substances
Motor - enables movement in cells and tissues.
A scientist wants to test the amount of E. coli bacteria present on multiple surfaces. He will choose 5 different surfaces and collect bacteria on each surface by using a cotton swab to wipe an area for 5 minutes. Based on this information, what could be 3 control variables?
Length of time to collect bacteria. One cotton swab used to collect the bacteria. Same type of bacteria tested each time.
This biome has mild temperatures, rainy winters and hot, dry summers. This biome can be found in CA. Small shrubs, cacti, coyotes, and jack rabbits can be found here.
Chaparral
Give an example of a commensalism relationship.
Commensalism - one organism benefits and the other is not helped nor harmed.
Provide 2 economic indicators and 2 social indicators a scientist might track to see if an area is sustainable.
Economic - Stockholder profits, materials for production, jobs.
Social - Education, health, poverty, crime.
Provide an example of each type of protein: transport, enzyme and storage.
Transport - Hemoglobin, glucose transporter
Enzyme - Pepsin, DNA polymerase
Storage - Albumin, ferritin
A scientist wants to test the amount of E. coli bacteria present on multiple surfaces. He will choose 5 different surfaces and collect bacteria on each surface by using a cotton swab to wipe an area for 5 minutes. Based on this information, what type of graph would you create for the data collected and why?
A bar graph because surfaces are qualitative data.