SC49 Fall Semester CRT Review Guide




Independent Variable

Dependant Variable


Pure Science

Applied Science

Quantitative data

Qualitative data






Primary consumer:

Secondary consumer:

Tertiary consumer: define and ….and can eat from which trophic level?

Decomposer: Define and list examples

Autotroph: Define and list examples

Heterotroph: Define and list examples

Biotic: Define and list examples


Primary succession:

Pioneer Species:

Secondary succession:


Natural Selection:








Cell/Plasma Membrane:

Cell Wall:


Draw a food chain.

Use your food chain to draw a food web.

What are the producers in your food web?

What are the primary consumers in your food web?

What are the secondary and tertiary consumers in your food web?


Draw and label a picture that shows primary succession.





Identify whether each statement is quantitative data or qualitative data.

The milk in the coffee is frothy.

The cup holds 24oz of coffee.

The coffee is body temperature.

The coffee has a rich aroma.

The coffee is brown.

The cup holds 3 servings of coffee.


Which of the following are appropriate ways for scientists to share their research with other scientists?

Research posters



Chat rooms


Scientific Journal Articles

Television Interviews

Peer Reviewed Journals

Press conferences



Identify the following as examples of pure or applied science:

Discovering a molecule that causes cancer

Developing a medicine to target a cancer causing molecule

Researching the function of enzymes

Discovering the structure of DNA

Using Jellyfish DNA to genetically engineer a bacterial cell

Isolating DNA from Jellyfish

Getting your throat swabbed by the doctor.

Doctor prescribes an antibiotic based on the results of your blood test.



From Chapter 1 Prentice Hall :Description: Prairie Life Image.bmp

Color the biotic factors green, color the abiotic factors red, circle an organism that is a predator, and put a box around an organism that is prey.



Label the trophic levels of the pyramid below.

Place each organism in the appropriate trophic level(s) in the pyramid below:

Bear, Ponderosa pine tree, Deer, Rabbit, Mountain lion, Wolf, Grass, Hawk

How does the energy change as you go up the pyramid?

How does population size change as you go up the pyramid?















After a forest fire, the forest slowly recovers as various organisms grow back.  Place the following stages of growth in the correct order.


Using a t-chart, list the pros and cons of a wildfire.





In the national park, several key strategies are used to protect the forest.

Seedlings or seeds are dispersed by the rangers after a fire: ______________________________

Areas of smaller brush and younger trees are periodically removed: ______________________

List situations that would lead to ecological succession: ___________________ 


Draw a typical prokaryote cell and label the typical parts.

Compare and contrast prokaryotic cells and eukaryotic cells using a Venn diagram.

Complete a Venn diagram for a Plant and Animal Cell


List the four social factors that influence human populations:_____________________, _____________________, _____________________, and _____________________ .

Sketch and label a graph of the human population


Sketch and label a graph of other, non-human populations


Explain the shape of the two graphs.


Explain the factors that affect population growth rate (birth death immigration emigration)


Why is it important that all variables other than the independent variable are controlled in an experiment?


Why do scientists conduct experiments?


Underline the IV and circle the DV:

If plants are given different amounts of water, then their heights will be different after 6 weeks.

Bacteria are grown in different types of nutrient agar, and some types of agar allow more bacterial growth than others.

The number of holes in students’ jeans affects their number of trips to detentions.

Does the frequency of sneezing affect the rates of infection?

Does the proximity of bacterial colonies affect the number of colonies that will grow in nutrient agar?

The amount of light in an area will affect the number of earthworms present.

The amount of hours studying affects your grades.

The number of snake eggs laid is affected by the amount of rainfall that is received.

The incubation temperature of a tortoise egg affects the sex of the hatchlings.


For the next few questions, use the following diagram:








Which is more closely related to the butterfly? The spider or the worm?


What do all the organisms after F have in common?


What do all the organisms after B have in Common?


Which 2 organisms would have the most similar DNA? The Fly and the Grasshopper or the Worm and the Spider?


 What 3 things would be used to classify these organisms?


 List and describe the 4 morphological features used to classify organisms.


Does classification always remain the same? Why or why not?


Natural selection is based on observations, List and describe the 5 observations:






Define natural selection:


What does natural selection cause in a population (on the genetic level)?


What is absolutely necessary for natural selection to take place?


Define adaptation:


What happens to organisms that are better suited to the environment when compared to organisms that are less well suited?


List and describe the 5 key pieces of evidence for evolution:







Description: Fossil Layers.bmp

 Image From

The diagram shows undisturbed sedimentary rock layers containing fossils.  Which statement best summarizes the history of the area?

The area was once a forest and was replaced by a freshwater lake.

The area was once a freshwater lake and was replaced by a saltwater sea.

The area was once a saltwater sea and replaced by a coniferous forest. 

The area was once a saltwater sea and later replaced by a forest.



There is an animation showing fossil layer formation here:





Fill in the missing levels of organization:

Determine the tyoe of graph needed for each situation:

150 fish were caught in a net.  Calculate the percentage of the total for each species, and graph the percent caught.  What kind of graph would be needed?

Plant heights were measured for 6 weeks.  What kind of graph would be needed?

A bacterial culture’s population was measured every 30 minutes for 18 hours.  What kind of graph would be needed?

You ask 200 people “What is your favorite type of movie?”  What type of graph would you make for these answers: Comedy-200 students,  Horror-75 students, Animated-115 students, Drama-48 students

You measure the shoe sizes of the students in your class and break them into the following categories:

5-6, 7-8, 9-10, 11-12, 13-14, 15-16


What kind of graph would you draw?