Rotation 1: Cells & Levels of Organization (Big Idea 14)
Question 1
A feature shared by all organisms is that
they are made up of one or more cells.
Cell A
The cell theory states

all organisms are composed of cells
(single-celled or multi-cellular),

all cells come from pre-existing
cells, and

cells are the basic unit of life.
There are two main kinds of cells
prokaryotic cells and eukaryotic cells.
Prokaryotic cells
Eukaryotic cells
Cell B
Single cell organisms
tiny cells
Multi cellular
organisms
membranes surround
the organelles
Relatively large cells
Circular DNA
DNA in chromosomes
Bacteria
Animals, plants, fungi
No organelles
Organelle
nucleus
Cell C
ribosomes
mitochondria
cell membrane
cell wall
vacuole
endoplasmic
reticulum
chloroplast
cytoplasm
Description
control center of the cell; contains
DNA which has information for
making protein; "Brain" of the cell
produces proteins
powerhouse of the cell; provides
energy for cellular respiration
thin, flexible barrier around a cell;
controls what enters/leaves the cell
supports and protects the cell; found
only plant cells
stores water and other materials.
network of canals used to transport
and store substances; a pathway
between nucleus and cell membrane
captures sunlight for photosynthesis
a jellylike fluid inside the cell in
which the organelles are suspended
Question 2
Question 3
Word Bank
nucleus
cell wall
chloroplast
ribosomes
Golgi bodies
cytoplasm
mitochondria
vacuole
cell membrane
endoplasmic reticulum
Rotation 2: Body Systems and Infectious Agents (Big Idea 14)
Question 1 Read the descriptions below and write the organ system being described on your answer sheet.
A. This body system is made of glands that secrete hormones. Hormones are chemical messengers that tell other body
organs what to do. Some organs included in this system are the pancreas, adrenal glands, pituitary gland, and the
thyroid.
B. This body system functions to circulate blood throughout the body. The blood carries oxygen, nutrients, and
hormones to the cells and picks up waste products. Some of the organs included in this body system are the heart,
veins, and arteries.
C. This body system functions to transmit information from the brain to the cells or from the cells to the brain. Some of
the organs included are the brain, spinal cord, and peripheral nerves.
D. This body system functions to break down food and drinks into nutrients and waste products. Some of the organs
included in this system are the mouth (where enzymes start the process), the small intestine (where most of nutrients
are absorbed) and the stomach.
E. This body system functions to filter blood and remove the waste. It also helps to regulate blood pressure and some
hormones. Some of the organs included in this system are the kidneys, ureters and urinary bladder.
Characteristics of Life
Organization. Many organisms are multicellular; others consist of a single cell. In multicellular organisms, the
cells are organized into groups with specialized functions.
Growth and Development. All organisms grow and develop. A multicellular organism grows as its cells increase
in number. A unicellular organism grows as its single cell gets larger.
Reproduction. In order for a species to survive, the members of that species must reproduce. Organisms have
different ways of reproducing.
Responses to Stimuli. All living things respond to stimuli. A stimulus can be internal, such as the feeling of
hunger, or from the external environment, such as temperature, light or gravity.
Homeostasis. To thrive, an organism must maintain homeostasis, or a stable internal environment, in response
to changes in the external environment. An organism achieves homeostasis in various ways. For example, if a
person gets too hot, the person’s body responds with sweating.
Energy. Everything an organism does requires energy. The ultimate source of energy for almost all organisms is
the Sun. Plants use sunlight to make food. Animals obtain energy by eating plants or other animals.
Types of Diseases
Infectious
Noninfectious
Disease
Pathogen
cancer
cold
virus
diabetes
herpes
virus
heart disease
strep throat
bacteria
osteoporosis
leprosy
bacteria
asthma
A virus is a strand of DNA or RNA
surrounded by a layer of protein that can
infect and replicate in a host cell. A virus
does not have a cell wall, a nucleus, or any
other organelles. Viruses can infect all
types of organisms, from animals and
plants to bacteria. Scientists do not
consider viruses to be alive.
Rotation 3: Classification, Dichotomous Keys, Fossil Evidence of Evolution, Law of Superposition
Questions 1 & 2
The following dichotomous key can be used to identify the order of the unknown shark that is pictured.
Question 3
Rotation 4: Sexual vs. Asexual Reproduction, Mitosis vs. Meiosis, Punnett Squares and Pedigrees
Question 2
Use the dry erase boards to do the crosses for Number 3 and 4 then write the ratios on the answer sheet.
Question 3 Cross a heterozygous brown cat (Bb) with a homozygous white cat (bb).
Question 4 Cross a homozygous short tailed rabbit (TT) with a homozygous long tailed rabbit (tt).
Question 5
Assume that shaded individuals have the alleles gg. Which of these statements is true about the alleles of individual 2 in
generation II?
A. Individual II-2 must have the alleles GG.
B. Individual II-2 must have the alleles Gg.
C.
Individual II-2 must have the alleles gg.
D. Individual II-2 could have either the alleles Gg or the alleles gg.
Rotation 5: DNA base pairing, gene-DNA-chromosome relationship, adaptations and diversity (Big Ideas 15 & 16)
Rotation 6: Interdependence – food web, food chain, trophic levels and energy transfer (Big Idea 17)
Question 1
Questions 2 & 3 The food web below shows some of the feeding relationships among organisms in Arctic waters. A
change in the population of one organism can affect the entire food web.
3A Based on the information in the food web, which organism would be least affected by overfishing for cod?
A. seals
B. shrimp
C. baleen whales
D. toothed whales
3B A catastrophic oil spill happens in this area and all of the phytoplankton are killed off. How will this event
affect the other organisms in the food web?
A. every organism except the polar bear will be negatively affected.
B. all the organisms in the food web will be negatively affected
C. only the krill and shrimp will be affected
D. no organisms will be affected
Name___________________________________________________________ Date ________________Period______
SCIENCE REVIEW STATIONS
Rotation 1: Cells and Levels of Organization (Big Idea 14)
1. Look at the pictures on the laminated sheets. What type of cell is this?
A._____________________________
B._____________________________
C._____________________________
2. What are two things that plant cells have that animal cells do not have?
___________________________________ and _______________________________
What are five things that plant and animal cells have in common?
___________________, ___________________,___________________,___________________,___________________.
3. Match the organelle with the function.
A. The powerhouse of the cell where energy is made: _______________________.
B. The organelle responsible for making proteins: ______________________.
C. The DNA in a eukaryotic cell is found in the “brain”: _______________________.
D. The area of the cell that regulates what enters/exits: ___________________.
4. What are the three parts of the cell theory?
A. All organisms are composed of _____________.
B. All cells come from ______________________________.
C. _____________ are the basic unit of life.
5. Put the following in hierarchical levels of organization in order from LEAST complex to MOST complex.
____organ system
____ organ
___cell
____ tissue
____atom
____molecule
_____organism
Rotation 2: Body Systems and Infectious Agents (Big Idea 14)
1. What body system is each paragraph describing? (See explanations)
A._____________________________
D._____________________________
B._____________________________
E._____________________________
C._____________________________
2. What does the term homeostasis mean?
3. Explain how two body systems work together to help maintain homeostasis in your body. Give two specific
examples.
4. What is the difference between an infectious and a noninfectious disease?
5. How are viruses different from bacteria?
Rotation 3: Classification, Dichotomous Keys, Fossil Evidence of Evolution & Law of Superposition (Big Idea 15)
1. What does a dichotomous key show? (See picture)
Why are they useful?
Using the key, identify the type of shark in the picture.
2. Which organism is the most closely related to Lamniformes?
3. Based on the Law of Superposition, which fossil in the picture is the oldest?
4. Answer the 10 questions in the basic tree thinking assessment on the answer sheet.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Rotation 4: Sexual vs. Asexual Reproduction, Mitosis vs. Meiosis, Punnett squares /Pedigrees
1. What are the main advantages and disadvantages of Sexual vs. Asexual reproduction?
Sexual Reproduction
Advantages
Disadvantages
Asexual Reproduction
Advantages
Disadvantages
2. Compare and contrast the processes of mitosis and meiosis.
Complete the Punnett squares and explain the probability of the genotypes and phenotypes of the offspring.
3. Genotypes of offspring: _________________________ phenotypes: _________________________
4. Genotypes of offspring: _________________________ phenotypes: _________________________
5. Answer the pedigree question. ________________
Rotation 5: DNA base pairing, gene-DNA-chromosome relationship, adaptations and diversity (Big Ideas 15 & 16)
1. What is DNA?
2. Explain how nitrogen bases pair.
Make the complementary strand of DNA for T-A-G-G-C-T-T. _____ _____ _____ _____ _____ _____ _____
3. How do slight variations in DNA sequences help a species survive in a changing environment?
4. What is the difference between a variation and an adaptation?
Name___________________________________________________________ Date ________________Period______
Rotation 6: Interdependence – food web, food chain, trophic levels and energy transfer (Big Idea 17)
1. Explain what happens in a food chain. (See picture)
What two things are missing from this picture? __________________ and ______________________
2. What do the arrows mean in the food web? (See picture)
3. Read the two food web analysis questions and answer. (See picture)
A. ________________________
B._______________________
4. Differentiate between the terms parasitism, mutualism, and commensalism.
5. Why does the available energy decrease as you go towards the top of the trophic level pyramid?
Name___________________________________________________________ Date ________________Period______
Rotation 6: Interdependence – food web, food chain, trophic levels and energy transfer (Big Idea 17)
1. Explain what happens in a food chain. (See picture)
What two things are missing from this picture? __________________ and ______________________
2. What do the arrows mean in the food web? (See picture)
3. Read the two food web analysis questions and answer. (See picture)
A. ________________________
B._______________________
4. Differentiate between the terms parasitism, mutualism, and commensalism.
5. Why does the available energy decrease as you go towards the top of the trophic level pyramid?