Tools of a Life Scientist/Cell Biology
Body Systems
Genetics
Ecology
Evolution/Cell Biology
100
What is the total magnification if the ocular lens is 10x and the scanning power objective lens is 10x?
100x
100
What are the building blocks of carbohydrates?
Sugars/Glucose
100
The Genetic Code contained in the nucleus is called what?
DNA
100
The first community to enter a new area is known as...
a pioneer community.
100
What is the function of the Mitochondria?
Changing glucose into useable energy through cellular respiration. Also called the "mighty" mitochondria and "powerhouse of the cell"
200
What is adaptation?
A trait that helps an organism survive and reproduce.
200
What is homeostasis?
A tendency towards a relatively stable state of equilibrium (balance) in the body.
200
An organism is split in two by a lawn mower and grows into two identical versions of that organism. What kind of reproduction and what kind of cell division is responsible?
Asexual reproduction/mitosis
200
Which organism is the Producer in this ecosystem?
The phytoplankton
200
If something is Semi-Permeable, what does that mean?
Small molecules can pass through and large molecules can't.
300
What is the size of the specimen shown?
~2 mm
300
What is the main function of white blood cells?
To fight infection and disease.
300
What two organisms are most closely related to Tuatara?
Snakes and Lizards
300
Sharks are often used by smaller fish as a "vehicle" for them to hitch a ride on. During this relationship, the shark remains unaffected while the fish is being helped. What type of symbiosis is described?
Commensalism
300
Describe an example of natural seleciton.
answers will vary
400
Use the graph below to answer the following question.
What graphing relationship is shown in the graph?
Direct relationship.
400
What is the difference between Mechanical and Chemical digestion?
Mechanical digestion - food is broken down into smaller pieces by physical actions.
Chemical digestion - food is broken down by chemical reactions.
400
What is one disadvantage of asexual reproduction?
The lack of variation makes the population vulnerable to environmental change like disease.
400
Identify one role decomposers play in the cycling of matter.
Nitrogen Cycle: Decomposers move nitrogen from dead organisms to the soil and air
Carbon cycle: Decomposers return carbon dioxide to the atmosphere
400
What type of molecules can pass through the lipid layer of the cell membrane and give TWO examples.
Small molecules: Oxygen, water, carbon dioxide
500
Use the graph below to answer the following question.
What is the change in temperature from 10AM to 4PM? (Show Work and Units)
16-4= 12 degrees Celcius
500
What are the two main functions of the small intestine?
To chemically digest food and absorb most nutrients.
500
If a brown guinea pig (BB) is bred with a white guinea pig (bb), what percent of their offspring will be white?
0%
500
What are the Reactants and Products of photosynthesis?
Reactants: Carbon dioxide, water, sunlight
Products: Oxygen, glucose
(COWS --> GO)
500
Draw a diagram showing how the greenhouse effect works in nature. You must include the following, the energy involved with proper wavelength and labels for each type of energy. Also, a brief explanation of how it works.
