Which organelle is responsible for controlling what enters and leaves the cell?
Cell membrane
100
What is another word for producer?
Autotroph
100
How much energy is passed to the next trophic level?
10%
100
Which phase shows the chromosomes lining up at the center of the cell?
Metaphase
100
How many cells are made at the end of cytokinesis?
2
200
The type of transport that moves water is called?
Osmosis
200
Organisms who eat and breakdown dead and decaying material are called?
Decomposers
200
What organism is always at the bottom of an energy pyramid?
Producers
200
Name the 3 parts of interphase in order.
G1, S, and G2
200
Which phase shows the chromosomes being pulled apart into chromatids?
Anaphase
300
What type of transport needs energy and moves materials from areas of low concentration to high concentration??
Active transport
300
What is the unit of measurement that calculates the amount of energy in food?
Calories or kcal
300
What are the three types of ecological pyramids?
Energy, biomass, and numbers pyramid
300
What is a stem cell?
A cell that has no specific function yet but can change into different types of cells.
300
What is the first phase of mitosis?
Prophase
400
What happens to a cell if it is placed in a hypotonic solution?
It will enlarge or even burst.
400
A hawk eats a snake, the snake eats a frog, a frog eats an insect, and the insect eats plants. The insects are in what trophic level?
Primary consumer
400
Why is only a small amount of energy passed to the next trophic level?
The rest of the energy is used by the organism for its daily activities.
400
What structure moves the chromatids during mitosis?
Spindle fibers
400
What structure controls the spindle fibers?
Centrioles
500
After leaving an animal cell in a solution, a scientist observes that the size has not changed. What type of solution was the cell placed in?
An isotonic solution
500
What do the arrows in a food web represent?
energy flow. It represents where energy goes to next.
500
How much energy is in the primary consumer if the tertiary consumer has 70 kcal of energy?
7000 kcal
500
Name the phases of the cell cycle in order.
Interphase, prophase, metaphase, anaphase, telophase, and cytokinesis
500
What is the difference between embryonic and adult stem cells?
Embryonic stem cells are stem cells that can change into any cell in the body. Adult stem cells are stem cells that limited to what they can turn into.