What is the smallest unit of life?
Cell
True or False: plants and animal cells both have cell walls and cell membranes.
False.
What structure do plant cells have that animals cells do not?
Cell wall
What organisms directly eat the producers?
Primary Consumers
A relationship where both organisms benefit.
Mutualism
What do we call a body made of only one cell?
Unicellular
This part of the cell controls all activities and contains the DNA.
Nucleus
Why don't animal cells have chloroplast?
They don't perform photosynthesis.
What is the role of a producer in a food chain?
To make or provide energy for all organisms in the food web.
A relationship where one organism benefits and the other is not harmed (no positive or negative).
Commensalism
What is the jelly-like substance that fills the inside of the cell?
Cytoplasm
This structure surrounds the cell and controls what goes in and out and can be semi-permeable.
Cell membrane
Why type of cell has one large vacuole?
Plant cell
Which organism returns nutrients back into the soil?
Decomposers
The relationship when a parasite benefits but the host is harmed.
Parasitism
This is known as the power house of the cell that makes energy.
Mitochondria
This organelle is responsible for breaking down waste and consuming bacteria
Lysosomes
True or False: Both plant cells and animal cells have mitochondria.
True.
When a prey species is removed, why do the predators experience a decrease in populations?
They experience a lack of food.
Giraffes have microorganisms on their skin that can cause their skin to negatively react. Some birds land on giraffes in the wild and eat the microorganisms for energy. What kind of relationship is this?
A. Predator-Prey
B. Symbiotic
B. Symbiotic
What is the difference between structure and function in a cell?
Structure is how it is made, Function is what it does.
Which household items would best represent the cell membrane?
A. Game controller remote
B. Bookbag
C. Fishing net
D. Solar Panel
C. Fishing net
Name two structural difference that plant cells have that animal cells do not.
Cell wall and chloroplast.
Why is energy not recycled in a ecosystem like matter?
Energy flows in one direction, entering a sunlight and exiting as heat.
Explain why competition has a negative affect.
Competition leads to only one organism having a higher survival and reproduction rate, if the other organism is absent.