Show:
Ecology
Experimental Design
Populations
Symbiotic Relationships
Cells
100
What is a niche?
What an organism eats or its "job".
100
What is a hypothesis?
An educated guess.
100
What is the carrying capacity of a population?
The maximum number of individuals a population can hold.
100
What symbiotic relationship is a tapeworm an example of?
Parasitism
100
What organelle is covered by a double membrane, contains the cell's DNA, and controls the cell processes?
The nucleus
200
What organisms are at the top of the energy pyramid?
Top Carnivores
200
What is the independent variable in an experiment?
The variable that is purposefully changed.
200
How do organisms compete in nature?
For food, shelter, and water
200
What is mutualism?
A relationship where both species benefit.
200
How is a eukaryote different from a prokaryote?
A eukaryote has a nucleus and membrane-bound organelles.
300
How does a coyote rely on vegetation in its ecosystem?
A coyote eats plant eaters who eat vegetation.
300
What is the dependent variable in an experiment?
The variable that is measured or tested for.
300
You are growing a bacteria population in a dish. What will happen to the population if no new nutrients are added?
The population will decrease.
300
What is commensalism?
A relationship where one species benefits and the other is neither helped nor harmed.
300
How are cell walls different from cell membranes?
Cell walls are more rigid and provide support.
400
Which way do the arrows point in a food web?
They follow the path of energy. They point from the food to who is eating it.
400
What is a control group?
A group that does not receive treatment.
400
Birds eat seeds. During dry years plants produce large, tough seeds. During those years, which birds are more likely to survive?
The birds with the larger beaks.
400
What is a predator/prey relationship?
One organism hunts and kills the other for food.
400
A cell membrane is semi-permeable. What does this mean?
Some substances are allowed in and out, others are not. The cell gets to "select".
500
A deer population suddenly increases over ten years. What are three possible explanations for this?
A decrease in predators, a larger food supply, a new food source
500
How many variables should be tested at one time in an experiment?
One
500
Most of the grass in an area grows to be 4ft. The other 20% grows to be 6ft. If there is an increase in trees growing in the area, how will the grasses be affected?
The taller grass will population will have to compete with the trees for sunlight. The shorter grasses will decrease.
500
If a pilot fish eats parasites off a shark, while gaining protection from predators, what kind of symbiotic relationship is this?
Mutualism
500
What organelle processes and packages proteins?
The golgi apparatus (also known as golgi complex)