WorksheetsHomeostasis Assessment Study Guide #1
Total questions: 19
Worksheet time: 13mins
What is a keystone species?
A species that is very important for an ecosystem, and without it, could spawn issues for the ecosystem
A species that comes from Keystone National Park
A species that can often cause imbalances in the ecosystem, by eating too much prey, etc.
A species that can comfortably maintain homeostasis, i.e. won't be severely impacted by a lack of food
What is natural selection?
The removal of certain species in an ecosystem to better suit the overall homeostasis of the ecosystem
A species evolves based on its observations and decides to make improvements for future generations
Choosing to eat natural rather than artificial foods
A species evolves and changes its characteristics to better survive in its surroundings over time
The likelihood of being selected is called
(a)
Something that an animal has to help it adapt to its environment is called a(n)
(a)
The physical differences between organisms in a species is called a(n)
(a)
The pH scale is a _______ graph.
Linear
Logarithmic
Quadratic
Exponential
Acidic solutions have a pH _________ 7
greater than
less than
about equal to
Basic solutions have a pH _________ 7
greater than
less than
about equal to
Water has a pH _________ 7
greater than
less than
about equal to
a pH 5 solution is (a) times as acidic as a pH 6 solution.
What is a buffer?
A substance that decreases the pH of a solution.
A substance that keeps the pH at a certain level permanently until removed.
A substance that keeps the pH at a certain level temporarily.
A substance that increases the pH of a solution.
What are characteristics of an ectotherm
Warm-blooded
Cold-blooded
Maintains internal body temperature
Body temperature depends on surroundings
What are characteristics of an endotherm
Warm-blooded
Cold-blooded
Maintains internal body temperature
Body temperature depends on surroundings
Vasoconstriction is when
Your blood vessels expand
Your blood vessels contract
Your blood vessels burst
You become a blood vessel
Vasolidation is when
Your blood vessels expand
Your blood vessels contract
Your blood vessels burst
You become a blood vessel
Where does vasoconstriction often occur first
Brain
Heart
Hands
Ears
Nose
Where does vasolidation often occur first
Brain
Heart
Hands
Ears
Nose
Where is myoglobin in the body?
muscle cells
blood cells
brain cells
liver cells
Where is hemoglobin in the body?
muscle cells
blood cells
brain cells
liver cells
