Based on this graph, what statement is true?
b. the birth rate was greater than the death rate
c. the birth and death rate were equal
b. the birth rate was greater than the death rate
How many chromosomes are in a human?
a. 23
b. 46
c. 96
b. 46
What is Mrs. Mares' first name?
a. Amy
b. Jamie
c. Aimee
c. Aimee
A climax community is a full ecosystem with a complete food-chain.
a. True b. False
a. true
What is a keystone species?
a. a stone animal that lives in a pond
b. the top predator in a habitat
c. an animal that breeds with many other animals
b. the top predator in a habitat
Goats often graze and eat grass. If there are too many goats in the area, what could happen?
a. There would be more predators
b. Populations of cows and horses would increase
c. The grass population would decrease
c. The grass population would decrease
What is mitosis?
a. our cells can grow in size
b. our cells divide to create two identical cells
c. cells are programmed to die
b. our cells divide to create two identical cells
What does Mrs. Mares drink every morning?
If an ecosystem is resilient, it can...
a. recover after a disaster
b. fight change and stay the same
c. die off quickly
a. recover after a disaster
What would happen if the top predator in an environment was removed?
a. Biodiversity would increase
b. Biodiversity would decrease
c. No changes to biodiversity
b. Biodiversity would decrease
Based on this graph, what statement is true?

a. the population grew exponentially
b. the population grew at a constant rate
c. the population has reached carrying capacity
a. the population grew exponentially
Why does DNA replication have to happen before mitosis?
a. each new cell needs different DNA
b. DNA replication can happen at any time
c. each new cell needs a complete set of DNA
c. each new cell needs a complete set of DNA
Name at least 3 animals that Mrs. Mares has.
Cats, frogs, gecko, spider, snake
If an ecosystem is resistant, it can...
a. recover quickly after a disturbance
b. fight change
c. die off quickly
b. fight change
Which would NOT cause a change to biodiversity in an ecosystem?
a. clearing out land for construction
b. measuring the size of a population
c. removing a species
b. measuring the size of a population
Over a 16 year period, four populations were studied after a fire. Which population stayed the most stable during the disturbance?

Population 2
Which picture shows a correct image of cells in mitosis and their number of chromosomes?

A
Where is Mrs. Mares from?
a. Phoenix, Arizona
b. Austin, Texas
c. Hershey, Pennsylvania
c. Hershey, Pennsylvania
An ecosystem can recover after a disaster through ecological succession.
a. True b. False
a. True
A tornado wipes out a forest, killing half of the plants and animals. What is the immediate result?
a. an increase of biodiveristy
b. a decrease in biodiversity
c. secondary succession
b. a decrease in biodiversity
In a large forest with many animals, there is a small number of deer. What most likely limits the population of deer?
Must mention resources, competition, or predators.
Why is mitosis important?
So that we can have new cells for growth and replacement
Why does Mrs. Mares like being a teacher?
because you all are the best.
Put these images in order to show how an ecosystem would recover after a volcano.

C, D, A, B
Describe BIODIVERSITY.
An environment with a lot of different animals and plants, many different living things.