WorksheetsUnit 4 Test: Species & Populations
Total questions: 22
Worksheet time: 12mins
Name
Class
Date
1.
What is your first and last name WRITTEN CORRECTLY?
4 lines
2.
1. If the gene pool of two populations are separated, the populations may develop into a new species. This is called:
a)
natural selection
b)
speciation
c)
genetic seperation
d)
interspecific competition
3.
2. What type of population growth is shown in part A of this graph?
a)
Logistic growth
b)
Exponential growth
c)
Linear growth
d)
Arithmetic growth
4.
3. What is represented by the horizontal dotted line at the top of the graph?
a)
A density-dependent factor
b)
A J curve
c)
The maximum number of individuals the environment can hold
d)
The carrying capacity
5.
5. The type of survivorship curve that shows high fertility rates and early mortality is
a)
Type 1
b)
Type 2
c)
Type 3
6.
6. The type of survivorship curve you might expect for blue whales would be
a)
Type 1
b)
Type 2
c)
Type 3
7.
7. Which of the following are typical characteristics of a k strategist? Choose 3 characteristics!
a)
few offspring produced
b)
long life expectancy
c)
high energy cost per offspring
d)
low levels of parental care
e)
type 3 survivorship curve
8.
8. When a population passes its carrying capacity, which of the following will likely happen?
a)
natality rates will increase
b)
competition will decrease
c)
mortality rates will increase
d)
a population can not pass its carrying capacity
9.
9. In the population pyramid diagram below, which of the following is true of this population? Choose 2!!
a)
It is declining.
b)
It is expanding.
c)
It is stable.
d)
It is from a developing country.
e)
It is from a developed country.
10.
10. The Kaibab squirrel became its own species when a small population was isolated on the northern rim of the Grand Canyon. Which type of speciation is this?
a)
behavioral isolation
b)
mechanical isolation
c)
temporal isloation
d)
geographic isolation
11.
11. 20 different species of galagos, also known as bush-babies, are found in Africa. Even though various species of galagos share habitats, they cannot interbreed with one another because of their differently structured genitalia. Which type of speciation is this?
a)
behavioral isolation
b)
mechanical isolation
c)
temporal isloation
d)
geographic isolation
12.
12. An ecologist is discussing two animals’ ability to reproduce with one another. Which is he talking about?
a)
natality
b)
fecundity
c)
fertility
d)
mortality
13.
13. Which is NOT true about animal species?
a)
animals of the same species can interbreed and reproduce
b)
endangered species are in immediate jeopardy of extinction
c)
zero (none) species have been protected through trade restrictions
14.
14. Which type of strategists would you expect to have low levels of prenatal care and a short life expectancy?
a)
K strategists
b)
R strategists
15.
15. Long life expectancy usually correlates with all the following, EXCEPT:
a)
higher levels of prenatal care
b)
larger animals
c)
type 1 and type 2 survivorship curve
d)
rapid reproduction
16.
16. Which of the following is NOT a density-dependent factor?
a)
storms
b)
disease
c)
competition
d)
predators
17.
17. Over-exploitation of animals is likely to cause:
a)
speciation
b)
species extinction
c)
interspecific competition
d)
behavioral isolation
18.
24. The Endangered Species Act of 1973 did which of the following?
a)
restricted trade on threatened and endangered species
b)
protected critical habitats from destruction
c)
All of the above
19.
25. There are between five and thirty million species on Earth.
a)
True
b)
False
20.
Tracks organisms that tend to live long lives (low death rate and high survivorship rate); toward the end of their life expectancies, however, there is a dramatic increase in the death rate.
a)
Type I
b)
Type II
c)
Type III
d)
Type IV
21.
Refer to the diagram of the survivorship curve.
Which curve best describes an organism that invests a lot of energy in parenting?
Which curve best describes an organism that invests a lot of energy in parenting?
a)
A
b)
B
c)
C
d)
this is not a survivorship curve
22.
On a beach in Hawaii, you observe a hatching of sea turtles. Hundreds of baby turtles climb out of nests in the sand and flop towards the sea. As they cross the beach, dozens are caught by predators and eaten. Which type of survivorship curve do you think the sea turtles display?
a)
Type I
b)
Type II
c)
Type III
d)
Type IV
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