Question

Question 11
Question 12
A) “Green” material has high amounts of (1 point)
nitrogen.
magnesium.
carbon.
phosphorus.
A) The Kudzu vine was brought to the United States from Japan. Which of the following additional characteristics of the Kudzu
vine determined that it was an invasive species? (1 point)
it has no economic benefit
it was believed to be a "miracle plant"
it protects vulnerable grounds against wind erosion
it grows rapidly, robbing other plants of sunlight

Question 13
A) Why are invasive species such a huge threat to ecosystems? (1 point)
Invasive species can do intense damage, so much so that ecosystems may not be able to recover.
Invasive species provide no added benefit or diversity to the ecosystem.
Invasive species are impossible to control once they are introduced and spread rapidly.
Invasive species can replace native species, forcing their migration out of the area.

Question 14
A)
Imagine that an ecosystem contains rabbits, foxes, wolves, and deer. The following predator-prey relationships exist:
Rabbits are eaten by foxes and wolves
Deer are eaten by wolves
Foxes are eaten by wolves
Select the animal whose absence would have the greatest negative effect on the ecosystem.
(1 point)
rabbit
deer
fox
wolf

Question 15
Question 16
A) In an ecosystem with low biodiversity, the removal of a species will (1 point)
not affect the ecosystem because another species will take its place.
disturb the ecosystem because another species will not be able to replace it.
not affect the ecosystem because another species will not be able to replace it.
disturb the ecosystem because another species will take its place.
A) Biodiversity is measured by (1 point)
examining the usefulness of a specific trait in a species that interacts within an ecosystem.
counting the total number of one species population and how they interact within an ecosystem.
counting the number and variation of different species of plants, animals, and other organisms that interact within an ecosystem.
only analyzing animal species that interact within an ecosystem.

Question 17
Question 18
A)
If resources become rare, living things that cannot adapt must leave or die.
(1 point)
False
True
Organisms in an ecosystem depend on their with both living and factors for survival.
A) Drag and drop the words into the correct locations. (1 point)
 nonliving  physical  discussions  interactions

Question 19
A)
Organisms may compete for which of these limited resources?
(Select the three correct answers.)
(1 point)
Enough food
Clean water
New friends
Quiet spaces
Fresh oxygen

Question 20

A)
Which factors can limit the growth of populations in an ecosystem when resources become scarce?
(Select the three correct answers.)
(1 point)

Not enough clean water
A shortage of food
An increase in sunlight
Limited living areas

Answer 1

Q11: nitrogen

Q12: it grows rapidly, robbing other plants of sunlight

Q13: Invasive species can do intense damage, so much so that ecosystems may not be able to recover.

Q14: wolf

Q15: disturb the ecosystem because another species will not be able to replace it.

Q16: counting the number and variation of different species of plants, animals, and other organisms that interact within an ecosystem.

Q17: True

Q18: interactions; nonliving (Organisms depend on their interactions with both living and nonliving factors.)

Q19 (choose three): Enough food; Clean water; Fresh oxygen

Q20 (choose three): Not enough clean water; A shortage of food; Limited living areas