One species of Galapagos finches, the cactus finch, eats insects off cactus plants. A disease kills off most of the cacti in the Galapagos islands. Which of these most likely would happen to the carrying capacity of the island?
Ecology Quizs Review

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Science
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9th Grade
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Easy
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It would increase a small amount since the insect population would decrease
it would remain about the same since the finches would change to a different diet
it would increase exponentially since the insects would have limited places to hide.
it would decrease considerably since the finches are specifically adapted to their niche.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Orchids grow high in the branches of rain forest trees where they have access to abundant sunshine and rainwater, while the trees receive no benefit and are not harmed. This relationship is:
Competition
Parasitism
Mutualism
Commensalism
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Referring to the figure, as matter and energy move from grasses to coyotes, the amount of available energy _________________.
increases
decreases
decrease, then increase
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tapeworms sometimes live in the human intestines where they benefit from a constant supply of nutrients and a protected place to live. Humans, however, become quite sick as they cannot get enough nutrients from the food they eat. What type of relationship is this?
parasitism
mutualism
commensalism
competiton
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Polar bears swim across long expanses of ocean while hunting for seals, their main source of food. The bears use sea ice as resting spots during their long swims. However, the sea ice is rapidly melting as a result of global warming. Which statement describes what most likely will happen if global warming continues at its present rate?
Polar bear and seal populations will both increase.
Polar bear populations will decrease and seal populations will increase.
Polar bear populations will increase, and seal populations will decrease.
Polar bear populations will decrease and seal populations will remain the same. single quote is not allowed here, please use double quotes instead for string values
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What will happen to the populations of predators if there is a sudden increase in the food for the prey?
The population of predators will decrease because of a decrease in their food source
The population of predators will increase because of an increase in their food source.
The prey would remain the same because of carrying capacity
The population of predators will stay the same.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For a particular species the carrying capacity is the maximum number of individual organisms that:
the species could reach in a given time period if all the offspring survive and reproduce
could be supported by a given environment indefinitely
are in their post reproductive years
could be supported by any environment over a period of one year.
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