Vocab
Multiple Choice
Short Answer
100
A single living thing
Organism
100
What is the current rate of jungle loss, and what is its significance?
A) Jungles are expanding at a rate of 15 million hectares per year.
B) Jungles are declining at a rate of 15 million hectares per year, leading to habitat loss for species like orangutans.
C) Jungles are being preserved, with no significant loss in recent years.
D) Jungles are being restored at a rate of 15 million hectares per year.
B) Jungles are declining at a rate of 15 million hectares per year, leading to habitat loss for species like orangutans.
100
In a savanna, a lion population is thriving. Trophy hunters have moved into the area and are hunting the zebra, which is a major food source for the lions. How will this impact the lion population?
The lion population will start to decrease due to their food source (Zebra) being killed off by the hunters.
200
The living factors in an ecosystem
Biotic
200
What is the primary role of jungles in maintaining the planet's health?
A. They produce carbon
B. They host a vast array of species
C. They regulate the earths temperature
D. They act as carbon sinks, absorbing greenhouse gases
D. They act as carbon sinks, absorbing greenhouse gases.
200
In an ecosystem, what do organisms and populations with similar needs compete over?
They may compete over resources such as water, food, shelter/space, light, and mates
300
The nonliving factors in an ecosystem
Abiotic
300
Ecosystems generally contain many different species. In some cases, these species rely on the same resources to live. In this situation, species are most likely to
A. work together to use that resource.
B. find ways to bring in more resources.
C. change their growth patterns based on other species.
D. compete for the resource so they are able to survive.
D. compete for the resource so they are able to survive.
300
How might the loss of one species in a complex jungle ecosystem trigger a chain reaction affecting many others?
All species are connected in some way to each other. If one species is killed of, such as plants, plant eaters (primary consumers) will be affected, which will then affect the meat eaters (secondary consumers).
400
The biotic and abiotic factors that work together in an area
Ecosystem
400
Eagles and grizzly bears live together in the same habitat. There will be competition between the eagles and the grizzly bears only if which of the following is true?
A. Grizzly bears hibernate during the winter while eagles remain active
B. Pesticides in the fish population affect eagles’ eggs and decrease their population.
C. Both grizzly bears and eagles feed on the same species of salmon.
D. Laws prevent humans from being able to hunt eagles or grizzly bears.
C. Both grizzly bears and eagles feed on the same species of salmon.
400
How does competition limit the amount of individuals in populations?
Competition causes populations to decline because of the lack of resources. Less food, water, mates, sunlight, space, etc. means the population will start to die off.
500
All the organisms that are the same type in a certain area
Population
500
Refer to the bar graph below. Which of the following is the most likely explanation for the change in population in 2009?
A. Wolves, which prey on deer, were being hunted more than usual.
B. Rainfall in the previous spring was higher than the yearly average.
C. Humans introduced grazing animals that feed on the same plants as the deer.
D. More insects that pollinate flowering plants move into the habitat.
C. Humans introduced grazing animals that feed on the same plants as the deer.
500
How do predator-prey relationships, such as those involving jaguars or eagles, shape the balance of species in jungle ecosystems?
Jaguars and eagles are predators which balance the ecosystem by eating the prey populations so they do not overpopulate. In return, if there are too many predators and not enough prey, the predators will die off and balance the ecosystem.