Unit 5 Science 7 Review

Which is a logical predator-prey relationship?

• leech-human

• lion-gazelle

• rabbit-lettuce

• dog-mountain lion

The graph was made by a South American biologist in the country of Brazil after a long study on parrots. About 200 years ago, 90% of Brazil was covered in mature, deep forests. Today, well over half of this forest has been cut to make way for farms. What conclusion could you draw about the parrots in the graph?

• Red parrots have become less common in the last 200 years.

• There are probably fewer green parrots today than there once were.

• Blue parrots probably are the best-adapted species to live on farms.

• The blue parrot population has likely increased in the last 200 years.

Tags

CCSS.RI.7.7

CCSS.RI.8.7

CCSS.RL.6.7

CCSS.RL.7.7

CCSS.RL.8.7

The graph shown is from one of the most well-known and on-going ecological studies ever performed. Isle Royal National Park, an island on Lake Superior, keeps data of populations of wolves and moose living there. The moose are a major food source for the wolves. Since the warming of the climate by El Nino in 1998, the tick population on the island has increased. Ticks cause anemia and hair loss in animals. These factors can expose animals to hypothermia in cold weather. Scientists are hoping to incorporate all three factors in their research. What would be an appropriate research question to guide the scientists?

• Moose death is directly related to an increase in the tick population.

• How does an increase in the tick population impact the survival of the wolves?

• If the moose population increase, would we expect an increase in the wolf or tick population?

• What is the relationship between an increase in the tick population and the death rate of the moose and wolves?

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The graph was made by a biologist working in the Galapagos islands. The biologist examined the stomach contents of the ground finch, the leaf finch, and the cactus finch, to determine what foods they usually ate. The graph shows the average number of seeds of the 4 most common plant species found in the stomach of each type of bird. These finches live on the same island, close to one another. Based on this information, explain why these finches can co-exist in the same habitat.

• The three finches do not occupy the same feeding niche.

• The three finches have different habitats from one another.

• The finches compete for food and each finch is successful in one area of the island.

• Since daisy seeds make up a large portion of the diet of two finches, the third can eat what it likes.

Tags

NGSS.MS-LS2-1

There are three main types of symbiotic relationships: mutualism, commensalism, and parasitism. Which depicts commensalism?

• 
• 
• 

What does the mosquito do to warm-blooded animals?

• Sucks blood and possibly transmits disease

• Cleans their skin

• Provides food for birds

• None of the above

Tags

NGSS.MS-LS2-4

How do elephants help birds, according to the description?

• By providing water

• By allowing birds to eat parasites and bugs from their skin

• By carrying them to new places

• By protecting them from predators

Tags

NGSS.MS-LS2-2

Refer to the graph showing populations of hare (red) and lynx (blue). Which animal's population is generally higher throughout the years shown?

• Hare (red)

• Lynx (blue)

• Both are equal

• Neither, both are low

Tags

NGSS.MS-LS2-1

The Canada lynx is a rare wildcat in Minnesota. The lynx has large "snowshoe" like feet that enables it to walk on top of deep, soft, snows. Snowshoe hares are also common in the area. According to the graph of the interactions between the lynx and the hare, what best describes their ecological relationship?

• Mutualism

• Predator/prey

• Parasite/Host

• Interspecific competition

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

If the wolf population in Clay County increases and approaches 80 wolves, what would we expect to happen to the mountain lion population?

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4