I Love Science 5.9C English

Spanish moss is a plant that grows on the branches of tall trees. The moss obtains sunlight, water, and nutrients from the debris around the tree to grow. It also used by birds to build nests. How will the Spanish moss effect the organisms in the ecosystem?

• The Spanish moss will cause the tall trees to die

• The Spanish moss will become shelter for many insects and other organisms in the environment.

• The Spanish moss will cause the organisms to relocate to a new location

• The Spanish moss will create more tree to grow.

In which example does a nonliving factor affect an ecosystem?

• Insects destroy most of the trees in the forest

• A tornado uproots many trees in a neighborhood

• A beaver uses trees it cuts down to build a dam on a river

• People cut down trees to clear land for building homes.

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In an ecosystem, there are many types of species populations. Which of the following decline in population is caused by overgrazing?

• A population of rabbits decline after an early snowstorm destroyed a food source

• A population of bears decline after a large wolf pack moves into the ecosystem

• A population of giraffe decline after a forest fire destroys all the trees

• A population of antelope decline after eating all the grass in an ecosystem.

How will the construction shown above most likely effect the environment?

• Animals in different parts of the ecosystem will be separated

• Habitats on both sides of the road will be damaged by flooding

• Plants will stop growing in the cleared ground

• Populations of predators will increase in this region.

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How do the floods due to Hurricane Harvey Positively impact city of Houston?

• Fish will adapt to reproduce faster

• Many fish species will become extinct

• Many fish species will learn to escape fishing nets

• Fish will be caught more quickly with new fishing nets.

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Scientists believe that over 70% of the world's fish species are now being killed faster than they can reproduce. What will most likely happen if people continue to fish at the same rate?

• Fish will adapt to reproduce faster

• Many fish species will become extinct

• Many fish species will learn to escape fishing nets

• Fish will be caught more quickly with new fishing nets

Which of the following would most likely result in a decrease in the population of insect-eating birds that build their nest on trees?

• Overhunting of animals that prey on birds

• Observation of birds by scientist

• Introduction of a new type of insect

• Clearing of forests to build a highway

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The nesting habits of four types of birds are above. If all the dead branches and dying trees in a wooded area are removed, which bird's nesting habit would be most affected?

• Baltimore Oriole

• Barn Swallow

• Downy Woodpecker

• Belted kingfisher

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