1.

Three bird species share a habitat. Bird A eats insects and plant seeds. Bird B drinks flower nectar. Bird C eats plant seeds.

A drought occurs in their habitat, and that season’s plants are wiped out entirely. What is the likely outcome for each type of bird?

Bird B survives; both birds A and C die.

Bird B survives; either bird A or bird C dies, and the other survives.

All of the birds die :(

Bird A survives; both birds B and C die.

2.
An increase in which of the following could increase the long-billed curlew population?
milkweed

grassland habitats

ocean habitats

pesticide use

Long-billed curlews eat many different kinds of insects, including grasshoppers, as a source of food. It has been shown that pesticide use kills many of these insects. How would you expect an increase in pesticide use to affect to the population of long-billed curlews in the same area?

It would stay the same.

It would increase.

It would decrease.

It would not be affected.

4.
How might bird populations on mountainsides respond to a warming climate?

The range shifts uphill over generations.

The range shifts downhill over generations.

There is not likely to be an effect based on a warming climate.

Their eggs will hatch later.

5.
What happened to North American coastal waters when the great white shark population decreased?

The clam population increased.

The human population increased.

The oyster population increased.

The ray population increased.

6.
Which organism is most responsible for the decrease in the great white shark population?

oysters

scallops

humans

rays

7.
Climate change is primarily driven by

photosynthesis.

fossil fuel burning.

mining.

deforestation.

8.
Hunting can be used to combat

invasive species

climate change

pollution

deforestation

9.
Fertilizer from agriculture flows into the ocean. What organism may directly benefit from this runoff?

fish

dolphins

algae

oysters

10.
Emperor penguins breed on shelves of sea ice in the winter. By spring, the chicks have developed waterproof plumage and are ready to swim in the cold ocean waters. What effect might a warming climate have on the penguins?

The chicks will grow into horse sized monsters and take over the world

The sea ice melts later in the season, and the penguins have to travel farther to find the perfect swimming hole

The sea ice melts before the chicks are ready to swim.

The sea ice freezes earlier in the winter which shifts the timelines in the metaverse

11.
Which statement provides the best evidence to support the claim that Burmese pythons have an impact on the environment?

Burmese pythons thrived in the Everglades ecosystem.

Burmese python numbers increased, and mammal populations decreased.

Burmese pythons have no natural predators in the Everglades.

Burmese pythons were first introduced to Florida as pets.

12.
What is an ecosystem?

A community of living things.

A community of non-living things.

An economical system of things

A community of living and non-living things.

13.
Which of the following are examples of non-living things (Mark all that apply).

weather

fish

trees

soil

humidity

bushes

14.
Living things that make their own food are called ____________________. (producers, consumers, decomposers, scavengers)

15.
Animals that get their energy from plants are called _____________________. (producers, consumers, decomposers, scavengers)

16.
________________________ eat the dead bodies of other animals.

Consumers

Scavengers

Spiders

Producers

17.
Food chains always start with ______________________.

producers

consumers

decomposers

scavengers

1 answer

1. Bird B survives; either bird A or bird C dies, and the other survives.
2. Grassland habitats
The population would decrease.
4. The range shifts uphill over generations.
5. The ray population increased.
6. Humans
7. Fossil fuel burning.
8. Invasive species
9. Algae
10. The sea ice melts before the chicks are ready to swim.
11. Burmese python numbers increased, and mammal populations decreased.
12. A community of living and non-living things.
13. Weather, soil, humidity
14. Producers
15. Herbivores or primary consumers
16. Scavengers
17. Producers