Ecosystems Pre-Test

First Name:

Last Name:

What hour do you have Biology?

• 1st Hour
• 2nd Hour
• 3rd Hour
• 5th Hour

Which of the following describes “permafrost”?

• A frozen layer of soil that has limited the downward growth of plant roots
• A layer of carbon dioxide that has created more opportunities for trees to grow
• A type of animal in the arctic tundra that has adapted to have thick fur to survive the cold
• A type of tree in the arctic tundra that remains frozen throughout the entire year

Which of the following would be considered an adaptation for plants in the desert biome?

• Have stems that are known to release water in the hot environment
• Leaves have changed to spines to conserve (save) water and protect against herbivores
• Desert plants have failed to adapt to the desert environment leading to low biodiversity
• Produces seeds that are not able to survive the hot environment

When examining data on the precipitation of an environment, which of the following would BEST describe the precipitation levels that would be found in the desert?

• This is an environment that is COLD all year and receives less than 250 mm of rainfall a year.
• This is an environment that is HOT all year and receives less than 250 mm of rainfall a year.
• A hot or cold place that receives around 1000 inches of rainfall per year.
• A hot or cold place that receives around 10 inches of rainfall per year.

Horned lizards have several defense mechanisms to fight off predators. Which of the following is one of their defense mechanisms?

• They can squirt blood from their eyes
• Use their claws to attack predators
• Their horns are essentially useless against predators
• They can control ant movement which is a main component of their diet

Which of the following is a reason that rainforests are so important?

• Rainforests produce carbon dioxide for humans
• Sand was created here and transferred to the desert
• A quarter of all natural medicines were discovered here
• Rainforests provide us with oil

The Venus flytrap has modified leaves that form traps for insects and other animals. The plant emits a sweet, sticky substance that attracts insects. When the insect lands on the leaf, the leaf shuts and eats the insect over several days. Which organism is known as the PREY?

• The Insect
• The Venus Flytrap
• The digestion process
• The sticky substance

The Venus flytrap has modified leaves that form traps for insects and other animals. The plant emits a sweet, sticky substance that attracts insects. When the insect lands on the leaf, the leaf shuts and eats the insect over several days. Which organism is known as the PREDATOR?

• The Insect
• The Venus Flytrap
• The digestion process
• The sticky substance