Unit 8 Test

What is a behavioral response in which animals move to different areas as the seasons change? (a)  

• Migration
• Hibernation
• Nesting
• Flight

Some animals, such as bats in North America, Adapt to colder temperatures by allowing their body temperatures to drop and their breathing rate and heartbeat to fall. By doing this, they need less energy and can survive on their body fat. What is this entire process called?

• Deep sleep

• Estivation

• Hibernation

• Thermal Coma

Many animals sleep during the day and are active and hunt for food at night. These animals are-

• Diurnal

• Nocturnal

• Hibernating

• Estivating

What stimulus is the plant in the photo responding to?

• Gravity

• Water

• Touch

• Light

During the winter months, deciduous trees have lost their leaves and do not make food. What are these trees said to be?

• Dormant

• Nocturnal

• Diurnal

• Active

What process is taking place when plants' roots grow down into the ground?

• Geotropism

• Phototropism

• Gravitropism

• Pleitropism

Many insects do not look like their parents when they are first born. They go through one or more changes in their life cycles and eventually look like their parents. This type of change is called -

• Habitat

• Metamorphosis

• Migration

• Food chain

Which is an example of how certain factors can increase the size of a deer population?

• Disease breaks out because there is a large population living in a small area

• Birth rates increase because there is more food and shelter available

• An exotic species is introduced that competes with the deer's resources

• A widespread fire wipes out a large portion of the deer's most suitable habitat

How can lack of food harm animal populations

• Lack of food causes herbivores to change to carnivores

• Lack of food causes animals to search out humans to give them food

• Lack of food causes overpopulation and animals do not have room to move around

• Lack of food causes starvation and makes animals vulnerable to predators and disease

Human beings can have a negative effect on many populations. Which is NOT a negative action taken by humans?

• Humans can conserve land

• Humans can over fish

• Humans can destroy rainforests

• Humans can pollute