Ecosystem and Population TEST 2

In an ecosystem, the correct sequence is: species, ________, communities, ________.

• populations, habitats

• habitats, populations

• populations, ecosystem

• ecosystem, populations

An environmental factor that causes a population to decrease or stop growing is called a ________.

• Limiting factor

• Growth factor

• Supporting factor

• Expanding factor

What are ways that a population can increase?

• Birth and immigration

• Death and emigration

• Limiting factors

• Predation and disease

In a forest, a group of rabbits with brown fur are better camouflaged against the forest floor compared to rabbits with white fur. Over time, the brown-furred rabbits tend to survive and reproduce more successfully, this describes ________.

• Natural selection

• Genetic drift

• Artificial selection

• Mutation

What are two primary forms of relationships between organisms in an ecosystem?

• Predation and Symbiosis

• Competition and Cooperation

• Mutualism and Parasitism

• Predation and Competition

Adaptations are the ____________________ and ____________________ characteristics that allow an organism to live successfully.

• Physical and Behavioral

• Chemical and Structural

• Genetic and Environmental

• Temporary and Permanent

In the African savannah, a lion that hunts and kills a zebra for food and nutrients is the ____________________.

• Prey

• Predator

• Scavenger

• Herbivore

In a forest, a deer is hunted by a lion. The deer is the ____________________.

• Predator

• Prey

• Parasite

• Host

What are the three main types of symbiotic relationships found in nature?

• Mutualism, Parasitism, Commensalism

• Competition, Predation, Cooperation

• Symbiosis, Parasitism, Predation

• Mutualism, Competition, Predation

Henry and Ethan work together on a project, and both benefit from each other's skills. This relationship is an example of ____________________.

• Parasitism

• Commensalism

• Mutualism

• Predation