Biology -Topic Quiz 1B Review

Which best identifies the relationships between the wheat and the mice?

• Producer (Wheat) & Consumer (Mice)

• Host (Wheat) & Predator (Mice)

• Predator (Wheat) & Consumer (Mice)

• Consumer (Wheat) & Producer (Mice)

A pond ecosystem is represented in the diagram. Energy for this ecosystem originally comes from_____________

• water

• consumers

• sunlight

• plants

Which list includes only abiotic factors?

• trees, flowering plants, mosses, and ferns

• humidity, temperature, rodents, and grasses

• ducks, fish, soil, and water

• soil, water, air, and sunlight

The graph shows the growth of a population of rabbits in a specific ecosystem. Which environmental factor could have caused the change indicated at A?

• increased predation by herbivores

• increased availability of food

• increased number of decomposers

• increased competition among carnivores

Male grizzly bears can maintain territorial control over many square miles. What is this role as a top predator in the territory known as?

• a biosphere

• an ecosystem

• a habitat

• a niche

Two different species of insect-eating birds feed and nest at different levels in the same evergreen tree. In this way they avoid

• predators

• parasites

• succession

• competition

The graph below shows the changes in the size of a population over a period of time. Which environmental condition could have caused the change in the population size at A?

• an increase in competition

• a decrease in the size of its predators

• a constant availability of shelter

• an unlimited supply of its food

Base your answer to the following question on the information below and on your knowledge of biology. Years after the lava from an erupting volcano destroyed an area, lichens started to grow in that area. These were gradually replaced by grasses, shrubs, conifers, and finally, by a deciduous forest

In this sequence of events, the lichens functioned as

• primary consumers

• abiotic factors

• climax organisms

• pioneer organisms

. Which type of relationship is illustrated by a protozoan causing the disease malaria in a human host?

• parasitism

• trophic levels

• commensalism

• mutualism

Bacteria which live in the human intestine derive their nutrition from digested foods. From these nutrients digested by the human, the bacteria synthesize vitamins usable by the human. This relationship demonstrates

• mutualism

• commensalism

• parasitism

• trophic levels