Exam 17: Communities and Ecosystems

The niche of a lichen in an ecosystem is A) a producer. B) a consumer. C) a detritivore. D) a decomposer. E) more than one of these. F) Because lichens are both fungi and a photosynthetic partner, a lichen is both a consumer (the fungus) and a producer (the photosynthetic partner)

Which of the following is a primary consumer?

Which of the following is NOT characteristic of parasites?

Which of the following components are part of an ecosystem?

Which of the following is the most inclusive?

What is the ultimate fate of the heat energy released when chemical bonds are broken?

Which of the following is a TRUE statement concerning ecosystems?

The monarch butterfly is poisonous to birds and so birds avoid eating them. Viceroy butterflies look very similar to monarch butterflies but are not poisonous. Because they look like monarch butterflies, birds also do not eat viceroy butterflies. This is an example of

Animals obtain minerals such as phosphorus

Which of the following represents nitrification?

Which of the following is an example of an event that would set up the scene for primary succession?

Which of the following is true of predation?

Which of the following is NOT an aspect of a species' niche?

The warming action on earth's atmosphere is referred to as

In contrast to predation, a parasite usually

Selecting the Exception Four of the five answers listed below are relationships in which at least one of the interactants benefits. Select the EXCEPTION.

In most land ecosystems, ___ food chains are most common.

Mistletoe is a plant that grows commonly on the limbs of hawthorn trees and extracts nutrients from its host plant. The relationship between mistletoe and the hawthorn tree is

The interaction in which one species benefits and the second species is neither harmed nor benefited is

In a natural community, the primary consumers are