ISC Chapter 23

Which of the following would NOT fall into the
category of environmental factors called abiotic?

Which trophic level contains the least amount of available
chemical potential energy?

Where would you expect to find autotrophs in a food chain?

The direction of energy flow in ecosystems ________
the Second Law of Thermodynamics.

Biodiversity would be highest in this biome:

In which ecological community or biome, would one find the Moon considered an abiotic factor?

Competition happens between organisms

During which period of Earth history did the production of
organic matter exceed the rate of decomposition?

Carbon dioxide is released to the atmosphere by
these organisms:

Human interference in the carbon cycle occurs at
many places in the cycle and one such interference has resulted a side-effect called:

Farmers can increase their crop yields because
humans have been able to make modifications or changes to the natural

The effect upon planetary temperature of carbon dioxide does not just occur on Earth-it has also been found:

Which of the following countries would most resemble
the horizontal bar graph of population and reproductive
status of the United States?

Environmental resistance affects the populations of

Although China and India have used different means
to implement human population control with widely differing success, common to both was (and currently still is in the case of India):

Approximately how many people will be added to the Earth between 2004 and 2025?

Predators are not always the fastest or strongest organism in an ecosystem; sometimes, a predator may use ________ with which to find or capture its prey.

Humans may be exclusively herbivores but not exclusively
carnivores. The reason for the latter condition must ultimately reside in

An organism's functional role within its community:

Scientists who make a scientific study of the relationships
between organisms and their environment

All animals are

The sequence of organisms feeding on one another

Cyanobacreria are found on which trophic level

Aspen, birch, oak, and maple trees are common to this biome

Deserts receive less than inches of rain per year

Organisms termed plankton belong to which group

Organisms that live on the bottom of the ocean are termed

The limnetic zone is a region found in

The key word with which to understand the concept of ecological niche

The mistletoe plant is considered an ecological organism

The ecological relationship between organisms where one benefits and the other is not affected

Plants obtain their carbon atoms from

How do animals get the nitrogen they need to form amino acids

A measure of how often a specific gene for a specific characteristics shows up in the individuals of a population

Organism populations are often broken-down for
study into groups on the basis of:

Homo sapiens displays a sex ration of

The maximum population of organisms an area can support

The number of organisms of a species per unit area