Honors Biology Chapter 3 Review

mathematical formula designed to predict population fluctuations in a community

The total amount of living tissue within a given trophic level is called the

relationships that form a network of complex interactions among organisms in a community 

Nitrogen fixation is carried out primarily by

Only 10 percent of the available energy is used for biomass, some is used life processes, and the rest is

What is the process by whichbacteria convert nitrogen gas in the air to ammonia?

Matter can recycle through the biosphere because

The rate at which organic matter is created by producers in an ecosystem is called

The trophic levels in Figure 3–2 illustrate

Biogeochemical cycling ensures that

Which of the following organisms does NOT require sunlight to live?

The lowest level of environmental complexity that includes living and nonliving factors is the

The simplest grouping of more than one kind of organism in the biosphere is

Branch of biology dealing with interactions among organisms, between organisms, & their environment

The algae at the beginning of the food chain in Figure 3–1 are

A bird stalks, kills, and eats an insect. which ecological terms describe the bird?

Plants are

What is the original source of almost all the energy in most ecosystems?

Ecological inquiry method that would be used to count the population numbers of a species

The movements of energy and nutrients through living systems are different because

If a nutrient is in such short supply in an ecosystem that it affects an animal’s growth, the

A snake that eats a frog that has eaten an insect that fed on a plant is a

What can happen after a lake receives a large input of a limiting nutrient?

What animals eat both producers and consumers?

All of the members of a particular species that live in one area are called a(an)

The combined portions of Earth in which all living things exist is called the

Organisms that obtain nutrients by breaking down dead, decaying plants and animals are called

An organism that cannot make its own food is called a(an)

Which of the following is NOT recycled in the biosphere?