tudy guideWhich is most likely to be a limiting nutrient in a freshwater pond? A. phosphorus
A mathematical formula designed to predict population fluctuations in a community could be called a(an) ecological model
An organism that cannot make its own food is called a(an) A. heterotrph
The algae at the beginning of the food chain are C. producers
The rate at which organic matter is created by producers in an ecosystem is called primart procuctivity
-Biogeochemical cycling ensures that B. nutrients will be circulated throughout the bioshpere
-What animals eat both producers and consumers? B. omnivores
-The lowest level of environmental complexity that includes living and nonliving factors is the C. ecosystem
-Organisms that obtain nutrients by breaking down dead and decaying plants and animals are called A. decomposers
-An organism that uses energy to produce its own food supply from inorganic compounds is called a(an)D. autotrophs
-The rate at which organic matter is created by producers in an ecosystem is called D. primary productivity
-Carbon cycles through the biosphere in all of the following processes EXCEPT B. transpiration
-Organisms need nutrients in order to B. carry out essential life functions
-Plant-eating animals such as cows are called ___herbivores________.
-Which of the following is NOT a basic method used by ecologists to study the living world?b. Classifying
-An organism that uses energy to produce its own food supply from inorganic compounds is called a(an) D. autotroph
-Organisms that break down organic matter and return it to the environment are called __decomposers____.
-In which way are plants in a sunny mountain meadow and sulfur bacteria in a deep-sea volcanic vent alike? B. they both produce carbohydrates and oxygen
-Most of the energy available to a consumer trophic level is used by organisms for B. respiration, movement, and reproduction
-If a nutrient is in such short supply in an ecosystem that it affects an...