University:
Northwestern State University of Louisiana
Course:
BIOL 3310 | Human Anatomy & Physiology I
Academic year:

2021
Views:

198

Pages:

2
Author:

5prinzg1s

CHAPTER 3 STUDY GUIDE KNOWLEDGE 1. The branch of biology dealing with interactions among organisms and between organisms and their environment is called ecology. 2. The combined portions of Earth in which all living things exist is called the biosphere. 3. All of the members of a particular species that live in one area are called a(an) population. 4. Which of the following descriptions about the organization of an ecosystem is correct? Species make up populations, which make up communities. 5. The simplest grouping of more than one kind of organism in the biosphere is a community. 6. The lowest level of environmental complexity that includes living and nonliving factors is the ecosystem. 7. Which of the following is NOT a basic method used by ecologists to study the living world? classifying 8. Which ecological inquiry method is an ecologist using when he or she enters an area periodically to count the population numbers of a certain species? observing 9. A mathematical formula designed to predict population fluctuations in a community could be called a(an) ecological model. 10. Plants are producers 11. What is the original source of almost all the energy in most ecosystems? Sunlight 12. An organism that uses energy to produce its own food supply from inorganic compounds is called a(an) autotroph 13. Which of the following organisms does NOT require sunlight to live? chemosynthetic bacteria 14. An organism that cannot make its own food is called a(an) heterotroph 15. In which way are plants in a sunny mountain meadow and sulfur bacteria in a deep-sea volcanic vent alike? They both produce carbohydrates and oxygen. 16. Organisms that obtain nutrients by breaking down dead and decaying plants and animals are called decomposers 17. What is an organism that feeds only on plants called? herbivore 18. All the interconnected feeding relationships in an ecosystem make up a food web. 19. The total amount of living tissue within a given trophic level is called the biomass 20. What is an ecological model of the relationships that form a network of complex interactions among organisms in a community from producers to decomposers? food web 21. What animals eat both producers and consumers? Omnivores 22. What is the term for each step in the transfer of energy and matter within a food web? trophic level 23. A bird stalks kill, and then eats an insect. Based on its behavior, which ecological terms describe the bird? carnivore, consumer 24. A snake that eats a frog that has eaten an insect that fed on a plant is a third-level consumer.

Biological Foundation Chapter 3 Study Guide

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