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30 Cards in this Set

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Single-celled or colonial organisms that do not have membrane-bound nuclei.


Have membrane-bound organelles and a membrane-bound nucleus.


Sum of populations inhabiting a particular area. (flowers, insects, etc.)


consists of all the living things in a particular area together with the abiotic, non-living parts of the environment such as nitrogen in the soil or rain water.

7 properties and processes of life

cellular organization- All living things made of cells.

evolutionary adaptation- an animal's ability to change to its surroundings and survive.

responsiveness- Living things must respond to environment (shivering, sweating)

reproduction- continuation of life for the survival of the organisms.

growth- All living things grow, some fast, some slow.

metabolism- energy processing that are the sum of chemical reactions to provide organism with energy.

homeostasis- When living things maintain a stable internal env't even though there are changes in external env't.


smallest structure


any of a number of organized or specialized structure within a living cell.


a group of atoms bonded together

What are the two major processes included in the dynamics of an ecosystem?

cycling of nutrients and flow of energy sunlight to producers and consumers.

What is an organism's basic unit of structure and function?

Cells are most basic building units of life. New cells are made from preexisting cells.


The study of the interactions of living organisms within their environment.

4 major abiotic components of climate

Temperature, Water, Sunlight, Wind


Large areas of land with similar climate, flora, and fauna.


A region of transition between two biological communities.

photic zone

portion of the ocean that light can penetrate.

pelagic zone

open-ocean not near the bottom

abyssal zone

deepest part of the ocean. Very cold, high pressure, high oxygen, low nutrient.

pelagic zone

open-ocean not near the bottom.

benthic zone

Extends along the ocean bottom from the shoreline to the deepest parts of the ocean floor


the flora and fauna found at the bottom of a body of water.


a layer of water with a temperature that is significantly different from that of the surrounding layers.


seasonal process that recycles nutrients and oxygen from the bottom of a freshwater ecosystem to the top of a body of water.

Why is turnover important in lakes?

They act to move thenutrients and oxygen at the bottom of deep lakes to the top. Occurs becausewater sinks when it becomes denser when the temperature changes.

population ecologist

studies how a population of organismschanges over time and the ways in which that population interacts with otherspecies in the community.


behavior in defense of anarea against other individual or individuals of the same species.


plants or organisms inhibiting others


group of animals of the same species studied over a period of time.

survivorship curve

Graph showing the number or proportion of individuals surviving to each age for a given species or group.

Three types of survivorship curves:

Type 1- Human lifetime

Type 2- Lizard and bird lifetime

Type 3- Frog lifetime

Biology 2040 Exam #1 Fall BGSU