FLASHCARD Ch 2 (2.1 - 2.4)

Front

Communities of organisms are made up of:

Back

Populations of different species.

Front

Regions above or below the optimal range of an environmental variable are called:

Back

Zones of stress.

Front

The growth pattern of marine bacteria in a petri dish that follows the sequence 2, 4, 16, 32, 64, 128 is best described as:

Back

Exponential.

Front

An organism's niche can be described in terms of abiotic and biotic factors. True or False?

Back

True.

Front

The only important role of sunlight in the marine environment is to provide energy for photosynthesis. True or False?

Back

False.

Front

Define 'niche' in an ecological context.

Back

The role or function of an organism or species within an ecosystem, including its habitat, resource use, and interactions with other organisms.

Front

What is the difference between a population and a community?

Back

A population is a group of individuals of the same species living in a specific area, while a community consists of different populations of various species interacting in a particular environment.

Front

What are abiotic factors?

Back

Non-living chemical and physical parts of the environment that affect living organisms, such as sunlight, temperature, and water.

Front

What are biotic factors?

Back

Living components of an ecosystem that affect the population of organisms, including plants, animals, and microorganisms.

Front

Explain the concept of 'tolerance zones' in ecology.

Back

Tolerance zones refer to the range of environmental conditions under which a species can survive and reproduce.