The area or part of the forest that the organisms are part of.

All animals and plants living in this ecosystem.

All of a certain organism (the deer) in this community.

An animal that preys on another animal (its prey). Ex: Snake.

The preying of one animal on another.

An animal being preyed upon. Example: Rabbit.

All biotic and abiotic factors in the environment where an organism lives. E.g., my house (my habitat).

An animal that only eats meat. Example: lion.

All the physical, chemical, and biological factors that a species needs to survive and reproduce. Examples include food sources, abiotic conditions, and behavior.

A close ecological relationship between two or more organisms of different species that live in direct contact with one another. Example: humans and pets.

A type of symbiosis where both species benefit from the relationship. Example: shrimp cleaning fish's mouth.

A type of symbiosis where one organism receives an ecological benefit from another. Example: an egret that eats insects kicked up by a cow.

A type of symbiosis where one organism benefits and the other is harmed. Example: A wasp that lays its eggs in a caterpillar.

Factors Reducing Biodiversity

Clearing land to grow crops, introducing new plants and animals, and pesticide use can reduce biodiversity by removing native species or competing for resources.

The number of individuals living in a defined space.

During logistic growth, a population begins with a slow growth period, then an exponential growth period before leveling off.

Occurs when a population size increases dramatically over a short period of time.

The maximum population size of a species that a particular environment can normally and consistently support in terms of its resources.

Density-dependent limiting factors

Factors affected by the number of individuals in an area; larger population = greater effect. Includes competition, predation, and parasitism/disease.

Density-independent limiting factors

Factors that can impact a population regardless of its density. These include weather, natural disasters, and human activities.

The ability of an ecosystem to resist change from a disturbance.

The ability of an ecosystem to recover after it has undergone a disturbance.

Ecological succession

The sequence of biotic changes that creates a community in a previously uninhabited area or restores a damaged community.

The establishment and development of an ecosystem in an area that was previously uninhabited, usually a bare rock surface.

The re-establishment of an ecosystem in an area where the soil was left intact, such as after a fire or flood.

The first species to colonize or inhabit a damaged ecosystem, usually resilient species.

A combination of algae or cyanobacteria, fungi, yeasts, and bacteria that live together in a mutualistic relationship; an example of a pioneer species.

The final, stable stage of an ecosystem reached through ecological succession where plant and animal species composition remains relatively constant.

The end result of a biological process.

A substance made up of one type of atom.

The initial substances in a chemical reaction.

Two or more atoms bonded together by shared electrons.

Substances composed of atoms of two or more different elements bonded together in specific ratios.

The smallest basic unit of matter.

Change materials into different substances by breaking chemical bonds and forming new ones.

A way to present information about the chemical proportions of atoms that constitute a particular chemical compound or molecule.

Conservation of Matter

In chemical reactions, atoms are not created or destroyed, just rearranged.

Made of carbon, hydrogen, and oxygen. Provides quick energy for the body.

Fats and oils made of fatty acids used to store energy and make up structures like cell membranes.

Consists of long chains of amino acids. Important for body structures such as muscles.

Made of nucleotides composed of sugars, nitrogen-containing bases, and phosphates. They carry genetic information.

A molecule that can react with other molecules to form very large molecules or polymers.

A large molecule made of many smaller monomers.

Living Earth 1st Semester Final Flashcards Flashcards

Student preview

100 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Geosphere

Back

All solid features of Earth's surface, such as mountains, continents, and the seafloor.

2.

FLASHCARD QUESTION

Front

Biosphere

Back

All living things/area where life exists.

3.

FLASHCARD QUESTION

Front

Atmosphere

Back

All the air that envelops Earth's solid and liquid surfaces.

4.

FLASHCARD QUESTION

Front

Hydrosphere

Back

All of Earth's water, including water in the form of liquid, ice, and water vapor.

5.

FLASHCARD QUESTION

Front

Cryosphere

Back

The frozen water that is part of the Earth's system.

6.

FLASHCARD QUESTION

Front

Anthrosphere

Back

The portion of Earth's environment that has been constructed or modified by humans.

7.

FLASHCARD QUESTION

Front

Biome

Back

The biome consists of the forests these organisms inhabit.

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