Poulsen IB ESS Topic 2

Components of an ecosystem that are living (plants, animals, fungi, bacteria, etc)

• biotic

• abiotic

Tags

NGSS.MS-LS2-2

A group of organisms that share common characteristics and CAN INTERBREED to produce fertile offspring.

• community

• ecosystem

• species

• biosphere

A particular environment and 'lifestyle' that a species has. It includes the place where the organism lives and breeds, its food and feeding method, activity patterns and interactions with other species.

• habitat

• niche

• ecosystem

• feedbacks

This type of niche is the potential mode existence given its adaptations.

• fundamental niche

• realized niche

This type of ecosystem includes the sea, salt marshes, mangrove swamps, and saline estuaries.

• marine system

• freshwater system

• terrestrial system

Tags

NGSS.MS-ESS2-4

This is a key abiotic factor of a marine ecosystem that is a measure of the salt content of the water. This affects the buoyancy of organisms and their ability to control salt levels in their bodies. It also affects the density of the water.

• pH

• Temperature

• Dissolved Oxygen

• Salinity

Tags

NGSS.MS-LS1-5

This is a key abiotic factor of both marine and freshwater ecosystems. It determines the amount of oxygen that is able to dissolve in the water and will then be available for the respirating organisms within the water. It affects their metabolic rate. It can also impact the rate of decomposition taking place.

• pH

• temperature

• dissolved oxygen

• turbidity

Tags

NGSS.MS-LS2-4

NGSS.MS-LS1-5

TRUE or FALSE: Warm water can hold more dissolved gases like oxygen and carbon dioxide compared to cold water.

• TRUE

• FALSE

Answer explanation

The additional energy found in warm water actually allows the dissolved gases to be released much easier/faster. Thermal pollution is when water is too warm and lacks enough oxygen for respirating organisms.

A group of organisms of the same species that live in the same area at the same time and are able to interbreed is called a

• population

• community

• ecosystem

• biome

Tags

NGSS.MS-LS4-4

This is a type of competition in which populations compete with their own members.

• intraspecific competition

• interspecific competition

• predation

• mutualism