Biomes

Biotic factors in a biome

• sand
• water
• kinds of birds
• air

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What may happen as sediment and decaying organisms build up in a pond?

• Algae will increase.
• The pond  may become a forest.
• A swamp becomes a marsh.
• There is a severe drought

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

How can the littoral zone of a lake or pond be described?

• an area closest to the edge of the pond
• an area with no plant life
• an area with no sunlight
• an area with no animal life

Tags

NGSS.MS-LS2-3

Found above the tree line of mountains

• polar tundra
• alpine tundra
• taiga
• desert

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Has clumps of trees and seasonal rains

• temperate deciduous forest
• coniferous forest
• savanna
• temperate grassland

Has many trees that do not change much seasonally

• desert
• coniferous forest
• temperate deciduous forest
• savanna

Tags

NGSS.MS-LS2-4

Has many trees that lose all their leaves to save water

• coniferous forest
• tundra
• temperate grassland
• temperate deciduous forest

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS1-5

Is made of skeletons of small animals

• Sargasso sea
• marsh
• coral reef
• polar ice

Includes mudflats, sandy beaches, and rocky shores

• coral reef
• intertidal area
• Sargasso Sea
• polar ice

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Changes in an ecosystem over a long period of time are shown in the diagram below.
These changes will most likely lead to a:

• stable ecosystem that can last for many years
• loss of heterotrophs that cannot be recovered
• long-term rise in environmental temperatures
• forest consisting of only producers and decomposers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4