Environmental Science (BSCS)

_________ is the set of all populations that inhabit a certain area.

• Community

• Relationship

• Abiotic

• Ecosystems

Which of the following best defines a closed community?

• A group of populations with constant migration

• A community with gradual changes in species composition

• A self-contained community with abrupt boundaries

• A population separated by physical barriers

What is an ecotone?

• A type of closed community

• A zone where two populations merge into one

• A clear boundary between two distinct ecosystems

• A gradual shift in climate over time

What type of community has no clear boundaries and species change gradually across areas?

• Closed community

• Open community
  

• Ecotone

• Population

What are the two basic categories of communities?

• Terrestrial and aquatic

• Open and closed

• Freshwater and saltwater

• Land and sea

What is a large-scale category containing many communities of a similar nature, whose distribution is largely controlled by climate?

• Biome

• Ecosystem

• Community

• Habitat

What is the coldest biome that receives little precipitation, making it similar to a desert?

• Taiga

• Grassland

• Tundra

• Savannah

What biome is hot, dry, and defined by having more water evaporate than falls as rain?

• Tundra

• Desert

• Grassland

• Forest

What biome is found near the equator, has warm temperatures, high rainfall, and the greatest biodiversity on land?

• Desert

• Temperate forest

• Tropical rain forest

• Savanna

What biome is dominated by shrubs with thick, waxy leaves and underground stems that help them survive dry summers and frequent fires?

• Grassland

• Shrubland

• Desert

• Tundra