Topic 23 - Biomes - Flora and Fauna

A ________ is a complex network of interconnected food chains with multidirectional branches

food web

A self-sustaining association of living plants and animals and their nonliving physical environment is termed a(n)

ecosystem

In food webs, toxic chemicals tend to accumulate and concentrate most in the

top carnivores

Atmospheric nitrogen is readily available to living organisms

False

In which of the following areas would one tend to find the highest net primary productivity?

Northern Brazil

The study of the interrelationships between organisms and their environment is called

ecology

Which of the following is the largest carbon sink?

the oceans

Acacias and elephants in southern Africa are indicative of which biome?

tropical savanna

Distinct regions defined by their distinctive animal life are called ______

zoogeographic regions

Succulents, such as the saguaro cactus (Carnegiea gigantea) found in southern Arizona, southeastern California, northern Mexico, and the Baja Peninsula, are representative vegetation in which biome?

deserts

The boundary zone between adjacent biomes in which traits from both biomes may be found is called the

ecotone

The climate of the tropical rain forest biome is best described as

consistently warm and wet

The near annihilation of the American bison (Bison bison) has restricted its occurrence to a few protected remnants and preserves in this biome

midlatitude grassland

This extensive biome is dominated by evergreen needleleaf forests

boreal and montane forest

Trees and shrubs that seasonally loose their leaves are called

deciduous

Trumpet trees (Tabebuia caraiba), a dry-season deciduous tree, would likely be found in which of the following biomes?

tropical seasonal forest and scrub

Which of the following best describes an invasive species?

Non-native species that become established in a new area, taking over niches that were already occupied by native species, and causing harm to the environment or established population