APES UNIT 1

Which of the following terrestrial biomes has the highest net primary productivity?

Taiga

Which of the following best describes a terrestrial ecosystem that will have the highest net primary productivity?

Warm temperatures, high rainfall, and consistent sunlight

The total rate of photosynthesis in a given area.

Gross primary productivity

Which of the following best describes the flow of energy in most terrestrial and near-surface marine ecosystems?

Producers use energy from the sun to make organic matter, such as sugars, from carbon dioxide and water and are then consumed by organisms higher in the food chain.

A temperate grassland biome has a gross primary productivity of 3,480kilocalories/meter2/year and a net primary productivity of 2,000kilocalories/meter2/year. Which of the following is the approximate number of kilocalories/meter2/year available to herbivores in that biome?

A 200kilocalories/meter2/year 200kilocalories/meter 2/ year

This rate of reaction can be measured in the dark by determining the amount of oxygen gas consumed in a period of time.

Cellular respiration

Energy is transferred along food chains from one stage to the next. Which statement best explains how the energy is transferred?

If a primary producer stores 10,000kcal 10,000 kcal of energy, then a tertiary consumer will have 10kcal of energy available.

In reef ecosystems, corals often have microalgae living inside them. The algae supply the corals with nutrients, and the coral give shelter to the algae. Which of the following interactions best describes the relationship between the corals and the algae?

Mutualism

The energy available to consumers determined by subtracting the energy used by plants from the total energy transformed by the process of photosynthesis.

Net primary productivity

This biome is found in shallow waters off the coastline and is Earth's most biologically diverse marine biome.

Open ocean

Which of the following trophic levels represents a primary producer in an aquatic food chain?

Phytoplankton

This freshwater biome is characterized by fast-flowing water that can originate from underground springs or runoff, which carries sediment and organic material.

River

Which of the following describes the most likely change to terrestrial biomes resulting from warmer average global temperatures?

The global distribution of midlatitude biomes, such as grasslands and temperate rain forests, would increase.

Which of the following terrestrial biomes has the highest primary productivity per unit area?

Tropical Rain Forest

Which of the following best describes an example of resource partitioning in an ecosystem?

Two different bird species feed from the same oak tree; one eats acorns, and the other eats insects in the bark.

This biome contains a nutrient-rich environment created by falling leaves and trapped organic materials from the large trees, and it provides the ecosystem service of filtering pollutants from water.

freshwater wetlands