APES Unit 1 Progress Check

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?

200 kilocalories/meter2/year

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

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.

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.

in the phosphorus cycle,

The phosphates absorbed by animal tissue through consumption eventually return to the soil.

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

Tropical rain forest

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

Tropical rain forest

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

Warm temperatures, high rainfall, and consistent sunlight

water cycle includes...

evaporation, transpiration, and precipitation

Which of the following smaller reservoirs of freshwater are missing from the diagram?

ice caps

cellular respiration can be measured...

in the dark by determining the amount of oxygen gas consumed in a period of time.

carbon cycle includes...

photosynthesis, cellular respiration, burning of fossil fuels

what is resource partitioning

using the same resource in slightly different ways to reduce the negative impact of competition on the two species

phosphorus cycle includes...

weathering, uplift, no atmospheric sink

Which of the following types of organisms are required to complete the nitrogen cycle, including the process of denitrification?

bacteria

list a carbon source

burning of fossil fuels

Which of the following biogeochemical cycles includes the processes of buffering ocean pH and photosynthesis, as shown in the diagram?

carbon cycle

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

coral reefs

nitrogen cycle includes...

fixation, nitrification, denitrification

the total rate of photosynthesis in a given area.

gross primary productivity

Which trophic level has the least available energy in kilojoules in this food web?

killer whale

the rate of energy storage by producers after subtracting the energy used in respiration. (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 freshwater biome is characterized by fast-flowing water that can originate from underground springs or runoff, which carries sediment and organic material.

rivers

The majority of the nitrogen on Earth can be found in which of the following reservoirs?

the atmosphere

Which of the following best identifies a key component of the hydrologic cycle that powers the movement of water and is missing from the diagram?

the sun

Which box represents a carbon sink that holds carbon compounds for the shortest period of time?

vegetation

Which of the following processes is illustrated by the downward arrows from the atmosphere that show the conversion of nitrogen gas into usable forms available to producers?

Nitrogen fixation