Unit 1 Progress Check: MCQ

अब Quizwiz के साथ अपने होमवर्क और परीक्षाओं को एस करें!

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?

200kilocalories/meter2/year

Based on the food web shown above, which of the following correctly describes the flow of energy through the trophic levels from producers to quaternary consumers?

Brittlebrush, grasshopper, grasshopper mouse, rattlesnake, red-tailed hawk

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

Correct. Certain bacteria are specialized in fixing nitrogen, in association with plants such as soybeans and other legumes. Other types of bacteria perform nitrification: converting ammonium ions into nitrite ions, and then into nitrate ions. Finally, other bacteria perform denitrification, the reduction of nitrates back into nitrogen gas.

The total rate of photosynthesis in a given area.

Gross primary productivity

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 of energy, then a tertiary consumer will have 10kcal of energy available.

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

Killer whale

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.

Based on the second law of thermodynamics, how much biomass of phytoplankton would be needed to produce 1 kilogram (kg) of large fish in this food web?

Since energy transfer is not 100% efficient and assuming the 10% rule, 10kg of phytoplankton would not be enough to produce 1kg of large fish. 1,000kg

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

The atmosphere

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 statements is best supported by the diagram of 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

source of carbon

fossil fuels


संबंधित स्टडी सेट्स

Primerica (Taxation of Life Insurance and annuities-Premiums and Proceeds)

View Set

The Iroquois Creation Myth: "The World on Turtle's Back"

View Set

Med Term- Chp. 6 "Cardiovascular System"

View Set

A&P II: Chapter 16: Endocrine System

View Set

Thinking, Language, and Intelligence

View Set

Anatomy Nervous System for Leatra

View Set

MisConceptual Questions Chapter 15

View Set

цифра французькою

View Set