An ecological system, or ecosystem, encompasses     a. biotic and abiotic factors.   b. abiotic factors onlly.   c. biotic factors only.   d. only land.

The comprises all living organisms on Earth, plus the environments in which they live. O a. biome O b. biosphere C. hyporheic zone O d. benthic zone

All biotic and abiotic factors are interrelated.  In nature you will find that if one factor is changed or removed, it impacts the availability of other resources within the system.  Knowing this, give an example of what might happen given the following situations. In the areas with the open space place either an A for abiotic or B for biotic to identify what the object is.

The total amount of living tissue within a given trophic level is called the: O A. Biomass O B. Energy mass C. Organic mass O D. Trophic mass

The major factors that make up the environment/ecosystems is/are? a. physical and chemical factors b. chemical c. biological d. physical, chemical and biological

The study of nutrient cycling though the environment is an example of which of the following? a. organismal ecology b. population ecology c. community ecology d. ecosystem ecology

Eutrophication in water bodies can lead to the formation of dead zones due to a depletion of   a. oxygen.   b. carbon.   c. nitrogen.   d. decomposers.   e. phosphorus.

What is the difference between a community and an ecosystem? Group of answer choices a. an ecosystem includes the abiotic environment b. a community includes the abiotic environment c. they are exactly the same thing d. an ecosystem covers a larger geographic area e. a community covers a larger geographic area

Answer the questions below based on the Active Reading above: 1. Organisms need to live and to survive. 2. What do limiting factors do? a. Separate biotic factors from abiotic factors. b. Determine which is the predator and which is the prey. €. Regulate how many organisms live in an ecosystem. d. Determine which natural disasters will hit an area. 3. Which of the following are abiotic limiting factors? a. The decomposers in an ecosystem. b. The populations of producers in a given habitat. c. Carrying capacities of several species. d. Water, space, and oxygen. 4. Which of the following is a biotic limiting factor? a. The amount of breathable oxygen available to a population. b. Food available for organisms lw ast C. The nitrogen to oxygen ratio in the air supply. d. The number of bodies of water in a habitat. 5. In biology, what is carrying-capacity? a. The maximum population size an ecosystem can support. b. A total list of the limiting factors. C. How much weight an organism can…

Theterrestrial ecosystems with highest primary production are usually those thatare:a. warmand wet.b.warm and dry.c.cool and wet.d.cool and dry.e.intermediate in both temperature and moisture.