1 : How do you calculate the adjusted amount of energy that is available to organisms that are one trophic level above producers? 2 : Methylmercury biomagnifies in an ecosystem, meaning its concentration as it moves through each higher trophic level

3 : Scientists are looking to determine the primary productivity of a lake by analyzing its oxygen net primary productivity. How are scientists able to measure how much oxygen is used during a plant’s cellular respiration processes?

4 : Energy transfer is inefficient between trophic levels because

5 : Primary productivity is defined as

1. 10% of the energy at lower trophic level

2. Methylmercury biomagnifies in an ecosystem, meaning its concentration increases  as it moves through each higher trophic level

3. Scientists can measure oxygen used during a plant’s cellular respiration by measuring dissolved oxygen in water

4. Energy transfer is inefficient between trophic levels because 90% energy is retained at each trophic level

5. Primary productivity is defined as rate at which energy is transformed into organic matter.

Explanation:

1. The energy transferred from lower tropic level to its next trophic level is equal to 10% of the total energy at the lower level.

2. increases

3. By measuring dissolved oxygen in water after every 24 hours. Reduced DO  value from the prior reading indicate the amount of oxygen used by plants

4. Because nearly 90% of energy is retained at each trophic level to carry out cellular metabolic activities.

5. It is the rate at which energy is transformed into organic matter.

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.