1. Answer;
A. energy flows in one direction and nutrients recycle.
Explanation;
-The movements of energy and nutrients through living systems are different because the energy flows in one direction and nutrients recycle.
-Energy is transferred between organisms in one direction in a food chain, but that interconnected food chains make a food web.
-Most ecosystems get their energy from the Sun. Producers can use sunlight to make usable energy by converting it into chemical energy or food. Consumers get some of that energy when they eat producers, they pass some of the energy to other consumers when they are fed on.
2. Answer;
Nitrogen fixation.
Nitrogen fixation depends on bacteria.
Explanation;
Nitrogen fixation is the process by which nitrogen is taken from its stable gas form (N2) in air and then converted into other nitrogen compounds (such as ammonia, nitrate and nitrogen dioxide) useful for other chemical processes.
-The nitrogen fixing bacteria are microorganism capable of converting atmospheric nitrogen into forms usable by plants. They include the free-living bacteria, which includes cyanobacteria, azotobacter etc. and others such as mutualistic bacteria such as Rhizobium.
Answer:
C-The total mass off all the organisms in a representative area of the ecosystem.
Answer:
the accurate one is layer C is younger then layer A
Explanation:
L.S. is brought to the emergency department for management of acute mushroom poisoning. Her respirations are slow and shallow, and she is nonresponsive. She is admitted to the critical care unit to be closely monitored for the development of respiratory failure and renal failure, which often accompany mushroom poisoning. Her urine output is decreased to about 20 ml/hr. Her laboratory values are serum K+ = 5.7 mEq/L; arterial blood gases (ABGs): pH = 7.13, PaCO2 = 56 mm Hg, PaO2 = 89 mm Hg, HCO3- = 18 mEq/L.
1A. What is the most likely cause of L.S.’s potassium imbalance? Explain the role of the kidney in potassium excretion
Answer: L.S. is experiencing a intrarenal acute renal failure in the category of tubular necrosis (due to ingested mushroom toxins).
The kidneys helps to maintain the electrolyte concentrations by filtering electrolytes and water from blood, routing some to the blood, and excreting any excess into the urine.
Therefore, the kidneys help to maintain a balance between daily consumption and excretion of electrolytes and water.
Explanation:
Daily variations in potassium excretion are controlled mainly by changes in secretion in distal and collecting tubules.
• Maintaining potassium balance depends primarily on renal excretion which is determined by:
• the rate of potassium filtration
• the rate of potassium reabsorption by the tubules o the rate of potassium secretion by the tubules
i.e. About 65% the filtered potassium is reabsorbed the proximal tubule and another 25% to 30% in the ascending loop of Henle.
In physics, radiation<span> is the emission or transmission of energy in the form of waves or particles through space or through a material medium. This includes: electromagnetic </span>radiation, such as radio waves, microwaves, visible light, x-rays, and gammaradiation<span> (γ)</span>
