In most ecosystems, the original source of energy for the living things in the system is the sun.
<span>The factors that turned ferns into fossil fuels over thousand of years are pressure and heat.Ferns live in swamp forests, when they died and decayed they formed layers at the bottom of the swamp. Soil and water will built up and the heat and pressure would cause the decayed ferns to change over thousands of years, continuing to decay in the absence of oxygen will turn the fern into fossil fuels. <span>
</span></span>
When testing for hiv, an Antibody screening test produces more accurate results than the elisa test.
<u>Explanation:</u>
An Antibody screening test is the best test available to diagnose a HIV infected person by spotting a particular protein in the infected blood sample. HIV a sexual borne disease is highly contagious and a life taker. The earlier it is been deducted through the antibody screening test and the treatment can be given to expand your life cycle.
ELISA test is a normal test that is done collecting the blood sample of the patients and when known an ELISA test is done on an individual it defers and shakes the person scary to death as it takes a minute for the test but a long wait to announce the result
.
Answer:
The first yellow fever outbreaks in the United States occurred in late 1690s. Nearly 100 years later, in the late summer of 1793, refugees from a yellow fever epidemic in the Caribbean fled to Philadelphia. Within weeks, people throughout the city were experiencing symptoms.
I believe the answer is A, The pace it occupies.