What defines an ecosystem?

The stroma is the central location of light-independent reactions

Robert Hooke first used the term cell in 1665. However, nearly 200 years passed before scientists developed the cell theory. Why did it take so long between the first use of the term cell and the development of the cell theory?

What is a food chain?

During chemical reaction, chemical bonds are

The yellow fever virus replicates in lymph nodes and in other immune system cells. how does it arrive in lymph nodes

Is produced along with water at the end of normal cellular respiration?

Stimulation of a cell by a molecule that the cell itself makes is called stimulation

From the producer level to which level does energy flow directly? A. decomposer B. tertiary consumer C. secondary consumer D. primary consumer

What motion will result from two forces acting on an object : one forcee of 50 newtons to the east, the other a force of 30 newtons to the west? The object will-

Name the progression of coal types with increased heat and pressure from burial