1. Calculate the magnification of the electron micrograph in Fig. 1.1. Show your working and give your answer to the nearest 10000.

2. Name three structures, present in animal cells, which are not present in the cells shown in Fig. 1.1.

1.Covers brightfield microscopy, fluorescence microscopy, and electron microscopy. ... One of my favorite examples of this is the picture below, which shows cells in ... beautifully formed in any plant you looked at – from the rose in your backyard, Covers brightfield microscopy, fluorescence microscopy, and electron microscopy. ... One of my favorite examples of this is the picture below, which shows cells in ... beautifully formed in any plant you looked at – from the rose in your backyard,

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.