Yannick's class measured the width of one leaf serval times the values that the class recorded included 10 mm 8 mm 15 mm 5 mm 13 mm. The several different widths indicate that the class lacked the understanding of the word 'width' of the leaf and a standard procedure to make the measurements. Since leaf has two axis of making measurements, along the vein and across the vein. The measurements made along the vein would be greater than that of the across the leaf stem. Also the point of measurement of the width across the vein would vary as leaf tappers by the tip. Hence they should have been instructed to measure the width across the vein by folding the leaf into two halves, so as to make the readings more relevant.
<span>The correct answer is A.
Photosynthesis.
Photosynthesis is referred to as the process where plants use energy from the sun, carbon dioxide, and water to make food. Photosynthesis is largely responsible for maintaining and producing oxygen content of the atmosphere of the earth and then supplies all organic compounds and energy which is necessary for life.
The first photosynthetic organisms which probably evolved in the history of evolution is used as reducing agents, for example, hydrogen sulfide and hydrogen.</span>
It moves around feeding on organic matters like bacteria and other micro particles
Answer:
c.it comes from a specific type of flower
