Which of the following is an advantage of sexual reproduction over asexual reproduction? i. sexual reproduction is more rapid and less complicated. ii. sexual reproduction results in more diversity. iii. sexual reproduction requires only one parent. iv. sexual reproduction produces more offspring. a. iii only b. i only c. i and ii only d. ii only

ll only

Explanation:

Sexual reproduction combines half of the unique genetic material of one parent with half of the unique genetic material of another parent, resulting in a unique offspring. Asexual reproduction results in an offspring that is genetically identical to the parent.

The advantage of genetically-unique offspring is the increased likelihood of survival if and when the environmental conditions change. If a new environmental condition threatens one individual, then it threatens all identical individuals. In this way, an entire population of genetically-identical individuals may be wiped out by an environmental change.

muslims have taken his goods and products to different parts of asia an indonesia. sometimes just traveled and trade, but in other occasions, stayed in the place and made a living.

trade was the key for muslims economies to prosper. their commerce routes reached far places like malaysia and java in the 11th century.

another important factor for prosperity was that muslim states served as the middle point for european traders.

they used to travel by land but sailing the seas -the indian ocean- really increase the exportation of products.

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals