Answer:
a- black powder
Explanation:
it is powder and has no pigment
<span>Sexual reproduction has the potential to produce tremendous genetic variation in offspring.<span>This variation is due to independent assortment and crossing-over during meiosis, and random union of gametes during fertilization.
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Type 1 stools are detached, hard lumps that be similar to nuts that are tough to pass. Type 3 stools are like a sausage, but with pops on the surface. Type 5 stools are mushy blobs with clear-cut ends that are passed effortlessly. Type 6 stools are cottony pieces with raggedy edges.
The human body is made up of four different types of tissues, these are epithelial, muscular, connective and nervous tissues. Epithelial tissues refers to the thin tissues, which covers all the exposed surfaces of the human body. They can be found in the following places: digestive tract, inner lining of the mouth, secretory glands, external skin, the lining of hollow part of the heart, etc. The cells of epithelial tissues are usually closely bound together and they lack blood vessels and nerves.
