Food provides the raw materials for biosynthesis and energy for cell activities. The body needs food, for growth and development and also for energy; these foods include; proteins, carbohydrates, fat, vitamins and minerals. Food helps us to stay healthy and productive; through various functions; for example proteins; are needed to build, maintain and repair muscle, blood, skin and bones and other tissues and organs in the body.
Bacteria are easier to observe on a plate. The bacteria look in the plate compared to the broth as with very clear morphological structures including margin and elevation point.
On a plate as opposed to in a broth, bacteria are easier to see. While it is simpler to observe bacteria in a clear container and we are able to see their morphology (size, shape, elevation, and margin), when looking at bacteria in broth, we can only tell if the bacteria is turbid or if there is flocculent microbial growth at the bottom of the nutrient broth tube.
A unique bacterial cell or group that has repeatedly split is represented by each separate colony. Because they were kept together, the resultant cells have amassed to create a noticeable area. Most bacterial colonies are often round in form and appear white or creamy yellow in color.
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Answer: Atmospheric Nitrogen is unreactive
Explanation:
The atmosphere is made up of about 80% Nitrogen, 16% oxygen, about 4% carbon dioxide, rare gases etc.
However, the 80% Nitrogen is highly unreactive, and needs to be trapped by competent micro organisms known as nitrogen-fixing bacteria in the root nodules of legumes.
Then, it is converted to several forms like nitrites, nitrates (easily absorbed by plants), ammonia and finally escape to the atmosphere again.
This brief illustration explains the NITROGEN CYCLE, and it is the only means by which plants and animals can use the highly unreactive nitrogen
Answer - A
Semi-conservative model of replication involves the replication of DNA in all the familiar cells in such a way that each newly synthesized daughter cell contains a double helix with one new strand and one old strand.
The answer is (D).. Stomata
