Mucilaginous sheath. Cyanobacteria are microorganisms that have survived for a thousand years now. They process and create their food through the photosynthetic mechanisms they possess and this process also includes nitrogen fixation and other biogeochemical process that contributes to most cycles.
The answer will be C. Cause Earth to warm up unnaturally
Explanation: the more carbon dioxide in the atmosphere, the hotter the earth will become. Changing the earths climate
The cell wall of <em>Mycobacterium </em>is accountable for its slow growth, being <em />strongly impermeable to nutrients, and for its compact, wrinkled appearance in colony morphology. Most nutrients are hydrophobic such as certain fats and vitamins as well as some form of carbohydrates and proteins. Since the cell wall is hydrophobic, nutrient absorption of <em>Mycobacterium</em> is slow hence growth of the organism is also slow. A wrinkled colony appearance is also characteristic of microorganisms with hydrophobic cell walls.
On the other hand, while <em>Mycobacterium</em> is an aerobic organism; the hydrophobicity of the cell wall do not account for this characteristic of the organism.
Answer: D. Genetic mutation
Explanation:
For evolution to occur, there must be a genetic mutation in the genome of an organism such that a new allele is formed.
If this mutation occurred in the sperm and/or the ovum, the mutation will then be passed on through reproduction to the next generation. This leads to more of the subsequent generations having that mutation thereby leading to evolution.
