Answer:
2, 4 and 5
Explanation:
The wall of Mycobacterium tuberculosis (a typical Mycobacterium) has a high lipid content, hence it does not respond to gram staining. Instead, acid-fast staining or Ziehl-Neelsen stain is used in its identification.
The cell wall of Mycobacterium species is thicker in comparison with other bacteria in the sense that it is hydrophobic, waxy and contains a unique acidic wax, known as mycolic acid.
Mycobacterium tuberculosis is an obligate aerobe, which means it is strictly dependent on oxygen. It thrives (multiplies) best under this condition.
Some species of Mycobacterium ate saprophytic i.e. they live on dead organic matter while some are obligate parasites that live on tissues e.g M.tubercosis and M.leprae causes tuberculosis and leprosy in humans respectively.
<span>Atlantic cod was the mainstay of fisheries based in southeast Canada and New England.for centuries
However, in the early 1990s, a dramatic decline in cod stocks forced fishery managers to close
some of the world's most productive fishing grounds..The case study of the Atlantic Cod as an
illustration of major issues in the management of marine fisheries.The bottom trawl increased landings but
unlike earlier methods, captured many non-target species and disturbed or destroyed bottom habitats. In May of 2003, the Canadian fisheries ministry ordered an end to all Atlantic cod
fishing in three regions off the Newfoundland and Labrador coast In the same year fishing in three regions off the Newfoundland and Labrador coast. In the same year,Newfoundland and Labrador Atlantic cod populations were declared “endangered.”.The establishment of a “200-mile fishing limit”.had been demanded by the domestic fishing industry for years to reduce the
impact of foreign fishing vessels on fish stocks. Recently, it has been suspected that increased herring populations may be inhibiting recovery of cod.  Atlantic herring populations increased after the decline of Atlantic cod in the early 1990s  Herring feed on cod eggs and larvae and therefore, the community may be stuck in a herringâ€dominated system. Earlier attempts to end over fishing and implement
ecosystem-based fishery management have fallen short of the hopes of mostfisheries managers and scientists.</span>
An _observation_ is taken using the senses
Trace elements such as iron, iodine, fluoride, copper, zinc, and molybdenum (and much more) are very important for maintaining health. We only need very small amounts. They are also reffered as microminerals, these elements are part of enzymes, hormones and cells that we need in the body. Without these small amounts of trace elements, our body starts to show symptoms of nutrition deficiency.
hope this helps!
Photosynthesis and cellular respiration interconnect plants and human beings.
Explanation:
Plants prepare their own food and are autotrophs. Humans depend on autotrophs both directly and indirectly for food and are heterotrophs.
Heterotrophs consume both plants and animals to get energy
Photosynthesis: reactants - sunlight, carbon dioxide and water; products – sugar, oxygen
Cellular respiration: reactants - glucose and oxygen; products – water, carbon dioxide
Carbon dioxide (end product) released due to cellular respiration by the humans enters the atmosphere and is absorbed by the plants which become a reactant in photosynthesis.
Oxygen (end product) released due to photosynthesis by plants enters the atmosphere and is inhaled by human beings and becomes a reactant in cellular respiration.
