Answer:
Extrinsic regulatory mechanisms are external and depend on the firing of some factor outside the population itself. Among them are interspecific competition, food and space restrictions, very strong climatic variations, weathering and inharmonious relationships with other populations (parasitism and predatism).
Good examples of interspecific competition appear when rabbits, caves, rats compete for the same plant, or different fish and birds, such as the heron, vie for the same species of smaller fish. This is because these different species keep their populations in the same ecological niche. Competition is often so strong that some species eventually, as one example of an extrinsic homeostatic mechanism overriding an intrinsic homeostatic process is their disappearance or migration to other regions.
In this competition, the presence of adaptations among individuals in the population that promote better food search, speed, vision, and others can make the difference between elimination and survival.
Answer:D
Explanation:
Because The genetic code by which DNA stores the genetic information. The functional segments of DNA which code for the transfer of genetic information are called genes
I can tell you that it is NOT B.
I got it wrong.
Answer:
Steps recommended to patient for reducing the risk of developing a fungal infection of toenails are regarding to their hygiene, footwear and medications.
Explanation:
- Avoid borrowing someone else's shoes or sharing socks or towels with someone who has toenail fungus.
- An orthotic device can be used to add cushioning and/or control over-pronation, support the longitudinal arch, and reduce stress on the lower leg muscles.
- Wash your feet regularly, and dry them thoroughly when they get wet.
- Keep toenails trimmed, and be sure to disinfect any pedicure tools before using them.
- If there is any toenail fungus, see your foot doctor. The doctor might remove as much of the nail as possible by trimming, filing or dissolving it.
- Medicated nail polish might be prescribed for a localized infection, but a serious infection will likely be treated with a prescription oral antifungal medication
