Biology Questions and Answers

Biology Questions and Answers

algae or cyanobacteria that make

organic material fabsorb water with thor the fungi andeir help; nitrifyin (^) g
bacteria of the genus Rhizobium that
associated to lnitrogen to these plants.eguminous plants offer

14. What is commensalism?

Commensalism is the ecological
interactionbenefits whil in which one individe the other is neitherual
benefited nor harmed. Commensalism is
a harmonious (interaction, since npositive)one of the ecological
participants is harmed. An example of
commensalismthat live in the skin a is the numerous bacteriand in the digestive
tube of humans without being
pathogenic or beneficial. They areinnocuous bacteria living in
commensalism with humans.

15. What benefits can
    commensalism offer to a
    species?

Commensalism may involve obtainment

of food (for exambacteria of the human gut), shelter orple, the innocuous (^)
support (epiphytes on trees) and
transportation (por birds). The commollen carried ensalism thatby insects
involves obtainment of shelter is also
called inquilinism.

16. What are some examples
    of interspecific competition?

Examples of interspecific competition

are: the dispute amworms, flies and microorong vulturganismses, (^) for
carrion and the competition between
snakes and eagles for rodents.

17. What is parasitism?
    Parasitismwhich a being lives at th is the ecological interactione expense of in

another. cause immediate death of the host sinceThe parasite often does not (^)
it needs the host alive to survive.
Parasitism(negative) inters is an inharmopecific ecologicalnious (^)
interaction,participant benefit the other is harmed. since although one

18. What are some examples
    of parasitism?
    Classicalhumans ( examples arhost), like the the parasites oe trypanosome f

that causes Cvirus (AIDS), the bacteria that causeshagas’ disease, the HIV (^)
tuberculosis, the schistosome that
causes schistosomiasis,etc. Other examples are the hookworms,: tree (host)
and parasitic helminths (parasite), dog
(host) and lice (and tick (parasite), eparasite),tc. cattle (host)

19. What is predatism?
    Predatismwhich one individual mutilates is the ecological interaction i or kills n
    another to get food. Predatism is an
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