Under controlled laboratory conditions, you added two microbial species to the s
ID: 98081 • Letter: U
Question
Under controlled laboratory conditions, you added two microbial species to the same nutrient solution. Within one week, only one microbial species remained. This observation relates to - Keystone Species Hypothesis Competitive Exclusion Carrying Capacity Resource Partitioning Dominant Species Hypothesis Three related lizard species are members of a forest community in Norfolk. What enables these related lizard species to co-exist in this forest community? Mutualistic Partnership Resource Sharing Competitive Exclusion Resource Partitioning None of the above The white stripe on the back of an otherwise black skunk is an example of - Misidentification Warning Coloration Mullerian Mimicry Batesian Mimicry Masquerade An example of masquerade is - Snake with red rings Insect resembling a leaf Frog with yellow spots Fish with toxic glands Skunk with white stripe Multiple types of inter-specific interactions occur in a community. Symbiotic relationships do not include - Mutualism Predation Disease Parasitoidism ParasitismExplanation / Answer
1) competitive exclusion
According to the question, within one week only one microbial species remained. This clearly explained that they were competing for the same limiting resource and as a result, one microbial species become dominant over another. Strong interspecific competition between two species can lead to the extinction of one species.
2) Resource partitioning
Because the lizard species are related, there is a possibility that they depend on the same kind of resources. So, the resources of a habitat are separated out by them which ensures their co-existence.
In mutualism partnership, two different species form a beneficial interaction so that they both can survive. They both depend on each other for food, shelter or protection.
3) Warning coloration
Mimicry is an adaptation of acquiring a close external resemblance of an animal, plant or an inanimate object for protection from predators. Warning coloration refers to a bold, distinctive pattern of color found in the organisms. They use this characteristic pattern as a warning or defense against predators.
4) Insect resembling a leaf
Masquerade is also known as background mimicry. It refers to acquire the same physical appearance as the environment.
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