Biology : Organisms and Populations

Praying mentis is a good example of

• Mullerian mimicry

• Warning colouration

• Social insects

• Social insects

Niche overlap indicates

• active cooperation between two species

• two different parasites on the same host

• sharing of one or more resources between the two species

• sharing of one or more resources between the two species

Annual migration does not occur in the case of

• salmon

• siberian crane

• salamander

• salamander

Mycorrhizae are the example of

• Fungistasis

• Amensalism

• Antibiosis

• Antibiosis

Asymptote in a logistic growth curve is obtained when

• The value of 'r' approaches zero

• K = N

• K > N

• K > N

Alexander Von Humbolt described for the first time

• Ecological Biodiversity

• Laws of limiting factor

• Species area relationships

• Species area relationships

The amnion of mammalian embryo is derived from

• ectoderm and mesoderm

• endoderm and mesoderm

• ectoderm and endoderm

• mesoderm and trophoblast

In a growing population of a country,

• pre-reproductive individuals are more than the reproductive individuals

• reproductive individuals are less than the post-reproductive individuals.

• pre-reproductive individuals are less than the reproductive individuals.

• reproductive and pre-reproductive individuals are equal in number.

Which one of the following population interactions is widely used in medical science for the production of antibiotics?

• Commensalism

• Mutualism

• Amensalism

• Parasitism

Niche is

• all the biological factors in the organism's environment

• the physical space where an organism lives

• the functional role played by the organism where it lives

• the range of temperature that the organism needs to live