Advertisement

Annual migration does not occur in the case of

  • salmon

  • siberian crane

  • salamander

  • salamander


C.

salamander

Salamonder is semiterrestrial lizard-like tailed amphibian lives under stones, logs and inside crevices. They show hibernation.
Salmon anadromous i.e., they spend their adult lives at sea but return to fresh water to spawn.  The pacific species is legendary after migrating downstream as a smolt a sockeye salmon ranges many hundreds of miles over the pacific for nearly four year and than returns to spawn in the head waters of its parent stream.
Migration tern travels about 1100 miles during winter and return back during summer.

484 Views

Advertisement

Alexander Von Humbolt described for the first time

  • Ecological Biodiversity

  • Laws of limiting factor

  • Species area relationships

  • Species area relationships


Asymptote in a logistic growth curve is obtained when

  • The value of 'r' approaches zero

  • K = N

  • K > N

  • K > N


The amnion of mammalian embryo is derived from

  • ectoderm and mesoderm

  • endoderm and mesoderm

  • ectoderm and endoderm

  • mesoderm and trophoblast


Mycorrhizae are the example of

  • Fungistasis

  • Amensalism

  • Antibiosis

  • Antibiosis


First 8 9 10 Last
Advertisement