#Question id: 7276
#Unit 5. Developmental Biology
The
cells that make up a tetrapod limb arise from three developing tissues:
The
____a______ will provide skeletal precursors to the limb.
The
_____b____ will provide muscle precursors to the limb.
The
_____c____ will provide the skin of the limb.
Which of the following option is correct?
#Question id: 14961
#Unit 8. Inheritance Biology
#Question id: 11294
#Unit 10. Ecological Principles
A small lake has three trophic level – Phytoplankton(autotroph) , Zooplankton (herbivore ) and planktivorous fish ( primary carnivore) . In to this lake Population of some other primary carnivore introduced to study top down effect . What is expected long term consequence of this introduction ?
#Question id: 4972
#Unit 11. Evolution and Behavior
Fossils of Lystrosaurus, a dicynodont therapsid, are most common in parts of modern-day South America, South Africa, Madagascar, India, South Australia, and Antarctica. It apparently lived in arid regions, and was mostly herbivorous. It originated during the mid-Permian period, survived the Permian extinction, and dwindled by the late Triassic, though there is evidence of a relict population in Australia during the Cretaceous. The dicynodonts had two large tusks, extending down from their upper jaws; the tusks were not used for food gathering, and in some species were limited to males. Food was gathered using an otherwise toothless beak. Judging from the fossil record, these pig-sized organisms were the most common mammal-like reptiles of the Permian. Anatomically, what was true of Lystrosaurus?
#Question id: 32399
#Unit 1. Molecules and their Interaction Relevant to Biology