TLS Online TPP Program

#Question id: 10230


Closely related species whose populations are sometimes allopatric showing greater morphology similarity but in a sympatric with distinct morphology due to

#SCPH28 | Zoology
  1. Sympatric populations, which would potentially intraspecific competition for resources, show differences in body structures and in the resources they use
  2. Sympatric populations may influenced to dissimilar environmental condition, differences in body structures and in the resources they use
  3. Sympatric populations, which would potentially compete for mate choice, show differences in body structures and in the resources they use
  4. Interspecific competition in this system could change the morphology of competing species of sympatric population
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TLS Online TPP Program

#Question id: 60

#SCPH01 Biochemistry

Which of the following is true for the reaction?

3H2 + N2   2NH3

TLS Online TPP Program

#Question id: 4973

#SCPH28 | Zoology

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.Which of Lystrosaurusʹ features help explain why these organisms fossilized so abundantly?

I. the presence of hard parts, such as tusks

II. its herbivorous diet

III. its persistence across at least two geological eras

IV. its widespread geographic distribution

V. its mixture of reptilian and mammalian features

TLS Online TPP Program

#Question id: 2727

#SCPH05 I Biotechnology

What marks the difference between the solenoid and the zig-zag models of 30 nm fibres?

TLS Online TPP Program

#Question id: 27704

#Research Methodology

“Empirically verifiable observation” is

TLS Online TPP Program

#Question id: 8958

#SCPH28 | Zoology

A student encounters an animal embryo at the eight-cell stage. The four smaller cells that comprise one hemisphere of the embryo seem to be rotated 45 degrees and lie in the grooves between larger, underlying cells (spiral cleavage). If we were to separate these eight cells and attempt to culture them individually, then what is most
likely to happen?