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#Question id: 8913


The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. Which of the following most directly favors the evolution of the latter, more radical, kind of metamorphosis?

#Unit 9. Diversity of Life Forms
  1. natural selection of sexually immature forms of insects
  2. changes in the homeobox genes governing early development
  3. the evolution of meiosis
  4. B and C only
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#Question id: 11323

#Unit 10. Ecological Principles

Upwelling zones of high biological productivity are found along the western coasts of the major continents. What causes this upwelling?

TLS Online TPP Program

#Question id: 26925

#Unit 10. Ecological Principles

When two species  A and B are present in aquatic environment, species A is exist in both upper & lower intertidal zone & species B exist in only lower intertidal zone individually. In the presence of species B, A is narrow their niche only in upper intertidal zone. Which species are strong competitors?

TLS Online TPP Program

#Question id: 27664

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is correctly representing the distance between two successive C α Carbon in a peptide chain

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#Question id: 7258

#Unit 5. Developmental Biology

A four-cell embryo normally develops into a blastocyst consisting of trophectoderm (TE) cells on the outside and inner cell mass (ICM) cells inside. The transplantation experiments were done with mouse embryos.

A. If a labeled cell is placed on the outside of a very early embryo, it is likely to form extraembryonic tissues.

B. If a labeled cell is placed on the inside of a very early embryo, it is likely to form embryonic tissues.

According to above observations which of the following statement is true?

TLS Online TPP Program

#Question id: 5930

#General Aptitude

What was the day of the week on 3 October 1992 ?