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TLS Online TPP Program

#Question id: 5090

Which of the following is a correct description of the fate of the germ layers?

#Unit 5. Developmental Biology

  1. The mesoderm gives rise to the notochord.

  2. The endoderm gives rise to the hair follicles.

  3. The ectoderm gives rise to the liver.

  4. The mesoderm gives rise to the lungs.

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TLS Online TPP Program

#Question id: 12227

#Unit 10. Ecological Principles

During the course of the formation of a parasite/host relationship, a critical first step in this evolution would be
TLS Online TPP Program

#Question id: 32

#Unit 1. Molecules and their Interaction Relevant to Biology

 Humans maintain a nearly constant level of hemoglobin by continually synthesizing and degrading it. This is an example of a(n):
TLS Online TPP Program

#Question id: 4565

#Unit 11. Evolution and Behavior

Darwinʹs mechanism of natural selection required long time spans in order to modify species. From whom did Darwin get the concept of Earthʹs ancient age?
TLS Online TPP Program

#Question id: 15763

#Unit 5. Developmental Biology

The strategy, in which a stem cell and a developmentally committed cell are produced at each division, termed as
A. Asymmetric stem cell division.
B. Symmetric stem cell division
C. Single stem cell asymmetry .
D. Population asymmetry
TLS Online TPP Program

#Question id: 3647

#Unit 3. Fundamental Processes

In the cell cycle: there are four main phases, G1, S, G2 and M phase. S phase is the :