Practice Questions

TLS Online TPP Program

#Question id: 8961

What does recent evidence from molecular systematics reveal about the relationship between grades and clades?

#9. Diversity of Life Forms

They are one and the same.
There is no relationship.
Some, but not all, grades reflect evolutionary relatedness.
Grades have their basis in, and flow from, clades.

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TLS Online TPP Program

#Question id: 9285

#6. System Physiology – Plant

Non-O2-evolving (anoxygenic) organisms, contain only a single photosystem such as

TLS Online TPP Program

#Question id: 9566

#10. Ecological Principles

Which of the following adaptations helps kangaroo rats conserve water?

TLS Online TPP Program

#Question id: 9567

#10. Ecological Principles

Which part of the electromagnetic spectrum is the photosynthetically active region?

TLS Online TPP Program

#Question id: 9568

#10. Ecological Principles

Which of the following represents a plant adaptation that minimizes water loss in arid environments by increasing the thickness of the boundary layer?

TLS Online TPP Program

#Question id: 9571

#10. Ecological Principles

All homeostatic systems used by organisms to regulate body temperature are described by which of the following?

TLS Online TPP Program

#Question id: 9574

#10. Ecological Principles

What is the prevailing wind direction in equatorial regions affected by the trade winds?