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#Question id: 12245

The graph above illustrates a simplified description of the effect of disturbance on species diversity. Which of the following best explains the graph?

#Unit 10. Ecological Principles

Productivity is enhanced at intermediate levels of disturbance.
Stabilizing selection occurs at intermediate levels of disturbance.
The interaction of physical factors and biological competition increases diversity at intermediate levels of disturbance.
Directional selection is enhanced by increased disturbance

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#Question id: 15772

#Unit 5. Developmental Biology

A stem cell capable of producing all the cell types of a lineage is said to be

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#Question id: 5272

#Unit 8. Inheritance Biology

Clever technique that streamlines the identification of auxotrophic mutants is

TLS Online TPP Program

#Question id: 3434

#Unit 11. Evolution and Behavior

type of learning that can occur only during a brief period of early life and results in a behavior that is difficult to modify through later experiences is called

TLS Online TPP Program

#Question id: 19079

#Unit 6. System Physiology – Plant

Pathogen evades plant by penetration of surface layers directly using mechanical pressure or enzymatic attack, some pass through natural openings, such as stomata or lenticels, and others only enter through wounded tissue. Once inside the plant, one of three main attack strategies is deployed specific feature of interaction given;

A) Necrotrophy

B) Biotrophy

C) Hemibiotrophy

i) where the plant cells remain alive throughout infection

ii) where the plant cells are killed in advance of infection

iii) extensive plant tissue damage at initial stages

iv) where the pathogen initially keeps cells alive but at later stages of the infection, kills them

Match the following