Which of the following proteins bind with dorsal protein and sequester in inactivated form and to prevent ventralizes embryo cell?

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#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

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#Question id: 12126

#Unit 10. Ecological Principles

Which of the following describes a successional event in which one organism makes the environment more suitable for another organism?

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#Question id: 15874

#Unit 12. Applied Biology

Callus culture show numerical chromosomal changes such as;

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#Question id: 4935

#Unit 11. Evolution and Behavior

Which gas was least abundant in Earthʹs early atmosphere, prior to 2 billion years ago?

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#Question id: 23795

#Unit 7. System Physiology – Animal

Correctly match the responses with given cells according their functions;

Cells	Responses
1.Rods, cones and horizontal cells	p. hyperpolarizing potential
2.Bipolar cells	q. depolarizing potential
3.Amacrine cells	r. Either hyperpolarizing or depolarizing potential