A dose of a toxicant that kills 50% of the exposed organism is called_________________?

Related Mcqs:

The type of diapause which occur in winter is________________?

A. Hibernation B. Aestivation C. Stravation D. Dormancy...

Insect body divided into external grooves called Sutures__________________?

A. Sutures B. Somites C. Sclerite D. Acron...

Some insects which are used as bio control agents for used control is called________________?

A. Entomophagous parasites B. Zoophagous parasites C. Phytophagous parasites D. None of the Above...

The haring organs in grasshopper_________________?

A. Johnston’s organ B. Tympanal organ C. Chorodotonal organ D. None of the above...

Mosquitoes, bed bugs are____________________?

A. Permanent Parasite B. Intermitttent Parasite C. transitary Parasite D. Obligate Parasite...