Special property of a persistent insecticide, Biology

Assignment Help:

a) What is the special property of a 'persistent' insecticide?

b) In what ways is 'persistence' (i) a useful property, (ii) a harmful property?

 

(a) A persistent insecticide is chemically stable, i.e. it takes a long time to break down.

(b) (i) This property is useful because the substance will continue to kill insects long after it has been applied.

(ii) 'Persistence' is damaging due to the insecticide lasts long enough to pass up a food chain and become concentrated in the bodies of secondary or tertiary consumers.

 


Related Discussions:- Special property of a persistent insecticide

Oil gas, Composition of oil gas is CH 4 = 25-30%; H 2 = 50-55%; CO = 10-1...

Composition of oil gas is CH 4 = 25-30%; H 2 = 50-55%; CO = 10-12%; CO 2 = 3% It calorific value is 4500-5400 kcl/m 3 . It is used as laboratory gas. Oil gas is prepared b

Show the process of healing abutment, Q. Show the process of Healing abutme...

Q. Show the process of Healing abutment? Healing abutments are therefore not considered ideal. It is for this reason that the definitive abutment, selected at first stage surge

Sociability - qualitative characters, Sociability (Gregariousness) Soc...

Sociability (Gregariousness) Sociability refers to the nature of grouping of individual plants, that is, whether they grow singly, in patches, in colonies or evenly intermixed

Animal food, Domesticated animals provide much of the world's meat products...

Domesticated animals provide much of the world's meat products today, but wildlife still constitutes to be an imp ortant source of food of many rural communities. The International

International codes used for system of binomial nomenclature, Q. Internatio...

Q. International Codes used for system of binomial nomenclature? In 1753 Linnaeus suggested a system of binomial nomenclature where each individual is denoted by two epithets,

Absorption, Absorption The monosaccharides, amino acids and other prod...

Absorption The monosaccharides, amino acids and other products of digestion must be passed on to other tissues to be useful for the organism. The process by which the digested

Similarities in body parts often indicate shared ancestry, Similarities in ...

Similarities in body parts often indicate shared ancestry. Which of the following is true? Structures used for different purposes in different groups can be controlled by the same

What is molecular biology, Molecular Biology Transgenesis: pro-nucl...

Molecular Biology Transgenesis: pro-nuclear injection of isolated gene into fertilised egg cell, cell divides to form embryo, then embryo implanted into surrogate.

What are the main manifestations of leishmaniasis, Q. What are the main man...

Q. What are the main manifestations of leishmaniasis? There are two key forms of leishmaniasis: visceral leishmaniasis and cutaneous leishmaniasis (also known as kala-azar). Th

What are the parts of the female reproductive system, What are the organs t...

What are the organs that are part of the female reproductive system? The organs that comprise the female reproductive system are the ovaries, the Fallopian tubes (or uterine t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd