How is biological control used for battling pests?Question 1Select one:a.It the use of monoculture to eradicate pests.b.It is the use of genetically modified organisms for pest control.c.It is the use of one biological species to reduce pests.d.It is the use of pesticides for battling pests.

. What is biological control? Describe it in relation to natural predation and parasitism.

Predator insects such as wasps, ladybugs, and praying mantises, as well as pathogens, are used to control pests more cheaply and safely than broad-spectrum, synthetic chemicals. This method is called Blank______ control.Multiple choice question.syntheticbiologicalchemicalpathogenic

The best definition of biotechnology isGroup of answer choicesCuring diseases.The development of recombinant DNA technology.The use of living organisms to make desired products.The use of microorganisms in sewage treatment.All of the above.

Bt crops are genetically modified to contain a bacterial gene from Bacillus thuringiensis. What advantage does this gene give to the plant?Provides mineralsProtection from bacteriaProtection from insectsIncreases rate of growth2Which of the following is an advantage of Bt crops?Does not kill pests that drink cell sap rather than consume the plant tissueResistance to the toxin may developKnock-on effect on the food chainMinimises the need for chemical pesticides3What is the best definition for ‘biological control’?Genetically modifying plants to produce toxins against pestsUsing chemical pesticides to control pestsUsing the pests’ own natural predators to control themUsing fertilisers to provide essential minerals to the soil4What is a disadvantage of using inorganic fertilisers?They add essential minerals to the soilThey can be washed away into water systemsThey can kill pestsThey improve plant growth

Humans use pesticidesMultiple Choicebecause, like other organisms, they are competing with other species for food and survival.to maintain yields and protect crops from insect outbreaks.to add nutrients to the soil, guaranteeing larger fruit.because, like other organisms, they are competing with other species for food and survival and to maintain yields and protect crops from insect outbreaks.