Which of the following group of insects can be used get rid of insects in agricu
ID: 92290 • Letter: W
Question
Which of the following group of insects can be used get rid of insects in agriculture? a. Aphids b. Plant bugs c. Parasitoid wasps d. Katydids Which type of spider venom acts by disrupting nerve signals? a. mycetism b. cytotoxins c. ceratoxins. d. neurotoxins Which of the following cues do ticks use to locate their hosts? a. CO_2 b. O_2 c. rapid movement d. odor Which of the following insects has an aquatic nymph stage? a. silverfish b. dragonflies c. mosquito d. b and c e. a and c Spider silk plays which of the following functions? a. dispersal b. rearing young c. mating d. subduing prey e. all of the above Why was the evolution of flight in insects so significant? a. it opened up new habitats that insects could take advantage of b. it allowed insects access to new food sources c. it provided a novel means of escape from predators d. it increases dispersal and mat-finding abilities e. all of the aboveExplanation / Answer
Answer 15. C. Parasitoid wasps. They are parasitoids of various animals, mainly other arthropods. Many of them are considered beneficial to humans because they control populations of agricultural pests.
Answer 16. D. Neurotxins. There are basically two types of venom that have an effect on humans: neurotoxic and cytotoxic (or necrotic) venoms. Neurotoxic venoms work directly on the nervous system. The best known example is the venom of the Black Widow/Redback spiders (Latrodectus species). Necrotic venoms cause damage to the tissues, such as blisters and lesions.
Answer 17. A. CO2. Ticks use CO2 to locate their host.
Answer 18. B. Dragonflies. They have wing pads that gradually increase in size and become functional in the adult stage only after the final moult. The juveniles are largely referred to as nymphs or naiads. These nymphs are sexually immature and are aquatic in habitat and thus possess gills for breathing.
Answer 19. E. All of the above. Spider silk perform all the functions mentioned such as dispersal, reproduction, subduing prey, and rearing young.
Answer 20. E. All of the above.
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