Bissoy.com
Doctors Medicines MCQs Q&A

Which of the following types of mouth parts is possessed by plant parasitic nematodes?

Which of the following types of mouth parts is possessed by plant parasitic nematodes? Correct Answer Protrusible hollow stylet

Protrusible hollow stylet types of mouth parts are possessed by plant parasitic nematodes.
At the head of a plant-parasitic nematode is a hollow mouth spear (like a hypodermic needle) called a stylet. The mouth cavity is armed with a protrusible stylet in the form of a hollow needle, which is used to puncture plants to obtain liquid food.
The nematode uses this stylet to puncture plant cells, withdraw food, and also to secrete protein and metabolites that aid the nematode in parasitizing the plant.

Related Questions

Which genus of nematodes has special types of nurse cell systems which serve as source of continuous supply of nutrients to the nematodes
Given below is a sentence which has been divided into four parts. The first part, which has been marked bold, is fixed in the sequence. The other three parts have been rearranged in the sequence and the four options give possible sequences of the three parts. Choose the option which gives the correct sequence of the rearranged parts. The state has received scanty rainfall/ which has also been explained as the cause of (A)/ floods in other parts of the country (B)/ and many people attribute this to climate change (C)
Six boys A, B, C, D, E and F play a game of cards. Each has a pack of 10 cards. F borrows 2 cards from A and gives away 5 to C who in turn gives 3 to B while B gives 6 to D who passes on 1 to E. Then the number of cards possessed by D and E is equal to the number of cards possessed by
In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. 1. In 2015, the Government of India launched a massive campaign named "Digital India". P. The main aim was to improve access to technology to the people of the country. Q. The government worked on improving internet connectivity. R. It also made sure that it was easily accessible to the remote and rural parts of the country.  S. This was started to make the government services accessible in various parts of the country. 6. One of the initiatives included a plan to connect the rural parts of the country with high-speed internet.
In a motor of 120 machine parts, 5% parts were defective. In another motorof 80 machine parts, 10% parts were defective. For the two motors considered together,the percentage of defective machine parts were
A manufacturing company produces 5 types of chairs in two sizes - Regular" and "Large". The pie charts represent the total number of five types of chairs produced and the table shows the ratio between the number of regular sized and large sized chairs of five types. Type of Chair A B C D E Ration between Number of Regular Size and Large Size Chairs 3 : 2 4 : 5 3 : 1 5 : 3 3 : 8   If the total number of all types of chairs produced is 7200, what is the total number of regular size chairs of all types produced.
In the following question the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the five combinations is correct. 1 - The mayor walked up and down the vestibule of the hotel with his hands under his coat tails, as if he were merely seeking a cooler atmosphere than that of the room he had quitted. P - At length he went back to the door of the dining-room, paused, and found that the songs, toasts, and conversation were proceeding quite satisfactorily without his presence. Q - But there could be no doubt that he was in reality still possessed to the full by the new idea, whatever that might be.   R - The Corporation, private residents, and major and minor tradesmen had, in fact, gone in for comforting beverages to such an extent that they had quite forgotten, not only the Mayor, but all those vast, political, religious, and social differences which they felt necessary to maintain in the daytime, and which separated them like iron grills. S - Seeing this the Mayor took his hat, and when the waiter had helped him on with a thin holland overcoat, went out and stood under the portico. 6 - Very few persons were now in the street; and his eyes, by a sort of attraction, turned and dwelt upon a spot about a hundred yards further down. 
In making decisions about important questions, it is desirable to be able to distinguish between ‘strong’ arguments and ‘weak’ arguments. ‘Strong’ arguments are those, which are both important and directly related to the question. ‘Weak’ arguments are those, which are of minor importance and also may not be directly related to the question or may be related to a trivial aspect of the question. The questions below if followed by two arguments numbered I and II. You have to decide which of the arguments a ‘strong’ argument is and which a ‘weak’ argument is. Statement: Should rotation cropping system be cultivated by all farmers? Arguments: I. Yes, as crop rotation helps in reduction of nematodes, weeds and diseases. II. No, as it requires more equipment for planting of different types of seeds.
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: It may be a chemical substance, biological agent (such as a virus or bacteria), antimicrobial, disinfectant or device used against any pest. B: Although there are benefits to the use of pesticides, there are also drawbacks, such as potential toxicity to humans and other organisms. C: A pesticide is a substance used to kill a pest. D: Pests include insects, plant pathogens, weeds, mollusks, birds, mammals, fish, nematodes (roundworms), and microbes that compete with humans for food, destroy property, spread or are a vector for disease or cause a nuisance.
In a certain code language, eye is called ear, ear is called nose, nose is called hand, hand is called mouth and, mouth is called tongue, then with which of the following would a person use to hold a pen?