--%>
Assignment Help - homework help

Excretory systems of arthropod classes

How are excretory systems of the three major arthropod classes comprised?

E

Expert

Verified

In crustaceans, the pair of excretory organs termed as green glands exists. The green glands gather residuals from the blood and other portions of the body. They are joined by ducts to excretory pores situated beneath the base of the antennae and such pores liberate the excretions outside.

In insects small structures termed as malpighian tubules collect wastes from the blood and throw them into the excretory ducts which open in the intestine. In such animals excretions are removed together with feces.

In arachnids, as well malpighian tubules, there are coxal glands situated in the cephalothorax close to the limbs which also participate in excretion.

   Related Questions in Biology

  • Q : Managerial implication - Organizational

    Perception in business situation: 1)     Perception and motivation: perception of the workplace plays a major role in motivation. Suppose an employee is experiencing some unexpected money trouble. Because of her disposition (she is worried) and the sal

    		•
  • Q : Use of condoms-health protection

    Explain, why use of the condoms is not just a contraceptive method but also a health protection behavior?

    		•
  • Q : Fat-soluble and water-soluble vitamins

    Write down the differentiation between fat-soluble and water-soluble vitamins? Why can fat-soluble vitamins cause injury when ingested in high amount?

    		•
  • Q : Group Effectiveness - Organization

    Each of the four group decision techniques has its own set of strengths and weaknesses. The choice of one technique over another will depend on what criteria you want to emphasize and the cost-benefit trade-off. An effective group can be defined as one, which, over extended periods of tim

    		•
  • Q : Short Paper Corporate Governance &

    In FIN 620 each student is required to complete a paper that demonstrates effective communication skills, research competence, and technology fluency. The paper should demonstrate the ability to clearly communicate ideas about financial management in a professional ma

    		•
  • Q : Advantages of Bioethanol ADVANTAGES OF

    ADVANTAGES OF BIOETHANOL: 1. Already in use in the form of gasoline. 2. Produced from waste wood and agricultural wastes hence help in recycling the carbon.

    Q : Passive and active immunization What do

    What do you understand by the passive and active immunization? In accordance with, the duration of protection how do these types of immunization differ?

    		•
  • Q : Why gas is not exchange completed in

    In arthropods why gas is not exchange completed via cutaneous diffusion?

    		•
  • Q : Six Specific Trends of Organizational

    1) Declining productivity and the Japanese threat: the challenge is to reverse declining trends: ensuring better interplay between management approaches and techniques, and employees. 2) Revolution in middle management:  A big cut in the middle management cadre; restructuring and red

    		•
  • Q : Modes of transmission-main

    Write down the modes of transmission, main signs and treatments and symptoms of hepatitis B?

    		•