The blood of cockroach contains no respiratory pigment. It means that

A. cockroach does not respire.

B. respiration is anaerobic.

C. oxygen goes directly into tissues by diffusion.

D. oxygen goes directly into tissues by intracellular capillary system.

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. Match the epithetial tissue given in column-I with its location given in column-II and choose the correct…
  2. Which of the following statement(s) is/are correct about nervous system of cockroach ?It consists of…
  3. The frog never drinks water but absorbs it through one of its respiratory organ. Identify the organ.
  4. Nervous tissue cells that play several supporting roles but do not transmit impulses are called
  5. Match the types of connective tissue given in column-I with their examples given column-II and choose…
  6. Statement 1 : Cartilage (protein matrix) and bone (calcium matrix) are rigid connective tissue.Statement…
  7. The fibres of which of the following muscles are fusiform and do not show striations
  8. The supportive skeletal structures in the human external ears and in the nose tip are examples of
  9. In cockroach, the testes are present in
  10. Non-ciliated simple columnar epithelium often contains _______, which increase the surface area for…
  11. Three essential components of most neurons are
  12. A student was given a sample of two tissues. He observes the tissues under the microscope and draws…
  13. Epithelial tissue is distinguished from connective tissue, muscular, or nervous tissue by its
  14. Cockroaches are brown or black bodied animals that are included in class _______ of phylum _______.
  15. A student was given a specimen to identify on the basis of the characteristics given below.They are…
  16. In which one of the following preparations, cell junctions come across most frequently ?
  17. Statement 1 : Intercalated discs are important regions of cardiac muscle cells.Statement 2 : Intercalated…
  18. Identify figures-I and II. Figure I Figure II
  19. The following figures A, B and C are types of muscle tissue. Identify A, B and C.
  20. What external changes are visible after the last moult of a cockroach nymph?
  21. Which of the following type of cell junction is not found in animal tissues ?
  22. Find the incorrectly matched pair.
  23. Which one of the following pairs of structures distinguishes a nerve cell from other types of cell ?
  24. The intercellular material of the given figure is solid and resists compression. Identify the figure…
  25. Match the description given in column I with their examples given in column II and choose the correct…
  26. Which of the following statements regarding frog is not correct?
  27. Hair present in the skin are
  28. Which of the following statements is not correct regarding neural tissue ?
  29. Which of the following is involved in the production of new blood cells ?
  30. Choose the correct sequence of alimentary canal of Cockroach