[" 1.The following is correct about Pheretima "],[" (A) Typhlosole - mid dorsal fold of the body wall "],[" (B) Blood glands - produces the blood cells that contain haemoglobin "],[" (C) Clitellar segments - contain forests of Integumentary nephridia "],[" (D) Prostomium-first segment that acts as a wedge to force open cracks in the soil "]

Which of the following statements is correct about excretion in earthworm ? (i) Earth is mainly ureotelic (ii) Septal nephridia, present on both sides of intersegmental septa of segment 15 to the last open into intestine (iii) Integumentary nephridia, attached to lining of body wall of segment 3 to the last, open on the body surface (iv) Different types of nephridia are basicaly similar in structure (v) Nephridia regulate the volume and composition of body fluids.

Following are the statements about prostomium of earthworm . a) It serves as a covering for mouth b) It helps to open cracks in the soil into which it can crawl c) it is one of the sensory structures d) it is the first body segment

Find out the correct statement related with earthworm- (A) Genital openings are present on the dorsal surface (B) Dorsal blood vessels is present on the lateral sides of the body (C) 2 common Indian Earthworm are Lumbricus and pheretima (D) First body segment is clitellum

Match the following and choose the correct answer {:("A.","Hermaphrodite","(i)","Produces blood cells and haemoglobin"),("B.","Direct development","(ii)","Testis and ovary in the same animal"),("C.","Chemoreceptor","(iii)","Larval form absent"),("D.","Blood gland in earthworm","(iv)","Sense of chemical substances"):}

Arrange the following statements in the correct order in which they occur during the formation and removal of urine in human beings. (a) Ureters carry urine to the urinary bladder (b) Wastes dissolved in water is filtered out as urine in the kidneys. (c ) Urine stored in urinary bladder is passed out through the urinary opening at the end of the urethra (d) Blood containing useful and harmful substances reaches the kidneys for filtration (e ) Blood containing useful and harmful substances reaches the kidneys for filtration.

Given below are your statements (A-D) each with one or two balnks. Select the option which ocrrectly fills the blanks in any two statements. (A) Thymus secretes (i) which help in differentiating of ii (B) The adrenal medulla secretes i which stimulates the breakdown of ii to increased the blood glucose concentration during emergensy situations. (C) The Leydig's cells or i present in the intertubular spaces in testis, produce a group of hormones called ii (D) Thyroid gland secretes i and trliodothyronine which contain ii