Excretion in cockroach takes place by

(1) nephridium

(2) parotid gland

(3) coxal glands

(4) malphighian tubules

Mark the Incorrect statement

(1) Malpighian tubules of cockroach help in excretion

(2) Fat bodies of cockroach do not help in excretion

(3) Nephrocytes help in excretion

(4) Cockroach has 13 chambered tubular and dorsal heart

Which of the following does not help in excretion in Periplaneta Americana?

1. Fat body

2. Urecose glands

3. Nephrocytes

4. None of these

Mark the incorrect statement regarding the Malpighian tubule in cockroach:

1. It is present at the junction of the midgut and hindgut.

2. It is lined by glandular and ciliated cells.

3. It absorbs uric acid from the hemolymph.

4. It is about 100-150 in number and is a thin yellow filamentous tubule.

Which of the following is correct with respect to cockroach?

a. Internally mesenteron is lined with cuticle

b. In abdomen eight pair of spiracles are present

c. All sperms of seminal vesicle are glued together into spermatophore

d. Malphigian tubules are present at the junction of midgut and hindgut

1. a, b & c

2. a & b

3. b & d

4. b, c & d