The cells that release heparin and histamines in the blood are:

1. Basophils

2. Mast cells

3. Eosinophils

4. Neutrophils

In cockroach, the formation of ootheca is by the secretions of:

1. Prothoracic glands of male

2. Prothoracic glands of female

3. Colleterial glands of male

4. Colleterial glands of female

Identify the incorrect statement:

1. In both male and female cockroach, 8^th and 9^th tergites are mostly covered by the 7^th

2. Ventrally, the abdomen in cockroach has only 9 sternites  in males and 7 in females

3. In female cockroach, the 7^th sternite along with 8^th and 9^th forms gynatrium

4. the anterior most part of the gynatrium is called the oothecal chamber

What is incorrect regarding Periplaneta americana?

1. Excretion by malpighian tubules

2. Hemolymph delivering oxygen to tissues

3. Paurometabolous development

4. Mosaic vision

The type of cartilage present in the epiglottis, pinna and tip of the nose is:

(1) Elastic

(2) Hyaline

(3) Fibrous

(4) Calcified

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

1. Fat body

2. Urecose glands

3. Nephrocytes

4. None of these

Dense irregular connective tissue is present in:

1. Tendons

2. Ligaments

3. Skin

4. Cartilage

The most abundant and widely distributed tissue in the bodies of complex animals is:

1. Epithelium

2. Connective

3. Muscular

4. Neural

The mouth part of the cockroach shown in the given diagram acts as a/an:

1. Upper lip

2. Tongue

3. Lower lip

4. Uvula

Which type of animal tissue changes the diameter of a blood vessel?

(1) Epithelium

(2) Connective

(3) Muscle

(4) Neural