Q. No.Communication junctions found at some fusion points that allow the cardiac muscle cells to contract as a unit are called as:
1. Intercalated discs
2. Sarcolemma
3. Nodes of Ranvier
4. Motor end plates
1. Intercalated discs
2. Sarcolemma
3. Nodes of Ranvier
4. Motor end plates
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Apart from the neuron, the neural tissue in the body is also made up of:
| 1. | Neuroglial cells | 2. | Dendritic cells |
| 3. | Myoepithelium | 4. | CD4 cells |
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The dorsal sclerites in Periplaneta americana are called as:
| 1. | Sternites | 2. | Tergites |
| 3. | Pleurites | 4. | Arthroidal membranes |
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The tegmina in Periplaneta americana are:
| 1. | Mesothoracic forewings not used in flight |
| 2. | Mesothoracic forewings used in flight |
| 3. | Metathoracic hindwings not used in flight |
| 4. | Metathoracic hindwings used in flight |
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The genital pouch in the female cockroach does not have:
1. Gonopore
2. Phallomeres
3. Collateral glands opening
4. Spermethecal pores
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Anal cerci in Periplaneta americana:
| 1. | are present in the 9th segment in both sexes |
| 2. | are present only in males |
| 3. | are present in the 10th segment in both sexes |
| 4. | are present only in females |
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In the given diagram of alimentary canal of cockroach, A,B, C and D respectively are:
| 1. | Gizzard, Crop, Hepatic cecae and Malpighian tubules |
| 2. | Gizzard, Crop, Malpighian tubules and Hepatic cecae |
| 3. | Crop, Gizzard, Hepatic cecae and Malpighian tubules |
| 4. | Crop, Gizzard, Malpighian tubules and Hepatic cecae |
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Ommatidia are:
1. simple eyes of cockroach
2. compound eyes of cockroach
3. subunits of compound eyes in cockroach
4. subunits of simple eyes in cockroach
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Which of the following is not a part of male cockroach reproductive system?
1. Phallic gland
2. Collaterial gland
3. Mushroom gland
4. Phallomeres
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