Animal tissues; morphology and anatomy of cockroach, frog, earthworm.
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Q1 · Structural Organisation in Animals · EASY
Which type of animal tissue is characterized by cells that are tightly packed with little intercellular space and usually arranged in one or more layers?
Q2 · Structural Organisation in Animals · EASY
In cockroach (Periplaneta americana), the blood from sinuses enters the heart through lateral openings called
Q3 · Structural Organisation in Animals · MEDIUM
Areolar connective tissue is found between skin and muscles, around blood vessels and nerves. Which of the following cells present in areolar tissue secretes histamine and heparin?
Q4 · Structural Organisation in Animals · MEDIUM
In frog, oxygenated and deoxygenated blood are kept separate to some extent despite having a three-chambered heart. This partial separation is achieved by
Q5 · Structural Organisation in Animals · HARD
In earthworm, the septa between segments 4/5, 5/6, 6/7, 7/8, and 8/9 are absent. The gizzard (grinding organ) is present in which segment, and what is the specific function of segments 14-16?