How many Malpighian tubules are present at the junction of midgut and hind gut in cockroach?

So, the correct answer is ‘100-150’

How many Malpighian tubules are present in cockroach?

This paper describes the different regions of the Malpighian tubules and the associated structures (ampulla, midgut, ileum) in the cockroach, Periplaneta americana. There are about 150 tubules in each insect. Each tubule consists of at least three parts.

Where are the Malpighian tubules located in a cockroach?

The excretory organ of cockroach is the malpighian tubules. It is found at the junction of the midgut and hindgut. They lie freely in the haemolymph.

Why is cockroach important in day to day life?

Cockroaches are very important in humans day to day life because cockroaches are professional recyclers. Cockroaches contain protozoa bacteria in their digestive systems. This will help to convert the waste into easily absorbed nutrients. This is the main task for cockroaches in day to day life.

Does cockroach have neurogenic heart?

The heart of a cockroach is neurogenic because it requires a nervous impulse to contract. On the wall of the heart cluster of neurons is present that produces the rhythmic motor output for the heartbeat.

What is the function of Malpighian tubules in cockroach?

In cockroach, the Malpighian tubules absorb nitrogenous waste products from the haemolymph and convert them into uric acid for excretion.

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What is Vestibulum in cockroach?

Vestibulum: It is a space or cavity near the entrance of another structure. For example, vestibule of vagina is the space where both urethra and vagina opens. Gonapophyses: It is an organ present near the anus of female insects which helps in copulation, formation of ootheca and oviposition.

Which type of vision is found in cockroach?

The two types of vision in a cockroach are mosaic vision or apposition and superposition or dull vision.

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