ZOO506 Quiz Set 2 by Sir Arslan

ZOO-506 Addition 1 · CURRENT PAPER FILE (2022) · Lion group of zoologist · Sir Arslan · Special instruction

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1. types of head.

• Proganathus • hypoganathus • opisthoganathous

2. Function of cuticula.

• The skeleton of the body, or cuticula as it is called, it supports and protects the soft, living tissues of body.

3. Contact insecticide. certain materials called contact insecticides, which kill insects by contact with their bodies Caused death by entering the spiracles and closing them up, thus producing suffocation.
4. Transmission.

• Transmission is the passing of a pathogen causing communicable disease from an infected host individual or group to a particular individual or group .Regardless of whether the other individual was previously infected

5) Nervous system of insects

• The nervous system of insects is located along the middle line of the body quite near its under surface, As in animals generally, it is composed of cells and fibers. The former are for the most part gathered together in clusters which are called ganglia. Each ganglion is connected to the one in front and the one behind by one or two bundles of nerve fibers which are called commissures. Each consists of numerous fibers which taken together form the means of communication between the different parts of the system. In the head, in front of or above the esophagus, is the largest ganglion of the body, called the brain, produced by the fusion of several ganglia. the wings, legs, muscles and other parts receive their nerve supply A small" sympathetic nerve system" also present, appears to concerned chiefly with the nerve supply of the alimentary canal tracheae

Q6. What is coxa?

• The coxa is the segment that articulates with the body, frequently partly lying in a more or less cup shaped hollow of the latter It may be short or long and is generally freely movable on the body and powerful

Q7. Name of the structure present on thorax and abdomen in insects?

• The thorax has its three segments usually quite clearly marked
• 1-Prothorax (have no wings)
• 2-Mesothorax ( have fore wings)
• 3-Metathorax ( hind wings)
• The first abdominal segment, when seemingly more apart of the thorax than of the abdomen, is called the median segment or ropodeum.
• Than with the second abdominal segment, which in such cases is often slender and gives thereby a semidetached appearance to the rest of the abdomen.

8) cotton disease

• Anthracnose, leaf spots, Cotton Leaf Curl Virus, Boll Rot, Angular Leaf Spot or Bacterial Blight, Root Rot, Verticillium wilt,

Q9. how many antenna in the arthropods?

• They have one pair of antennae on the head.

10) Insects born disease

• Insect-borne diseases are viral and bacterial illnesses from insect (bug) bites.
• mosquitoes are known for spreading the Zika virus, Yellow Fever, and Malaria.
• Lymphatic filariasis (nematode worm): Culex, Anopheles, Aedes species of mosquito.
• Dengue (virus): Aedes species of mosquito.
• Leishmaniasis (protozoan): mainly Phlebotomus species of sandfly.

11) Four general stages of larvae

• Egg

Eggs are laid on plants by the adult female butterfly. These plants will then become the food for the hatching caterpillars. Eggs can be laid from spring, summer or fall. This depends on the species of butterfly. Females lay a lot of eggs at once so that at least some of them survive. Butterfly eggs can be very small.

• Caterpillar: The Feeding Stage

The next stage is the larva. This is also called a caterpillar if the insect is a butterfly or a moth. The job of the caterpillar is to eat and eat and eat. As the caterpillar grows it splits its skin and sheds it about 4 or 5 times. Food eaten at this time is stored and used later as an adult. Caterpillars can grow 100 times their size during this stage. For example, a monarch butterfly egg is the size of a pinhead and the caterpillar that hatches from this tiny egg isn't much bigger. But it will grow up to 2 inches long in several weeks.

• Pupa: The Transition Stage

When the caterpillar is full grown and stops eating, it becomes a pupa. The pupa of butterflies is also called a chrysalis. Depending on the species, the pupa may suspended under a branch, hidden in leaves or buried underground. The pupa of many moths is protected inside a coccoon of silk. This stage can last from a few weeks, a month or even longer. Some species have a pupal stage that lasts for two years. It may look like nothing is going on but big changes are happening inside. Special cells that were present in the larva are now growing rapidly. They will become the legs, wings, eyes and other parts of the adult butterfly. Many of the larva original cells will provide energy for these growing adult cells.

• Adult: The Reproductive Stage

The adult stage is what most people think of when they think of butterflies. They look very different from the larva. The caterpillar has a few tiny eyes, stubby legs and very short antennae. The adults have long legs, long antennae, and compound eyes. They can also fly by using their large and colorful wings. The one thing they can't do is grow. Most adult butterflies