Agricultural Entomology - Study Mode

[#351] Following neurotransmitter stimulate adepokinetic hormone secretion
Correct Answer

(C) Octopamine

Explanation

Solution: Neurotransmitter that stimulates adepokinetic hormone secretion is Octopamine. Octopamine is highly concentrated in neurones of several invertebrate species. Unlike in mammals, octopaminergic neurones in invertebrates are spatially separated from catecholaminergic neurons. Adipokinetic hormones (AKHs) are metabolic neuropeptides, mediating mobilization of energy substrates in many insects.

[#352] Adhesive or gluey substance is produced from
Correct Answer

(B) Accessory glands

Explanation

Solution: Adhesive or gluey substance is produced from Accessory glands. The insect male accessory gland (MAG) is an internal reproductive organ responsible for the synthesis and secretion of seminal fluid components, which play a pivotal role in the male reproductive strategy. In many species of insects, the effective ejaculation of the MAG products is essential for male reproduction. Adhesive, also known as glue, cement, mucilage, or paste, is any non-metallic substance applied to one or both surfaces of two separate items that binds them together and resists their separation.

[#353] Arctidal family belong to
Correct Answer

(A) Red hairy caterpiller

[#354] Nodus wing as present in the order
Correct Answer

(D) Odonata

Explanation

Solution: Nodus wing is present in the order Odonata. Odonata is an order of flying insects that includes the dragonflies and damselflies. Odonata and their ancestors come from one of the oldest winged insect groups. The smallest living dragonfly is Nannophya pygmaea from east Asia, with a body length of 15 mm and a wing span of 20 mm. The smallest damselflies are species of the genus Agriocnemis with a wing span of only 17 - 18 mm.

[#355] In insect nervous system which ganglia controls the peristaltic movement?
Correct Answer

(A) Ingluvial ganglia

Explanation

Solution: In insect nervous system Ingluvial ganglia control the peristaltic movement. The ingluvial ganglion, a major component of the stomatogastric nervous system, is known to innervate the foregut and anterior midgut. Ganglion performs many different functions and forms very suitable material for analysis of the interplay between nervous and endocrine functions. A ganglion is a dense mass of nerve cells that are used to control muscles or process input from the insect's senses. The subesophageal ganglion is located in an insect's head capsule and positioned below the oesophagus.