Do small insects have brains and organs?
Answers:
Insects have very very basic gastric and neural systems. I have pasted the info below from a helpful insect website for your perusal. Hope you can make sense of their babble!
An insect's internal organs are largely innervated by a stomodaeal (or stomatogastric) nervous system. A pair of frontal nerves arising near the base of the tritocerebrum link the brain with a frontal ganglion (unpaired) on the anterior wall of the esophagus. This ganglion innervates the pharynx and muscles associated with swallowing. A recurrent nerve along the anterio-dorsal surface of the foregut connects the frontal ganglion with a hypocerebral ganglion that innervates the heart, corpora cardiaca, and portions of the foregut. Gastric nerves arising from the hypocerebral ganglion run posteriorly to ingluvial ganglia (paired) in the abdomen that innervate the hind gut.
In comparison to vertebrates, an insect's nervous system is far more de-centralized. Most overt behavior (e.g. feeding, locomotion, mating, etc.) is integrated and controlled by segmental ganglia instead of the brain. In some cases, the brain may stimulate or inhibit activity in segmental ganglia but these signals are not essential for survival. Indeed, a headless insect may survive for days or weeks (until it dies of starvation or dehydration) as long as the neck is sealed to prevent loss of blood!
Yes
No they have tiny little computer chips and tiny little batteries.
Of course they do.
No, they are remotely controlled by me.
Yes they do.They must have brains because the brain controls the whole body.And they also must have organs to digest food and reproductive organs.
I Know They All Have Brains Buts as Far As Organs Go Not Sure I Know A Few Who Have Guitars and a Few Drum Sets
you will have to go to your doctor and find out maybe a scan should let you no? lol
yea maybe bigger than yours
i think so but some may not
no
Of course they do. I don't understand the point of this question. We should ask the same thing about you..no offense. But if an insect is born, eats, can create another one, annoy human being..why wouldn't it have brain & organs?
My brother does.
I remember dissecting a worm in biology and was amazed to see that they have 6 hearts.
Insects are too small to have brains. The 'brain' is actually cerebral ganglia (a ganglion is a mass of tissue containing the dendrites and cell bodies of nerve cells). So they really use a central nervous system, instead of what we use, for brains.
You'll be pleased to learn that they do have a heart (although fairly different to our own), and other organs and parts such as stomach, intestine, rectum and anus.
no they don't.
yupz!
yes!!!! u see even u have one
Yes, they do. Did you know that if you take the head off a cockroach, it will continue to live? It can live for a few days, before starving to death! Where are its "brains"? In it's backside! :)
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