Or is it all intstinct and if so what controls there decision making process?
2006-07-08 14:34:22 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Ganglia is nervous ssystem but reactions like escape or find food or mate must come from a thought process they are making decision to run or to attack so i belive they must have a brain
2006-07-08 14:44:33 · update #1
O and where can i see a picture of a ant brain?
2006-07-08 14:45:16 · update #2
Jack kiss my A$$ if you cant get it like everyone else than go answer a question on how to be an anal ahole! Im sure youll get best answer for it!
2006-07-08 14:46:28 · update #3
yes.
2006-07-08 14:36:37 · answer #1 · answered by agfreak90 4 · 1⤊ 2⤋
Insects and arachnids, like all other arthropods, possess a distributed nervous system, ie: a string of ganglia (which are clumps of neuronal cell bodies) along their ventral side... What this means is that, In contrast to higher organisms, they do not have a centralized nervous system that processes all functions and tasks of the body, but rather, the ganglion that is closest to each limb is responsible for the activities of that limb, for example. The ganglion associated with the head is the "cerebral ganglion," but this ganglion is not responsible for any type of "decision making" as would a formal brain in a more evolutionarily-developed organism. From what we know about the vertebrate brain, most thought processes (ie: decision making, etc) seem to be derived from the cortex. As insects do not possess such a developed brain, their behavior is not a result of "decision making," but is more likely to be a result of instinct and responses to chemical cues from the environment.
2006-07-08 22:34:16 · answer #2 · answered by Girl Biologist 2 · 0⤊ 0⤋
Yes, but the brains of insects are very small. The size of the brain varies from one species to another, and sometimes it even varies within the same species from one race to another.
2006-07-08 21:43:02 · answer #3 · answered by David S 5 · 0⤊ 0⤋
They do have brains, but they are very small. They probably don't think about much aside from basics like finding food, dealing with danger, mating, etc.
2006-07-08 21:37:42 · answer #4 · answered by foofoo19472 3 · 0⤊ 0⤋
Well, physiologically, yes, the vast majority of creatures in the animal kingdom have a brain.
2006-07-08 21:39:50 · answer #5 · answered by G_Wheely 2 · 0⤊ 0⤋
They have ganglions.A mass of concentrated nerve endings.This ganglion acts as the brain.But they do not have a brain like we do.
2006-07-08 21:39:42 · answer #6 · answered by karthikeyan 3 · 0⤊ 0⤋
Yes, in fact jumping spiders are uncanny in their planning and reasoning ability. They will plan out a route to their prey and stalk them. It's quite interesting. You can read about it on the attached link.
2006-07-08 21:40:11 · answer #7 · answered by Coffee and Beer 1 · 0⤊ 0⤋
first of all, use a spell check next time & watch out how you use the word 'there'. there are three in use: their (possession), there (direction) and they're (contraction). second, most people would love to think insects & aracnids haven't any brains. it makes it a mindless thing for us to step on them or eradicate them according to our whim. yes, my dear, they have brains. they might be way smaller than ours but i'll bet you next week's pot roast they use theirs more wisely than we do. i think all humans should have 'jack' given as our middle names since we all know JACK.
2006-07-08 21:44:41 · answer #8 · answered by blackjack432001 6 · 0⤊ 0⤋
Bigger brains than most of the idiots that ask questions here (I am not referring to you)
2006-07-08 21:38:08 · answer #9 · answered by DarkStar 2 · 0⤊ 0⤋
ganglion -- a mass of nerve endings that control basic functions
2006-07-08 21:37:31 · answer #10 · answered by letmesurpriseu 4 · 0⤊ 0⤋
must have cause they are always in my house
2006-07-08 21:40:19 · answer #11 · answered by likeskansas 5 · 0⤊ 0⤋