Question

What is taking place at 6000m and below? Where do organisms get their energy from?

Answer 1

think about what kind of organisms can live down there, and what posible energy sources there are. you have the black smokers, do they host specific organisms? what about the ocean floor?

Answer 2

umm those volcanic hot lava things coming up from the core?

Answer 3

lol i fail

Answer 4

yup.

also think about what is happening in the ocean layers above the zone you want to know about.
(there is a great citation from 'house MD' that could help you here :D )

Answer 5

okay so what is taking place 6000 meters bellow is techtonic plate movement

Answer 6

and organisms get their energy from heat?

Answer 7

was i at least partly right?

Answer 8

nah. water is 4°C. there is no light. tectonic plate movement is a fast as you growing a fingernail, and definitely not warm :)

black smokers are underwater volcanos, kinda. and they host sulfur bacteria, which possibly serve as the basic step on the food ladder.

what happens, now, at the higher zones where creatures live?

Answer 9

okay so that answers first part

Answer 10

sunlight?

Answer 11

photosyntheis

Answer 12

correct. but the thing I mean is so basic that you maybe won't get it ^^

where creatures live, creatures die. what happens with the carcasses?

Answer 13

sink....

Answer 14

get eaten

Answer 15

decompose

Answer 16

lol thanks for the help btw

Answer 17

very good. so, in parts, THEY SINK. this is an effect called 'marine snow'. detriments sink until they reach the ocean floor, where they can serve the organisms that live down there.

to summarize: we have bacterial colonies around black smokers, and organisms feeding on carrion. and, of course, predators feeding on those.

all in all, we know almost nothing bout the ocean down there. but it is estimated that because of the hostile environment (high pressure / no light / almost no food), there is only very little biodiversity

Answer 18

wow, you know your stuff man

Answer 19

thanx :-)

anything else you wanna know?

Answer 20

umm yeah yes please!

Answer 21

From the table in Figure 4-4, select at least three organisms from the Intertidal Zone and describe how they might interact.

Answer 22

same diagram

Answer 23

okay. first, tell me where the intertidal zone is.

Answer 24

sea shore.....right????????

Answer 25

that is a scientifically devastating statement :)

but technically, you're almost right. the intertidal zone is everything 'between the tides'. this means, that it is underwater at high tide and above water at low tide.

can you imagine what that means for organisms living there?

Answer 26

ummm not particularly

Answer 27

i kinda really suck at this

Answer 28

oh

Answer 29

i know

Answer 30

its how the ocean churns water up from the bottom to oxidise it and minerals etc

Answer 31

no?

Answer 32

nah you actually don't suck :-)

imagine that you're a seashell that lives in the rocks of a coastline at the ocean. what happens to you? is the water, or isn't there? what can the water do to you? is the water always salty, or is it sweet sometimes maybe?

Answer 33

think daily problems, not chemical extraordinaries :-) there are waves. what can they do to you?

Answer 34

low tides?

Answer 35

the answer I wanna hear is: they can F*CKIN CRUSH YOU TO DEATH. :-)

that's why you want to make you shell as hard as possible. which they do, accidentally ^^

Answer 36

okay

Answer 37

i thought the sheells were like specifically made to withsatnd it lol

Answer 38

nothing is 'made specifically' for anything :-) creatures adapt, that's what drives evolution, son. :D

okay, I really have to go soon, so I'm gonna give you a few infos on what the organisms have to deal in the intertidal zone.

- they is water some times, but not always. organisms have to adapt to water AND air. you mustn't dry out during sun hours, you mustn't dry out due to salty water sucking you dry.

- sometimes, there is rain instead of salty ocean water around you. you mustn't explode from the sudden osmotic difference.

- sometimes, it's hot in the sun, sometimes, it's cold....you see where I'm getting at.

Answer 39

thanks

Answer 40

heaps

Answer 41

seriously

Answer 42

if you're talking species interaction, then I don't know the three species you wanna pick, but usually, species here compete for space and food.

Answer 43

right

Answer 44

I just found out that the wikipedia article on the subject is pretty good. have a read here.

http://en.wikipedia.org/wiki/Intertidal_ecology#Species_interactions

Answer 45

and good night :-)

Answer 46

THANK YOU!

Answer 47

@PRAETORIAN.10 Around deep sea vents extremely hot gases are released and cause the water temp to be boiling, even in the deepest parts of the ocean. There are Archaea species that are autotrophs and use sources other than light for the energy.