Friday, March 19, 2010
3/19/10 There are no trees in the rainforest (AUDIO!)
That, what, you notice with most the recent flooding a lot of trees will be knocked down because there are no more root support, which is why the tropical rainforest can't support trees. There's, to, the soil's not there, and there's too much wet rain.
Okay, how are musk oxen adapted to life in the tundra?
(student asks about how are there no trees in the rain forest)
They have vines. Right they have very thin trees. Most of the trees are supported with vines. If I can find a picture I'll show you exactly what they look like.
(students continue to question, (teacher) tries to cover herself by saying...)
It's not the kind of trees we think of in the boreal forest. (Boreal forest??? Where did that come from???)
(Student: Wait, but don't vines grow on trees for support?)
No, not these kind of vines.
(class laughing)
These vines..
(Student: How do they grow up if there's nothing to climb?)
They do, vines climb, they can grow all over the place.
(Student: So they don't climb, they just go straight up?)
They do, usually, lot's go side to side, a lot of them grow up and down.
For details you'd have to check with a biologist, I don't have any details on vine growth. It's not like not one of my, um, yeah, I'm not 100% confident in telling you a lot about the vines and trees.
Um, STUDENT?
(Student: So the tropical rainforest, doesn't have any trees?)
It has trees, but it's not the kind of trees that you find in the boreal forest. There's a difference, okay? Alright, let's go!
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|Insect Hibernation|
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How do insects, squirrels, bears, lynxes, wolves adapt to winter?
Essentially, insects hibernate, squirrels and bears sleep most of the time.
(student: That's hibernating.)
Well, it's different, hibernation is a prolonged sleep.
(student: Bears hibernate.)
Um, squirrels and bears sleep most of the time.
(Student: Bears do hibernate.
And lynxes and wolves grow heavy coats.
(Student: Wait, what was...)
Insects hibernate, squirrels and bears sleep most of the time, and lynxes and wolves grow heavy coats. There we go!
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6 comments:
this just made my day
so umm if there are no trees in the rainforest, why do they call it the rainFOREST???
Mrs. Sall is correct as bears do not actually hibernate, but exhibit “winter lethargy”, which is not the same as inactive sleep-like state that some animals experience during the winter. During hibernation, body temperature lowers, while cardiac and respiratory rates slow. Bears only undergo a minor change in overall metabolic processes, whereas a squirrel's body temperature may drop to the freezing point. Although Mrs. Sall may not have provided a thorough explanation of this point, her statement is essentially accurate.
teacher 1 is correct, but at the same time, saying that insects as a whole hibernate is completely inaccurate. Only some insects hibernate. Also, the question doesn't make sense since "insect" is referring to the Insecta class of animals, while "bear, lynx wolf, and squirrel" refer to various genera of the class Mammalia. Great website btw. I wish there was more.
yes it is an excellent site....please keep us posted
Shes right about the trees too. They'll return to the rainforest after they are done exhibiting "winter lethargy"
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