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L04- BIO 120
Making hay (literlly) slide:
Slide 17- a plants a relationship with animals is completely different from the
relationship animals hre with plants, because plants make their own food.
18- having big thin flats is a good thing, for harvesting light and pulling out
Co2 from the air.
19- when the stomta are open, only then can plants phtosynthesize.
20- if aplant is in danger of overheating, it opens its stomata
21-
26- variation in leaf shape
middle on has cut out from the side, and the first leaf has cuts that are deep
called sines. Why does aving a bigger sunis matter? Shedding heat to revent
overheating, its so plants can get rid of extra heat.
28- difference between two types of flows
30- laminar flow also effects animalsthe rabbits ears in the second picture,
interrupt air flow, and so eddies is formed.
33 + 34- most common plants, doing a couple of things to prevent water loss.
Needs no laves, can photosynthesize from stick. But does produce leave, but
they are tiny ( called microphylyy). This is an example of adaptaion, so that
the leaves dont overheat.
35- extreme staretgy: losing leaves entirely. Most cacti do this, have flat pads.
They are not leaves, they are modified stems. They keep a lot of water in
tissue. Plants that grow in areas that are moist dont store water in tissues,
because the ground can store water, as the ground does get moist.
For cacti to store water, they must get it from somewhere. Cactis tend
to have really long roots ( see slide 37)
39- catci has rib like [pleated structure] structure, it expands in diameter. It
is not a rigid cylinder, and so it can hold more water as it can expand.
Therefore, they can absorb a tremenodous amount of water [800L]. way to
remember these: david grundman he and his buddy shot cactis until they
fell over, he shot a couple over, an so stood underneath one and shoot it, but it
fell down [ because it was SO HEAVY from the water] and killed him.
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Document Summary

Slide 17- a plants a relationship with animals is completely different from the relationship animals hre with plants, because plants make their own food. 18- having big thin flats is a good thing, for harvesting light and pulling out. 19- when the stomta are open, only then can plants phtosynthesize. 20- if aplant is in danger of overheating, it opens its stomata. 26- variation in leaf shape middle on has cut out from the side, and the first leaf has cuts that are deep called sines. Shedding heat to revent overheating, its so plants can get rid of extra heat. 30- laminar flow also effects animals the rabbits ears in the second picture, interrupt air flow, and so eddies is formed. 33 + 34- most common plants, doing a couple of things to prevent water loss. But does produce leave, but they are tiny ( called microphylyy). This is an example of adaptaion, so that the leaves don"t overheat.

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