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5

No, its not xylem. Bamboo is a grass, and the stem (culm) of many grasses are hollow in the middle (see e.g. Grass Structures from Oregon state for some more info). The exact reason for why Bamboo have hollow stems is most likely due to evolutionary contingencies. However, from a mechanical stability point of view, a hollow stem is much more rigid and ...


3

First thing to note is that the absorption spectrum of chlorophyll A and chlorophyll B is similar but not the same. The reason for the appearance of absorption spectra is because the light is composed of photons of light. Different photon has different oscillation frequency and energy. The essence of Chlorophyll absorption is absorbing photons. After ...


2

Lets start with the absorption spectrum first (image from the Wikipedia page in chlorophyll): What you see in the figure is the absorption of light thoughout the visible spectrum by chlorophyll a (blue) and b (red). The higher the peaks get, the higher the absorption is. What we can see, is that chlorophyll absorbs light roughly until 500 nanometers (nm) ...


2

Mold can grow in Extreme environments: they can live in very low water activity level, sometimes as lower as 0.71, live in refrigerator temperatures, these characteristics make it difficult to kill them thoroughly. You can search "paper deterioration" in Google or library, then you can find lots article about this. 1) Causes Foxing and other white, fluffy ...


2

Simple answer is no: $Ants \neq Aphids$ However, they could be used as evidence that aphids are there depending on the reliability of the coexistence. Ants and aphids are independent entities and do not rely on each other so can exist in non-overlapping populations. Applying this idea to the correct species of ant and aphid is, of course, important for it ...


2

Yes. Freezing would practically stop all biochemical reactions. Household freezer can maintain -15⁰C so that would work. However, freezing also damages the cells if cryoprotectants are not used. But I guess that is not your concern.



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