Spirulina is a type of cyanobacteria. The cyanobacteria are a type of bacteria that have pigments that allow them to photosynthesize. Which organelle allows a plant to photosynthesize?
Answer:
C) Both are waves of energy, but ultraviolet waves cannot be seen.
Explanation:
Both visible light and ultraviolet are two manifestations of the same thing: electromagnetic radiation (which is, basically, energy in one of its forms). They both travel empty space as waves, but visible light has a longer wavelength, which means that the distance between succesive peaks of the wave is larger than that of ultraviolet radiation. Visible light just happens to have a wavelength in the range our eyes are capable of seeing, but ultraviolet has a shorter wavelength than that, therefore we cannot see it.
The Geologic time scale makes it easier to see the age of rock layers
I also believe it is C.
All of these organs, skin, lymph nodes, white blood cells, and spleen, act to enhance human immunity.
Answer:
it b or d
Explanation:
that is the most important for scientistes to study
b tells what can be in the fossill or find in the fossill
so i think it b
