Microtubules are filamentous intracellular structures that are responsible for various kinds of movements in all eukaryotic cells. Microtubules are involved in nucleic and cell division, organization of intracellular structure, and intracellular transport, as well as ciliary and flagellar motility.
I think the correct answer from the choices listed above is option A. Glacial episodes are an example of a positive feedback. Each glacial period in the Earth is subjected to a positive feedback which makes each period more severe. Hope this answers the question.
Answer:
b & d (not e)
Explanation:
global warming occurs naturally and it is likely increased by humans
They are the same because they have lower divisons
The appendicular skeleton is the group of bones consisting of, and supporting the appendages (arms and legs).
The Clavicle, metatarsals, and tibula are all in the appendicular skeleton.
The vertebrae is the backbone, and is therefore not directly supporting the appendages.
D). Vertebrae is the correct answer
