What is another name for the centrosomes?

If someone could do the first couple, just so i can see how it's done that would be great! 20 points. complete a dichotomous key for the 10 leaves on the common leaves sheet. the chart provided here allows for 11 pairs of statements. depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination

Describe characteristics of a good respitory surface