<span>Clay, sand, and silt</span>
Early cleavage divisions in most embryos are also rapid. One reason for this is that cleaving cells have a modified cell cycle, in which the two gap phases, G1 and G2 are completely omitted, and the cells cycle rapidly between M and S phases. In addition, because the major cytoskeletal systems of the cells are largely devoted to mitosis (microtubules) and cytokinesis (microfilaments) during rapid cleavage division, there is typically an antagonism between periods of rapid cell division and cell movement. Thus as the embryo approaches gastrulation, there is a tremendous slowing in the rate of division (note the slope of the curve at the right).
Comparative and experimental investigations are two of three scientific investigations, the other is descriptive investigations.
--hope this helps--
<u>Explanation:</u>
Remember, an Estuary is a term used to refer to an enclosed coastal body of slightly salty water having one or several streams or rivers flowing into it.
Found in an estuary are Nutrients (such as from decayed plants and animals) which are then released or transferred into an estuary. While the active life-forms in an estuary benefit from these nutrients during their lifetime after which when they die they become nutrients themselves.
The first one since your doing on the whole neighborhood and not just that one location. You need find the average soil quality and so you need to sample 10 different locations in that neighborhood.
