Why do the dissolved nutrients drop in the spring

The dissolved nutrients drop in the spring due to the amount of light in the spring decreases.

Explanation:

... In the early summer water gets warm and the nutrients is removed. The phytoplankton are then brought to a moderate natural development

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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