Fertilizer runoff causes an increase in the dissolved nutrients of the ecosystem shown in the food web below. This causes the number of phytoplankton to double. How will this most likely affect the other species in this ecosystem?

If excess fertilizer is mixed with the water,it causes algal bloom as the number of phytoplankton increases at the initial stage due to intake of large amount of nutrients that are obtained from the fertilizers.

Explanation:

The nutrients that are mainly found in fertilizer are nitrogen and phosphorus that mainly helps for growth and development of plants.Fertilizers that are applied in the agricultural field are rich in nutrients and minerals that enters into the water stream through runoff and disturbs aquatic environment by reducing the oxygen content in the water due to algal bloom,emits odour and gas in the air,release toxic substance that kills many aquatic organisms,decrease water quality,increase level of pathogen that creates life threatening diseases etc.

The shrimp population will increase which will cause an increase in the squid population.

Explanation:

a. the production of carbon dioxide through the process of photosynthesis

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.