The figure below shows a very simplified interaction of energy flow or a northern hardwood forest where an invasive earthworm has become part of the system. Earthworms are powerful ecological engineers. They alter the physical properties of soil that change soil moisture, nutrient availability and soil structure. The figure below depicts the activity of the invasive earthworm changes the soil structure and soil environment in a way that has a direct negative effect on fungi and microbial decomposers. Using this figure, please select the best answers for the blanks in the following paragraph. Primary Producers IT [Select] Fungi and microbe decomposers [Select] Non-native earthworms Soil insects Based on this figure, if earthworms were removed from this system there would be an [Select] in net primary production leading to a/an Salamanders in the biomass available for decomposition and a/an in the populations of salamanders. When earthworms are present the there is an indirect decrease in plant productively. Decreased plant productivity would cause an/a [Select] on biomass available for earthworms.

A contaminated field has been seeded with plants that you are told have the ability to absorb toxic metals from the soil. This is an example of a chemical method physical method bioremediation measure gasification approach phytoremediation approach

Discuss the following prompt:     In this experiment, we are looking to see how much different types of soil will affect the time it takes for pinto Bean seedlings to germinate out of the ground. The scientific name of a pinto bean is Phaseolus vulgaris. Pinto beans are kind of beans people usually eating, and people commonly use pinto beans in many dishes, such as rice and pasta. Planting pinto beans need many necessary factors, however, I think the type of soil is the most important one to grow it faster. Pinto beans are kind of plants can grow in dark and dry area, so even in dark (less light), they can grow as well. The goal is to determine that soils have different characteristics that can help or hurt plant growth.       In order to discover the effects soils have on plant growth, three different soil samples will be used in a controlled study. The samples will vary in consistency, texture, color, location, moisture, and contact with human life to ensure that the samples are…

Prepare a summary of this article without distorting the message it wanted to convey For farmers, pesticides save labor and generally provide a higher yield: they can mean the difference between saving a crop and losing it to disease. Some farmers, especially those who grow produce at a smaller scale, use pesticides sparingly. For example, fruit trees are susceptible to disease in northeastern regions, especially at the blossom stage. An apple or peach grower may spray their fruit trees with a fungicide once in the spring to ensure that the fruit sets, but use no further chemicals for the rest of the season. For many large row crop farmers, on the other hand, regular pesticide use is as much a part of farming as planting seeds. Spraying Roundup on a field of corn genetically engineered to withstand the chemical kills! the weeds without affecting the corn. In comparison to mechanically weeding hundreds or thousands of acres, using pesticides is a game-changer. Some farmers spray their…

Read the article “Food and Climate”  by clicking this link below http://klimat.czn.uj.edu.pl/enid/2__The_climate_change_issue/-_climate_change_effects_on_plants_266.html After reading the article Food and Climate, share your thoughts about the impact climate change may have on the farming community in Ontario with this question: What role do you play in preserving the diversity of plants throughout the world?

Write a true statement about green house effect.

The rate of decompostion of detritus is affected by the abiotic factors like availability of oxygen,PH of the soil substratum,temperature etc.Discuss.

Soils & Erosion 1.Describe the relationship between soil particle size and important soil characteristics (i.e., drainage andaeration). 2.What soil horizons contain the most nutrients? Why? 3.Describe the various kinds of living organisms that make up the soil community & how they interacttogether. Briefly indicate the role(s) ofeach.

Which of the following organisms improves nitrogen status in legumes? Select one: a. Nitrate reductase b. Rhizobium c. Glutathione d. Mycorrhizae e. Pseudomonas

Based on the chart, [blank] and [blank] are root feeders that consume plant roots.