4. The purpose of having a light source on a microscope is to allow better viewing.
Answer:
To demonstrate that the inhibition by Janthinobacterium lividum on chytrid found in adult amphibian skin is real, the best experimental design would be take infected amphibians and assign them to two populations. Leave one population alone; inoculate the other with Jl. Measure the rate at which infection proceeds in both populations (option C).
Explanation:
Chytrids -<em>Batrachochytrium dendrobatidis</em>- are a species of pathogenic fungi with affinity for amphibian skin, causing alteration of keratin and damage to the animal body.
The verification that Janthinobacterium lividum is capable of inhibiting amphibian skin chytrids requires the design of an experimental model, the most appropriate being that of an infected amphibian population exposed to the bacteria, while the other (control) is not exposed to J. lividum.
In theory, amphibians in the population exposed to bacteria should decrease chytrid infection, whereas in the normal population the infection would remain the same.
A landform is simply any natural geographic feature that can be found on the earth’s surface, such as valleys, hills, mountains and plateaux. Landforms are all not the same. Some may be very high above sea level and other parts may be deep below sea level. Some of them are made of very hard material and other parts may be made of very soft material. Some landforms are covered by vegetation whiles some are void of any plant at all. Some are very large and others are small. Most important of all, landforms are constantly changing because the factors that form them are in action everyday! - landforms
A relief map is a 2 or 3 dimensional map that shows varying elevations. On 2 dimensional versions shading is done using different colors are used to show varying degrees of elevation for things like mountain ranges. The 3 dimensional maps are the most impressive. Combined with the color a variety of different materials –plastic, rubber etc. –are used to display different features like valleys, mountains, rivers. The result is a map on which you can actually see and touch the top of Everest and the floor of Death Valley. - relief map
Answer:
In science, a coefficient is a constant term related to the properties of a product. In chemistry, when you see a number in front of a chemical like 2H2o, you're looking at the coefficient.