The answer is: A decrease in the number of Trees
Woodpeckers are known for their use of finding food sources on the trucks of trees. They are also popularly own for beating their beaks against a tree trunk in order to provide vibrations and communicate with other woodpeckers.
Contrary to popular belief, they do not eat wood, but trees as a whole form an important part of their habitat.
Hence, the deforestation, cutting down of trees and urbanization can all lead to the decreasing number of woodpeckers in the ecosystem.
Since the early 20th Century two species of American woodpeckers are already considered extinct.
Non carbohydrates refers to those food which are not carbohydrates, which means that, these food do not supply energy and one can not possibly grow fat by eating them too much. Examples of non carbohydrate foods are egg, meat, fish, poultry, etc.
Non carbohydrates foods usually play other roles in the human system other than providing energy.
The correct answer of the given question above would be option A. The statement that is true of modern cell theory is that, a<span>s technology improves, so will our understanding of cells. More improvement in the technology would lead to more discoveries and also would correct other information that has been done in the past for improvement. Hope this answer helps.</span>
<span>The three essential principles of test construction are listed below:
I. Standardization
II. Reliability
III. Validity
</span>Standardization- To standardize a test means that test is given to a large, representative sample of people, in order to establish the norms that future test takers are compared against (using a normal distribution)
Reliability - This principle requires that a test must produce reliable, consistent results when it is repeated. The reliability of a test can be verified using the test-retest method or the split-half method.
Validity - This refers to the ability of a test to measure what it was designed to measure.
The post mortem interval of a body enclosed in a plastic bag could be best estimated by the insects found in the body, in that case forensic science need to listen to what those little creatures have to say, insects could tell if the body has been moved from the crime scene, how long it´s been in an specific place, and how long it´s been since death until found, every group of insects can tell something different, from worms, arachnids to flyes, each one of them has a time to get into the body, so it could tell you for how long it´s been dead.
