g The authors designed a field experiment to test the hypothesis that competitive interactions between the closely related A. segrei (an introduced species) and A. carolinensis (a native species) would cause a change in the perch height of A. carolinensis. What aspects of the experimental design were used to help rule out potentially confounding variables? Select all that apply.

the answer is 1. photosynthesis. glad to

a covalent bond, specfically triple bond

the cover letter for a job search includes the skills one has for the particular job. including a cover letter is always a good idea, as it describes the ability to perform a task, and the employer can easily fetch the intention of the job you want to do.  

the cover letter is very important to be included in the job search document. hence, i strongly with the statement.