Answer:
<em><u>A. Neither the subjects nor the researchers can bias the results.</u></em>
Explanation:
As described, a double- blind study is one in which the researcher and his study does not know the person receiving the actual treatment.
Researchers can be bias in their studies as they seek to establish and fine tune results in the way the best favors them. A double-blind study helps to bridge this gap to prevent bias that might be introduced into an experimental set up or while interpreting results.
The earth rotates 24 hours.
The sun rotates once every 25 days
Vascular plants is the phloem, (vessal) that transports food and the xylem transports water. Nomvascular plants are small with no vascular system. Which means non vascular plants do not have a phloem or a xylem.
Imagine a very tiny person is walking through the auditory tract, from the ear canal through to the auditory nerve. when that tiny person reaches the cochlea and walks along the basilar membrane, Loud frequency sounds will disturb their walk most at the base of the cochlea, and soft frequency sounds will disturb their walk most at the tip of the cochlea, the cochlea communicates with the middle ear by two holes closed by membranes: the oval window, which limits the base of the vestibular ramp and on which the abutment is attached and the round window that closes the base of the tympanic ramp and which serves as a decompression system.
