Difference threshold is a minimum alteration in sensory intensity that is noticeable to an observer and can be coded into neural messages. Different threshold is the lowest level of encouragement that is essential to sense that a modification has happened the difference in the intensity between two stimuli that is necessary to yield a just notable difference also known as JND. The just notable difference depends not only on the intensity of the new stimulus but also on the level of stimulation already present which is the more intense the existing stimulus the larger the change must be to be noticeable.
Answer:
A fixed set of steps and procedures
Viruses have not a nucleus, but they have viral DNA that they can transplant into other healthy cells to infect them.
Answer: (idk if i chose more than 1)
I believe its the Last option (optional A)
Explanation:
it gives structures for reproduction, immune system, hormones, and protection of cells
