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Two cells which are in direct contact can send signal to each other across gap junction. For cells which are not in direct contact, there is a number of ways through which these cells communicate, these basically include: paracrine signalling and endocrine signalling. In paracrine signalling, a cell secrete a chemical substance which have effect on a nearby cell while in endocrine signalling, hormones are released into the circulatory system, which convey them to the target cells.
Answer:
The four primary factors in attraction are proximity, physical attractiveness, similarity, and reciprocal liking. ... The nearer two people are to one another, the more likely they are to develop a relationship.
Explanation:
Myofibrils are composed of long proteins including actin, myosin, and titin, and other proteins that hold them together. These proteins are organized into sections called sarcomeres.
