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.
Hi! The most reasonable answer is a,d,b,c.
C. Low.
Green. <--- Pun ignore the green part
Answer:
B
Explanation:
Without a host, they will die
Because they all want each other to take orders from one another
