Another page... really need help ASAP

asked Sep 20, 2020 221k views

4 votes

5.7k points

Please log in or register to add a comment.

7 votes

18) Cell B to cell A because the receptors of cell A are able to recognize the signals from cell B (signal 1). (3)

Gezim answered Sep 25, 2020

by Gezim

6.0k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.6m questions

8.7m answers