What component of the cell wall helps in growth and development, as well as keeping it strong to defend itself? A. Lignin

B. Pectin

C. Cellulose

D. Steroids

What are the steps of how energy is transformed in plant cells?

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.

How can you tell the difference between rough er from smooth er?