One of the jobs of lipids is to act as chemical messengers. This job is particularly important for the function of the A. heart.
B. brain.
C. lungs.
D. stomach.

Which statement names a physical property of wood? wood does not rustwood can burnwood can rotwood is softer than coal

Crossing over is a method of (blank)?

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.