Which option correctly replaces X and Y?
please help

The Miller-Urey experiment resulted in the formation of several X molecules that are the basis for Y.

X: amino acid

Y: proteins

X: protein

Y: organs

X: lipid

Y: cell membranes

X: carbohydrate

Y: sugars

How are the testes and ovaries similar? a. both produce sex cells. b. both connect internal reproductive organs to the exterior. c. both transport sex cells from their site of production. d. both store mature sex cells.

Draw a simple labelled diagram if a collenchyma tissue

What are some of the immune functions of the lymphatic system? a. cleaning red blood cells from the blood and creating lymph fluids b.transporting lymph to the tissues and creating lymph fluids c.removing infectious agents and making white blood cells d.making red blood cells and removing infectious agents