The common elements of all plants and living organisms are:
(select all the true)

A. Nitrogen
B. Hydrogen
C. Sodium
D. Carbon
E. Oxygen

The common elements of all plants and living organisms are: Carbon, Oxygen, Nitrogen

Explanation:

DNA is made up of carbon, phosphate and nitrogen base, plant release oxygen as an end product during photosynthesis which makes all these element in plants and living organisms

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products