Which statement best describes the DNA molecules made from this process? 1 point
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The new DNA molecules are identical to each other and to the original molecule.
The new DNA molecules are identical to each other but not to the original molecule.
The new DNA molecules are each identical to only one strand in the original molecule.
The new DNA molecules are not identical to the original, providing variation in the DNA.

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:

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.