What is used to determine phylogeny?
mutations
dna
evolutionary history
organisms on earth

The correct answer is C. Evolutionary history

Explanation:

In biology, the phylogeny refers to the branch that studies the link between species and organism on earth based on evolution, because of this, the phylogeny relies on the evolutionary history which refers to the changes organism experience over time. Besides this, the evolutionary history is studied through phylogenetic analysis or inferences that compare the traits, morphology, and genes of different organisms to try to determine if they are related or evolved from the same ancestor. Considering this, the main tool that is used to determine phylogeny is the evolutionary history.

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:

lysosomes contain a variety of enzymes, enabling the cell to break down various biomolecules it engulfs, including peptides, nucleic acids, carbohydrates, and lipids (lysosomal lipase). the enzymes responsible for this hydrolysis require an acidic environment for optimal activity. hope i !