Thin, flexible barrier around a cell; regulates what enters and leaves the cell
- contains the cytoplasm (all interior cell organelles and the cytosol) - allowing the chemical reactions in the cell to occur
<span>- semipermeable (or selectively permeable) - allows certain substances in, keeps others out </span>
<span>- offers limited protection</span>
The answer would be Cement,Bricks, and rock salt because in Florida they mine for hard materials
Answer:
The study of injury biomechanics in crash testing is true because they use test dummies
B. I did a project on scorpions a few years back.