Answer:
B. Cells
Explanation:
The plasma membrane is one of the essential structural and functional components of all the cells. It maintains the cell's interior and regulates the entry and exit of substances into and out of the cells. Both prokaryotic and eukaryotic cells have a plasma membrane.
Plasma membrane forms the outer most covering of an animal cell. Plant cells and bacterial cells have a cell wall outside the plasma membrane. Irrespective of the cell type, the plasma membrane is made up of a bilayer of phospholipids with a hydrophobic core. Several proteins are embedded in the lipid bilayer.
Hmm..
Pollution
Blooms (Harmful algal that produces toxins)
Coral mining/overfishing/harmful fishing (blast fishing using dynamite)
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A. Phosphate
Thymine is just in DNA.
Uracil is the replacement for thymine in RNA, so it is only in RNA.
Deoxyribose is just in DNA, it is what the 'D' stands for, RNA has ribose.
Both RNA and DNA have a phosphate and five-carbon sugar backbone, so they both have phosphate in them.
S<span>cientists make changes in experiments to see if those changes will cause an effect in something they observe</span>