Researchers have found that mitochondria and chloroplasts in eukaryotic cells have their own dna. this dna is different from the dna in a eukaryotic cell's nucleus. chloroplasts and mitochondria use their own dna and ribosomes to make some organelle-specific proteins.
what statement is best supported by this information?
a.
mitochondria and chloroplasts could exist outside of modern cells.
b.
early eukaryotic cells engulfed prokaryotic cells, which later became mitochondria and chloroplasts.
c.
modern cells could exist without mitochondria and chloroplasts.
d.
early prokaryotic cells engulfed eukaryotic cells, which later became mitochondria and chloroplasts.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

b. to discover aspects of the natural world.

hopefully i .

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.