Hi.
Your answer would be myelin sheath.
Answer:
Researchers estimate global economic losses from fossil fuel air pollution at $2.9 trillion each year, or approximately 3.3 percent of global GDP.
Answer:
endosymbiosis.
Explanation:
By the beginning of the 20th century, researchers thought that plastids and mitochondria could come from bacteria. These would have been ingested by primitive cells and live within them in symbiosis.
If a Caterpillar is grown in the dark, then it will be the same color as a Caterpillar when it metamorphisizes
the internal structures provide shapes and support to a variety of living organisms both unicellular and multicellular
