Bacteria, a prokaryote, has circular DNA, as do mitochondria and chloroplasts. This provides support for the Endosymbiotic Theory, which states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote).
<span>The salmon is among the most revered of coastal animals, for its cultural and spiritual importance to First Nations, its world-famous tasty flesh, and its role in the historical economy of BC. The most common salmon in our local waters are Chum and Coho. All Pacific salmon species are anadromous, meaning they spend most of their life in the ocean but migrate to fresh water to breed. Consequently they interact with several different ecosystems, and play important roles in terrestrial, freshwater and marine food webs.</span>
1. 3.5
2. Polar covalent
3. Polar covalent
4. Polar covalent
5. The bonds in a CCl4 molecule are polar, but CCl4 itself is a nonpolar covalent.
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