Answer:
Your answer is photosynthesis.
Answer:
c.assembling parts of the virus
The organ that living things such as fish use to extract dissolved oxygen from water are the gills. As land animals and humans don't have gills, we can't breath underwater and take in the oxygen from that source.
Tundra - The coldest land biome is found near Earths north and south poles. It has no trees but has low, slow growing vegetation with permafrost below the topsoil. The tundra usually receives less than 25 cm of precipitation annually.
