Which of the following best explains the roles plants and animals play in recycling carbon? * 25 points
Plants and animals both take in carbon through digestion. They return it to the cycle through decomposition.
Plants collect and store carbon through photosynthesis. Animals exhale carbon dioxide through respiration.
Animals produce carbon through photosynthesis. Plants take in carbon for during cellular respiration.
Plants produce carbon dioxide through photosynthesis. Animals take in carbon dioxide for breathing.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.