How many alleles does a gamete carry for each trait? a. one b. two c. millions

Sex cells (gametes) contain only one allele from the original gene. Gametes (sex cells) only receive one allele from the original gene. As you know, 2 alleles control a gene.

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

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint