Hydrangeas are a flowering plant with large showy blooms. When a plant is grown in aluminum rich soil it has blue flowers; if the same plant is transplanted into soil that is lacking aluminum the flowers produced will be pink. This is an example of .a. incomplete dominance. b. codominance. c. environmental effects. d. polygenetic inheritance.

c. environmental effects.

Explanation:

Based on the information provided within the question it can be said that this scenario is a perfect example of environmental effects. This term refers to the effect that external factors or conditions have on something. Which in this case since the flower color depends on the external conditions (aluminum in soil) then it is an example of environmental effects on the flowers gene expression.

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

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.