A hydrangea plant has blue flowers when grown inacidic soil, but has pink flowers when grown inbasic soil. A clone of the pink-flowered plant is grown in acidic soil and produces blue flowers. This change in flower color is most likely due to:.
1) sexual reproduction in the plants, resulting in variation.
2) asexual reproduction in the plants, resulting in variation.
3) genes being expressed in different ways due to environmental conditions.
4) a gene mutation that occurred after the clone was produced.

it would be heredity

answer; ///animal spirits;

1) a giant star is a star with a radius much larger than that of our sun (even hundreds of times bigger). they can be either blue giants or red giants: in the first case, the surface temperature is very high, higher than that of the sun, while in the second case the surface temperature can be lower than that of the sun. the same applies to the mass: blue giants are very massive stars, burning quickly their nuclear fuel, while red giants can have small masses (a little bit bigger than that of our sun).

2) we can find giant stars in the upper part of the hr diagram, blue giants will be on the upper left corner since they have high luminosity and high temperature, while red giants will be on the upper right corner, having high luminosity but low temperature.