Answer:
Option-B
Explanation:
Phototropism refers to the movement of plants in response to light. The mechanism of phototropism involves the photoreceptors which respond to a different wavelength of light: the phytochromes to red light, cryptochromes to blue light and the phototropin to the UV light.
Plants integrate the signals obtained from these receptors and then activates the gene which will be involved in the phototropism.
The gene could be the production of the auxin hormone and the PIN proteins which helps in the distribution of the auxin in the plants. Due to the production of this hormone and its distribution in the shoot, the grass tips bend towards the light.
Thus, Option-A is correct.
govermemt so yeah thats the answer
Answer:
It says that what happens to the mass of copper sulphate which is already dissolved in any kind of solution when the temperature increases.
The answer is; Mantle
Convection currents in the mantle drive tectonic plate movements. The convection currents in this regions are like those of water. The cooler upper mantles sink to the bottom and the hotter lower mantle rises. This circulation causes fiction drag with the overlying crust and therefore causes it to drift.
Answer/Explanation:
<u>Darwin's</u> <u>theory </u>of evolution refers to how the characteristics and features of a species can change over time. The process of evolution occurs due to <u>natural selection</u>. Natural selection is the mechanism by which organisms that have inherited beneficial traits are more likely to survive and undergo <u>successful reproduction</u>, meaning that variation is passed on to the next generation.
For example, in a species that suffers from overpopulation, organisms will likely have to compete for food and might <u>struggle to survive.</u> However, if a random change in the DNA sequence occurs, it could provide a beneficial effect to an organism that makes it more likely to find food and outcompete others. This makes that individual more likely to survive and reach mating age. This i<u>nheritable variation</u> could then be passed on to that individual's offspring.
