Answer:
Researchers found that chronic exposure to a stress hormone causes modifications to DNA in the brains of mice, prompting changes in gene expression. The new finding provides clues into how chronic stress might affect human behavior.
The biome that exist closest to the Earth's poles are descibed as polar
Answer:
-Drone bees fertilize the queen.
-Their stinger is a modified egg container, so its not actually a stinger!
-Drone bees have half the chromosomes of a female, therefore they have 16.
The answer is graded potential<span>. Its made of various action potentials that depolarise the neuron incrementaly, in short interspersed intervals that do not give time for the neurons to return to resting potential. Therefore, the actions potentials, of varying sizes, grade up in sum and when they cumulatively reach the threshold level, they invoke an impulse in the nerve</span>
The answer is culinary. Hope this helps.