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.
Answer: While cutting a screen for an aquarium top, you point the scissors away from your body.
You pipette a liquid using a bulb pipette.
You heat a liquid by placing it in a plastic beaker on a hot plate.
Explanation:
Binary fission is the process of a bacterial cell going from singular to double. Therefore the correct answer would be: "During binary fission, a bacteria cell grows in size because DNA and other organelles are duplicated."