Probably molecular biology. Scientists have been able to look at organisms and compare them visually for rather a long time, but only recently have we been able to sequence genomes and compare organisms at the molecular level.
The ability of organisms to regulate and thus maintain a relatively stable internal environment, despite external pressures, is called HOMEOSTASIS. This word comes from two Latin/Greek root words: "homeo" and "stasis".
"Homeo" means constant or unchanging. And "stasis" or "static" refers to stillness, non-movement. So, together, we can translate Homeostasis into a constant stillness inside, which makes sense for "maintaining normal internal states."
Answer: C) Is gold heavier than silver?
Explanation: .-.
Answer:
C: new, higher-yield crops
Explanation:
All of the other answers are problems while C is a positive scenario.