Write a 5 sentence paragraph answering the question below for 15 points How the pink salmon population has changed over the last 40 years In your explanation, include:
-The source of variation of traits within the population
-environmental factors that influenced the population
-traits or adaptations developed by the population
-evidence that supports the change in distribution of traits over time

Bisphenol a (often called bpa) is a chemical found in products that people use every day, from water bottles to food containers to children's toys. unfortunately, bpa leaches out of its many products and makes its way into our bodies. what are the health effects of bpa exposure? ongoing research is finding that elevated exposure to bpa can affect a wide variety of developmental and physiological processes, but one of the first studies of bpa's health effects came about because of a simple mistake in the lab. at a laboratory at case western reserve university in 1998, geneticist patricia hunt was making a routine check of her female lab mice. as she extracted and examined developing eggs from the ovaries, she began to wonder what had gone wrong. she noticed that many of the eggs showed problems with their chromosomes, and some had irregular amounts of genetic material, which can lead to miscarriages and birth defects in mammals. she learned that a lab assistant had mistakenly washed the plastic mouse cages and water bottles with a harsh soap, releasing bpa from the plastic. knowing that bpa is an endocrine disruptor, a chemical that can enter organisms and mimic hormones, hunt set out to discover whether it had adversely affected her mice.

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called

Qué sucede cuando una persona tiene muy poco o demasiado costeroides?