Biology, 28.07.2019 05:00 makeithappen60
Where might you expect to find the greatest variety of kinds of marine organisms
Answers: 2
Biology, 22.06.2019 02:00
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.
Answers: 2
Biology, 22.06.2019 14:20
Which feature would you expect to find in a population in which sexual selection depends on male competition?
Answers: 1
Biology, 22.06.2019 17:10
Communication and transportation have improved as a result of scientific advancements. select the best answer from the choices provided of mark this and return save and exit next
Answers: 3
Biology, 23.06.2019 00:30
Which hormones are synthesized from cholesterol? a. steroidsb. modified amino acidsc. peptidesd. glycoproteinse. all of the above
Answers: 3
Where might you expect to find the greatest variety of kinds of marine organisms...
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