Sandra was quite overwhelmed by her final exam. Many of the test questions were difficult to answer, and she felt like she would not be able to complete the exam. What would you suggest Sandra do? a. Sandra should guess answer “C” on all of the questions, because teachers use answer “C” as the correct answer most often. c. Sandra should leave the questions she is unsure about blank because unmarked questions are never counted wrong. b. Sandra should answer the questions in numerical order so that she does not skip any. It will not matter if she doesn’t finish in time. d. Sandra should answer the easy questions first. Then she should go back and reevaluate the more difficult question. Please select the best answer from the choices provided A B C D

The allele for curly hair is incompletely dominant. if a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will exhibit characteristics of both parents? 25 percent 50 percent 75 percent 100 percent

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.

Nh3 +02-no + h20 is unbalanced what is the balanced equation