1. Hagrid has been breeding his creatures again. This time he is breeding Cerberus, his 3 headed dog. Having three heads is dominant over having 2 heads. He has also discovered that having chocolate brown fur is dominant to yellow fur. Hagrid crosses Cerberus (who is heterozygous for both traits) to a female that is also heterozygous for both traits. Hagrid's customers I want the super rare 2-headed, yellow furred dogs. What is the expected frequency of these dogs in the cross he conducts? Use the Punnett square below to support your answer. a) Letter that you chose to represent number of heads: b) Letter that you chose to represent the color of fur:​

What would happen if the krill were removed from the food web

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.

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems