One pair of genes for coat color in cats is sex-linked and shows incomplete dominance. Gene Y produces yellow coats and is located in the X chromosome (XY ). Gene B produces a black coat (XB). Heterozygous (XB XY) produces a tortoiseshell coat. a. Why will there never be any tortoise shell males? Explain.

b. What kind of offspring will result from mating a yellow male and a black female? Explain.

Answer ! in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.