The Pedigree chart below is for a sex-linked recessive disorder, hemophilia. H=no hemophilia
h = hemophilia
I
II
III
IV
Which of the following best identifies the genotypes of the offspring?
ANSWER: II-2 is a carrier for the trait as indicated by the fact that she doesn't have the disease, but one of her sons does.
Remember the circles represent females and the squares represent males,

Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3

Which of the following is an example of competition that could be found in a forest? question 14 options: deer eat berries and their droppings seed new areas creating more berry bushes two fox populations utilize the same rabbit population as their main food source two hawk populations utilize the same scorpion population as their main food source lack of sunlight due to changes in the seasons restricts the growth of certain plants

Explain why biological control methods are generally environmentally superior to chemical pest control methods.