(will give brainliest) lizzie loves to stargaze at night. she has noticed that the moon appears to change shape over the course of the month, and she wants to investigate why this happens. she hypothesizes that the relationship of the sun, earth, and moon creates shadows on the moon. she sets up an experiment with a lightbulb to represent the sun, a large beach ball to represent earth, and a smaller foam ball to represent the moon. she researches the position of the sun, earth, and moon at different times of a month and makes a model of the entire system.

perform the following below:

list at least three variables lizzie should control during the experiment. for each variable identified, give a specific suggestion for how lizzie can control it.

In a hypothetical breed of dogs, coat color is controlled by two genes. there are six different coat colors in this breed: black, brown, cream, gray, silver, and tan. consider the following crosses. cross 1: black females from a lineage of all black dogs are crossed with brown males from a lineage of all brown dogs. f1 males and females are all black. when f1 are intercrossed, f2 males and females are black or brown. cross 2: black females from a lineage of all black dogs are crossed with tan males from a lineage where all males are tan and all females are cream. f1 males are black, f1 females are gray. when f1 are intercrossed, f2 males and females are black, brown, gray, or tan. cross 3: silver females from a lineage where all females are silver and all males are gray are crossed with brown males from a lineage of all brown dogs. f1 males and females are all gray. when f1 are intercrossed, f2 males are black, brown, gray, or tan, f2 females are cream, gray, silver, or tan. select the correct statements regarding the mode of inheritance of the coat color genes. a) both genes are x-linked. b) both genes are autosomal. c) one of the genes modifies the expression of the other gene. d) each gene has an additive effect on the intensity of coat color. e) each gene independently specifies three colors. f) one of the genes is autosomal, and the other is x-linked.