Students used a sound meter to gather data in three similarly-sized rooms of their school. They played a guitar note amplified to the same volume at one end of each room. The sound meter was placed in the center of the room. The students repeated each
test three times.
Trial
Sound (dB
Classroom Library Lobby
55 50 63
1
2
56
49
64
3
55
49
65
Which room had the greatest reflection of sound off the walls?
O A. the lobby, because the smooth walls reflected more sound
B. the library, because the bookshelves reflected the most sound
O c. the classroom, because more sound was reflected by the furniture
O D. the library, because it was designed to carry sound waves away from the walls

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.

Do you think the gene eef1 alpha1 supports cell theory? explain your response.

How are fungi more like an animal? they have a cell wall. they are heterotrophs that absorb their food. they produce seeds and have membrane-bound nucleus. they use sunlight for photosynthesis.