In an ecosystem, which list of organisms is in the correct order from producer to top-level consumer? (20 points) A. field mouse, grass, hawk, snake
B. snake, field mouse, hawk, grass
C. grass, field mouse, snake, hawk
D. snake, grass, field mouse, hawk

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?

Which is an example of precipitation. 1snow 2clouds 3natural gases 4organic matter

Rank the following one-base point mutations (from most likely to least likely) with respect to their likelihood of affecting the structure of the corresponding polypeptide: 1. insertion mutation deep within an intron 2. substitution mutation at the third position of an exonic codon 3. substitution mutation at the second position of an exonic codon 4. deletion mutation within the first exon of the gene a) 1, 2, 3, 4 b) 4, 3, 2, 1 c) 2, 1, 4, 3 d) 3, 1, 4, 2 e) 2, 3, 1, 4