Which of the following are chemical reactions? Check all that apply A. Pouring chocolate sauce into milk to make chocolate milk
B. Making caramel sauce
C. Getting a suntan
D. Mixing oil and vinegar to make salad dressing

Place the steps tor the formation of the enzyme pepsinogen in correct order

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.