Which of the following examples results from disruptive selection? a. the birth weight at which newborn humans are most likely to survive and the average weight of newborn humans are about the same. b. there is an increase in antibiotic-resistant strains of bacteria. c. there is an increase in the number of different breeds of dog. d. garter snakes with different coloration patterns behave differently when threatened.

Letter D is the correct answer.

Disruptive selection, also known as diversifying selection, is a type of natural selection that drives a population apart. This type of selection is based on the variation of a trait in a population. For instance, Garter snakes that have a different coloration pattern behave in different manners when threatened.  

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation:

the answer to the blank provided is “an autosomal gene that is required for the expression of genes on the x chromosome”.

testis-determining factor, abbreviated as td, which is more popularly known as sex-determining region y or sry protein, is a dna-binding protein or  gene-regulatory protein/transcription factor, encoded by the  sry gene. it is the gene responsible for the initiation of male gender determination in humans.