Examine the diagram of the cell cycle. which label identifies the stage in which the dna is copied and the cell grows? a-w b-x c-y d-z

The zone, which exists from a depth of 0 to 600 feet, is home to the majority of ocean life.

Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d. the size of the geographic area inhabited by a population can cause speciation.

Which genetic disorders, caused by an extra x chromosome (xxy), is characterized by a lack of testicular development in males, effeminate features, possible mental impairment, and a thin stature?