Choose all the answers that apply. charlie has a normal karyotype. he has 46 chromosomes 23 chromosome pairs two x chromosomes one y chromosome one x chromosome two y chromosomes

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

Drag each label to the correct location on the image. each label can be used more than once. a scientist introduced mutations in a gene sequence isolated from bacteria. study the sequence, and identify the steps where the mutations may affect the formation of proteins. in the sequence, black letters stand for protein coding regions and red letters stand for noncoding regions. protein will not be changed. protein may be changed. attcgtgttc atcgtgttc atcgtattc attcgtattc

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time