#Question id: 8294
#SCPH06 I Botany
The common ancestors of birds and mammals were very early (stem) reptiles, which almost certainly possessed three-chambered hearts (two atria, one ventricle). Birds and mammals, however, are alike in having four-chambered hearts (two atria, two ventricles). The fourchambered hearts of birds and mammals are best described as ________.
#Question id: 27811
#Research Methodology
#Question id: 5537
#SCPH06 I Botany
The segmented blocks of tissue that develop on each side of the notochord are called the
#Question id: 12731
#SCPH06 I Botany
#Question id: 4720
#SCPH28 | Zoology
Which of the following phenomenon, the differential expression of genetic material depending on whether it is inherited from the male or female parent, is called