#Question id: 8294
#SCPH28 | Zoology
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: 78
#SCPH28 | Zoology
Which is true about naturally occurring monosaccharides?
#Question id: 5584
#SCPH01 Biochemistry
Which one of the following provides rapid block to polyspermy during sea urchin fertilization?
#Question id: 5227
#SCPH06 I Botany
One of the characteristics of retrotransposons is that
#Question id: 4733
#SCPH01 Biochemistry
If a homozygous plant with red peppers is crossed with a homozygous plant with green peppers, all the F1 plants have red peppers. When the F1 are crossed with one another, the F2 are in a ratio of 9 red : 3 brown : 3 yellow : 1 green due to