In terms of cellular differentiation and developmental potential, embryonic stem cells within the first couple of cell divisions after fertilization are best described as

Which organelles are labeled d, and what is one feature that distinguishes them from the other labeled organelles chloroplasts the only organelles that produce sugars from sunlight mosomes, only found in animal and bacterial cells centricles only found in animal cells mitochondra, the only energo-generating structures found in cells

Aheterozygous normal male marries a woman with a sickle cell anemia. give the genotypes and possible phenotypes of the offspring

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million