Prokaryotes are single-celled organisms belonging to the Domains: Archae and Bacteria. Which of the following cell structures would not be present in prokaryotic cells? a( cell membrane
b( ribosome
c( nucleus
d( cytoplasm

Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.

Are the layers of rock above and below the coal older or younger?