Answer:
they come from embryos, have properties of embryonic stem cells, Perinatal stem cells.
Explanation:
Embryonic stem cells. These stem cells come from embryos that are three to five days old.
Adult stem cells.
Adult cells altered to have properties of embryonic stem cells (induced pluripotent stem cells).
Perinatal stem cells.
Kingdom phylum, there are insects like butterflies
Answer:
A radioisotope is a radioactive isotope.
Answer:
1st point describes both the sperm and ovum.
