Answer: Apical meristem and the lateral. The heart, brain, bone marrow and the Lungs in adults are difficult to repair using stem cells.
Explanation:
There are two kinds of stem cells: embryonic stem cells and adult stem cells. Adults also have stem cells in the heart, brain, bone marrow, lungs, and other organs. They are our built-in replacement tools, restoring cells infected by infection, trauma and everyday erosion, and cut. Adult stem cells are extremely difficult for specialists to operate because they are extra challenging to derive and culture than their immature complements.
<span>The skin and the liver. The skin is the largest organ in the body and interacts with most other organs in the body in some way, due to it's size and coverage, it is difficult to repair easily using skin cells. The liver is one of the most complex organs in the body and as the detoxifying organ in the body is complex to repair.</span>
Two different kinds of appendages may be found on eukaryotic cells that enable them to move. Flagella are long slender locomotor appendages that are usually single and few in number, whereas cillia are appendages which are numerous and short.
Fraternal twins are “dizygotic,” meaning that they developed from two different eggs fertilized by two different sperm cells, while identical twins are “monozygotic” i.e., they developed from a single fertilized egg that split.
