Answer:
Undifferentiated inner cell mass
Explanation:
Human embryo has two types of cells in its initial stage, trophoblast and inner cell mass. Trophoblast forms the placenta and inner cell mass form the entire human body. Inner cell mass are pluripotent in nature i.e. they can give rise to any body part under right conditions.
Embryonic stem cells are derived from the inner cell mass. They are derived from pre implantation embryo since after implantation the inner cell mass begins to differentiate. Embryonic stem cells can replicate indefinitely without differentiating. They can give rise to all the three germ layers: ectoderm, mesoderm and endoderm. They can treat a number of disorders like genetic disorders, Parkinson's, spinal cord injury, cancers etc.
Answer:
The last quarter
Explanation:
The waning gibbous phase occurs between the full moon and third quarter phases. The last quarter moon is when half of the lit portion of the Moon is visible after the waning gibbous phase
<span>#1) How does attachment affect exploration?
Answer: According to Ainsworth attachment acts as a form of secure base, which is used by the infant to explore the rest of the world and make further attachments. This was concluded after noticing that during strange situation children are more than likely to explore the setting in presence of the mother than the stranger. Harlow studied attachment of monkeys, which makes both investigations highly different.
<span>I hope it helps, Regards. </span></span>
Answer:
A) air
Explanation:
air is a mixture of various gases ...
Answer:
true
Explanation:
Just think about extinction and how many species we have lost throughout time.
