Answer:
I believe this is a traverse cross section of the gut.
Explanation:
fI cant tell for sure given it is not labeled with the submucosa or ILM but the shape and characteristics portray that. If this is not correct then respond with a comment as it could be a section. I have included a photo for refrence for this section
Answer:
C
Explanation:
The cell membrane is the layer surrounding the cell. This is like a barrier.
C.) Antigen on the red blood cells
Answer:
The correct order is
5, 4 , 3, 2, 1
Explanation:
The first stage is the fusion of sperm with egg in fallopian tube which induces chemical reactions that prevents fusion of multiple sperm with one egg. This is known as preventing polyspermy.
After this the fused egg starts dividing and growing through the process of mitosis. The growing zygote reaches the stage of morula after few cell division and continues the division process till it reaches the stage of blastocyst.
The blastocyst now move down the fallopian tube to attach to the wall of uterus. This stage is known as implantation.
Hence, the correct order is 5, 4 , 3, 2, 1
An unspecialized cell that can give rise to one or more different types of specialized cells, such as blood cells and nerve cells. Stem cells are present in embryos and in various tissues of adult organisms
