Which one is related to mesoderm formation
A: the occurance of the primitive streak
B: theoccurance of notochord
C: a part of the cells migrate from the epiblast
D: a part of the cells migrate from the hypoblast
A: the occurance of the primitive streak
B: theoccurance of notochord
C: a part of the cells migrate from the epiblast
D: a part of the cells migrate from the hypoblast
C
举一反三
- What is the common part of animal cells and plant cells?
- Pus formation largely results from the accumulation of the remains of dead and dying <br/>________. A: neutrophils B: macrophages C: epithelial cells D: sentinel dendritic cells E: red blood cells and platelets
- As a number of authors point out, the urge to migrate is a(n) _________ part of human nature.
- A tissue graft obtained from one part of a patient's body for use on another part is a(n) ____.
- All cells are enclosed by a plasma membrane, which separates the inside of the cell from its environment.
内容
- 0
Embryonic stem cells (ES cells) are pluripotent stem cells derived from the outer cell mass of a blastocyst, an early-stage pre-implantation embryo._
- 1
Solar cells enable the power ____ from the sun.
- 2
Which of the following cells possess the features of typical serous cells?() A: Parietal cells B: Chief cells C: Goblet cells D: Absorptive cells E: ECL cells
- 3
Nowadays, many people ________ from the countryside to the cities in search of work. A: immigrate B: toddle C: emove D: migrate
- 4
Which of the following cell types is glioma derived from? A: Astrocytes B: Oligodendrocytes C: Neural stem cells D: Any of the above