<h2>Answer:</h2>
The correct arrangement of steps that occur in producing neuron cells.
The steps are from 1 to 4 according to arrangement.
- Genes that lead to the production of undifferentiated precursor neurons are activated.
- Stem cell arise from the inner mass of cells.
- Signalling factors trigger differentiation in stem cells.
- Signalling factors causes precursor neurons to produce neurons.
Please see the attached file of red blood cell. Inside and outside the concentration is same in the isotonic solution. So , blood celll do not shrink and swell when we placed in isotonic solution.
Answer:
you haven't given choices but I know some they help in digestion
It seems that you have missed the necessary options for us to answer this question, but anyway, here is the answer. <span>Bacteria, organisms from the Prokaryote kingdom, and organisms from the Plant kingdom share several different traits and what they have in common is Photosynthesis. Hope this helps.</span>
