Which is a tough and rigid layer that surrounds plant cells, as well as some algal and bacterial cells?

What element does susan b. anthony include in this passage to strengthen her argument?

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.

In meiosis ii during anaphase ii which structures separated homologous chromosomes or sister chromatids