The correct answer is B) The cell wall provides structure to the cell.
Answer:
Gamma rays can induce clustered damages in DNA in solution, and high-energy iron ions produce DSBs and oxidized pyrimidine clusters in human cells, but it was not known whether sparsely ionizing radiation can produce clustered damages in mammalian cells.Explanation:
By nerve cells the heart has neurons and they work based on electrical potential.
The answer would be: C) sexual selection.
Sexual selection happens where one of the individuals choose the partner to sex based on some criteria. In this case, the ability to have a beautiful bower will determinate the ability of the bird to have sex and produce offspring. The criteria are not limited to visual. It could be diverse in other cases, like a deeper croak in frog
The answer is; opioids
These painkillers relieve pain by competing with neurotransmitters in binding neurotransmitter receptors in the synapse. However, they don’t induce an impulse hence block the receptors from neurotransmitters. This working principle, however, is also problematic because it causes slow breathing because the drugs calm nerve activity even that which controls your breathing.