Answer:
Cerebrospinal fluid fills the ventricles of the brain and the space between the pia mater and the arachnoid.
Explanation:
The best answer is B. For example, someone could ask for the probability of a tornado tomorrow. It's not very likely but it is still a valid probability.
Answer;
Decreased birthrate
If immigration and emigration numbers remain equal , decreased birthrate could cause a slowed growth rate.
Explanation;
All populations change in size with time . Change in population is dependent of various factors, namely; birthrates, death rates, immigration and emigration.
Therefore; change in population size would be given by the difference of the sum of birth rates and immigration and the sum of death rates and emigration. That is; Change in Population Size = (Births + Immigration) - (Deaths + Emigration). A decreased birth rate with emigration and immigration remaining constant would cause a slowed growth rate.
Punctuated equilibrium, it is rapid evolution with little change in between
A single molecule is the one that is responsible for initiating a signal transduction pathway. The answer in this question is a single molecule. Molecule is defined as an electrically neutral group of two atoms or more held together by a chemical bonds.
