All of the following are possible steps of scientific investigation except for (a) the collection of scientific facts through observation and measurement (b) development of observations and experiments to test the hypotheses (c) the development of one or more working hypotheses or models to explain facts (d) assumption of conclusions without prior experimentation or observatio

 (d) Assumption of conclusions without prior experimentation or observation.

Explanation:

A scientific investigation can be define as a fact finding inquiry which involves the detailed step by step procedure for answering the questions related to science. It involves steps like making an observation, creating a hypothesis, making a prediction depending upon the hypothesis, experimentation and analysis.

(d) Assumption of conclusions without prior experimentation or observation. is the correct option this is because of the fact that in a scientific investigation an assumption cannot be made. The assumption cannot lead to conclusive results and finding cannot be considered as reliable.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

      n