Observations of organisms include descriptions of why the organism has certain traits. descriptions of the number, size, and arrangement of parts of the organism. conclusions made about the characteristics of an organism. conclusions made based on an organism’s DNA.

The correct statement is descriptions of the size, number and arrangement of parts of the organism.

Explanation:

The act of obtaining information from a suitable primary source is termed as an observation. It is the very initial step in the array of steps that comprises a scientific method and it incorporates the recording of data regarding an observed natural process.  

Observation permits the researchers to inquire regarding the apposite scientific questions, to produce an applicable hypothesis, and to set up significant experiments, which will provide suitable answers to the queries asked earlier.  

B. descriptions of the number, size, and arrangement of parts of the organism.

Explanation:

took the test, hope this helps.

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in

the correct answer is:

a population changes in response to a change in the environment.