The first step in the scientific method is
collect data.
draw conclusions.
state a hypothesis.
make an observation.
design an experiment.
The Correct Answer is D
A. Collect data: Collecting data occurs after observations are made and experiments are conducted. It is essential for analysis but is not the initial step in the scientific method.
B. Draw conclusions: Drawing conclusions comes at the end of the scientific method, after analyzing data and determining whether the hypothesis is supported. It is a final step rather than the first.
C. State a hypothesis: Stating a hypothesis follows making observations. A hypothesis is an educated prediction based on prior knowledge or observed patterns, but it cannot be formulated before initial observations.
D. Make an observation: Making an observation is the first step of the scientific method. It involves noticing and describing phenomena, which forms the basis for asking questions and developing a hypothesis.
E. Design an experiment: Designing an experiment is a later step used to test the hypothesis. Experiments are planned based on observations and hypotheses, not as the starting point.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Conversion of gaseous nitrogen to a usable form for plants: Nitrogen fixation is carried out by certain bacteria like Rhizobium and Azotobacter, not by endospores. Endospores do not participate in nitrogen metabolism.
B. Reproduction and growth: Endospores are not reproductive structures. They are dormant forms that ensure survival during extreme conditions, unlike spores in fungi which serve reproductive roles.
C. Protection of genetic material during harsh conditions: Endospores safeguard bacterial DNA when exposed to heat, radiation, desiccation, or chemicals. This survival mechanism allows bacteria to persist until conditions become favorable again.
D. Storage of excess cell materials: Storage granules or inclusion bodies serve this purpose in bacteria, whereas endospores are specialized for endurance, not material storage.
E. As sites for photosynthesis: Photosynthesis occurs in thylakoid membranes of cyanobacteria, not in endospores. Endospores remain metabolically inactive until germination.
Correct Answer is C
Explanation
A. Primary and secondary: Primary and secondary are general terms for stages or classifications but are not the accepted categories used to describe fungi that cause human disease.
B. Primary and vegetative: Vegetative refers to the active, growing form of a fungus (hyphae or yeast), which is a morphological description, not a category of pathogenicity.
C. Opportunistic and primary: Primary fungi can cause disease in healthy hosts, while opportunistic fungi cause disease mainly in immunocompromised individuals. These two categories encompass the major ways fungi lead to human illness.
D. Secondary and opportunistic: Opportunistic fungi are correct, but secondary is not used as a distinct category for fungal pathogens.
E. Vegetative and reproductive: Vegetative and reproductive describe fungal growth forms or structures, not their disease-causing categories in humans.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.