Answer:
Option-4
Explanation:
In the given question, S. alterniflora grows in the seaward marsh whereas  S. patensis grows in the high marsh. When  S. alterniflora is removed, the S. patensis grows to a smaller portion whereas if S. patensis is removed, the  S. alterniflora covers all the land.
This shows that although both are different species but they share a niche and the marsh land is the fundamental niche of the  S. alterniflora as it can grow in all parts and therefore its distribution is limited by only a realised niche.
Thus, Option-4 is correct.
 
        
             
        
        
        
It is important for scientists to use scientific names and not common names because common names can be easily misunderstood as something else. For example, a scientist during an expeirement will use scientific names because if they used a common name of a certain thing and it be mistaken for something that it wasn't the entire expeirement would be ruined or someone could get hurt. 
        
             
        
        
        
Slope
slōp/
noun
1.
a surface of which one end or side is at a higher level than another; a rising or falling surface.
a difference in level or sideways position between the two ends or sides of a thing.
synonyms:	gradient, incline, angle, slant, inclination, pitch, decline, ascent, declivity, rise, fall, tilt, tip, downslope, upslope, grade, downgrade, upgrade
"the slope of the roof"
a part of the side of a hill or mountain, especially as a place for skiing.
synonyms:	hill, hillside, hillock, bank, sidehill, escarpment, scarp; More
verb
1.
(of a surface or line) be inclined from a horizontal or vertical line; slant up or down.
synonyms:	slant, incline, tilt; More
        
             
        
        
        
Sphenoid bone  spans the width of the cranial floor; keystone of the cranium  <span>because its central wedge articulates with every other cranial bone </span>
        
             
        
        
        
The correct answer choice from the above statement about the proper ethical role of science in public policy is:
To refuse to testify on controversial issues
It highly unethical and unprofessional to accept and testify controversial issues 
<h3>What is scientific method </h3>
Scientific method refers to the systematic investigation of a particular phenomena through observations and experiment.
So therefore, the correct answer choice from the above statement about the proper ethical role of science in public policy is:
To refuse to testify on controversial issues
Learn more about scientific method:
brainly.com/question/17216882
#SPJ1