Answer: Two characteristics define brightness: luminosity and magnitude. ... The size of the star and its surface temperature determine its luminosity. Apparent magnitude of a star is its perceived brightness, factoring in size and distance, while absolute magnitude is its true brightness irrespective of its distance from earth.
Explanation:
Experimental studies generally use the before/after control/impact design. In this approach, an experimental area is trawled and compared before and after trawling (before/after comparison) and with a site that has not been trawled recently (control/impact comparison). This design often involves direct sampling of fauna, video observations, and sonar scans of the control and disturbed sites.
Plants need to have chloroplasts, because chloroplasts are responsible for converting solar energy into chemical energy. By doing this, the plant is able to perform photosynthesis, which then provides the food energy that the plant needs. Without chloroplasts, the plant would die.
Germinal is the correct answer
