Scientists have shown that a person’s race is determined by a set of biological traits found in their dna.
a. true
b. false

The given statement is False.

Race is a socially constructed phenomenon according to which human beings are primarily categorised on the basis of their skin tones and social characteristics.

This makes them people discriminate and view human beings as different categories.

Thus, race is not related to the DNA of the organism.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg