The correct answer is Option D
Reason - Since the two species live in the separate geographical area i.e different ponds they will evolve different traits and characteristics due to geographical diversity Thus any kind of isolation produced with in a species due to change in their spatial entity is called geographic isolation.
Answer: reactive
Explanation: Noble gases are the elements of group 18. This series contains helium, neon, radon krypton and radon. The noble gases are the least reactive of any elements on the periodic table
Answer: Tertiary consumers
A tertiary consumer in a food chain is an organism which is carnivorous in nature, which means it feeds upon other organism belonging to lower trophic level like secondary and primary consumers. In ocean foodchain the parrotfish feeds on marine plants which are producers and parrotfish is a primary consumer. This parrotfish is eaten up by big fish which is a secondary consumer. This big fish is feed up by shark. Therefore, shark belongs to tertiary consumers.
Answer:
oil weighs less than water
Explanation:
its a density thing
Answer:Classification, in biology, the establishment of a system of categories on the basis of presumed relationships among organisms. The science of biological classification is commonly called taxonomy.