Answer: mRNA is made in the nucleus
Explanation:
B. mixture in which its components retain their identity
Answer:
C...
Vitamin D-- Lack of sunlight--Brittle bones(rickets)
B...
Iron ---- Lack of sunlight, fish and eggs --- Anaemia
Answer:
1) Index fossils are of organisms that lived over a wide area. They lived for a fairly short period of time. An index fossil allows a scientist to determine the age of the rock it is in.
2) Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages.
Explanation:
The correct option is D.
Hydrological cycle refers to the cycle that process the continuous water circulation on the earth surface. Many processes are involved in water cycle, examples are evaporation, condensation, precipitation,transpiration, etc. The constancy of the quantity of water in the hydrological cycle is usually maintained but its distribution changes continuously. The greatest source of water in the hydrological cycle is the ocean.
