Answer:
b
Explanation:
animals need energy to survive basically to breakdown materials too
D. Certain genes are turned on and others are turned off; this action produces adult cells that are specialized
Answer:
RNA molecules are made of nucleotides. (Ans. C)
Explanation:
RNA, which is also known as ribonucleic acid is found in cytoplasm of the cell, and synthesized in the nucleus. It is shorter, and a single stranded molecule. It is composed of one or more nucleotides which are linked together by phosphodiester bonds.
In RNA, the ribonucleotide contains pentose sugar ribose, four nitrogenous bases (A,U,C,G), and a phosphate group. RNA plays many types of role in cells, but mainly involved in the translation process, and it's regulation which is known as protein synthesis.
Water cycle
sun
never
evaporation
transpiration
condensation
precipation
run-off
