You can rule out A and C it isn’t permanent or there wouldn’t be any kingdoms found later on. it is also not always accurate. So that leaves b and d. i would say D. Everything in science is based on predictions.
Inorganic ions play an important role in the proper functioning of various processes in the body. There are various positive inorganic ions that help on human metabolism such as Iron, Potassium, Calcium, Sodium, etc.
CALCIUM is an important positive inorganic ion that acts as a biological messenger in cell signalling. Bones and teeth are also formed of calcium.
The body structure ( ovaries, testes, and external genitalia) that make sexual reproduction possible. Secondary spermatocytes
Answer:
Earth > If Rocks Could Talk > Three Types of Rock
Igneous rocks are formed from melted rock deep inside the Earth.
Sedimentary rocks are formed from layers of sand, silt, dead plants, and animal skeletons.
Metamorphic rocks formed from other rocks that are changed by heat and pressure underground.:
Answer: it's the last one D) base+ sugar+ 3 phosphate
Explanation: Nucelotide base adenine, combined with a ribose sugar and 3 phosphate groups known as a nucleotide derivative because it's a modified form of a nucleotide