The chart above shows the Mohs Hardness Scale for measuring the hardness of minerals. A mineral which can scratch Calcite, and can be scratched by Orthoclase is able to- can be scratched by both Talc and Diamond

scratch both Talc and Diamond

scratch Gypsum, and be scratched by Topaz

scratch Topaz, and be scratched by Gypsum

it would be f

explanation:

homeostasis is the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. and this is how it applies to the integumentary system. back to top. skin functions in homeostasis include protection, regulation of body temperature, sensory reception, water balance, synthesis of vitamins and hormones, and absorption of materials. when body temperature falls, the sweat glands constrict and sweat production decreases.

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.