A. The rate of organic matter production after accounting for respiration
B. The rate of decomposition by microbes
C. The total rate of photosynthesis or organic matter production by producers
D. The rate of storage of organic energy by consumers
Answer: Option C
Solution (By JKExamLibrary)
Gross Primary Productivity (GPP) is the total rate of photosynthesis, or the total amount of organic matter (biomass) produced by producers (plants) per unit area per unit time, including the organic matter used in respiration. Net Primary Productivity (NPP) is GPP minus the energy used by the plants for respiration (NPP = GPP - R).
Explanation:
Pancreatic amylase, secreted into the duodenum, continues starch digestion initiated by salivary amylase, producing maltose and dextrins. Maltase then breaks maltose to glucose. Sucrase acts on sucrose.
Explanation:
Fungal cell walls contain chitin, a strong, flexible polysaccharide also found in arthropod exoskeletons. Cellulose is in plant walls, peptidoglycan in bacterial walls, lignin in secondary plant walls. Chitin provides structural support and protection against environmental stress.
Explanation:
Darwin traveled as a naturalist on the HMS Beagle (1831-1836) and made extensive observations, especially in the Galápagos Islands. His observations of finches' beak adaptations led to the concept of natural selection as the mechanism for evolution. 'On the Origin of Species' (1859) laid out his theory. HMS Challenger was an oceanographic expedition. HMS Endeavour was Captain Cook's ship.
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