Answer:
the chloroplast
Explanation:
Sugar is made in the chloroplast of a plant cell. The chloroplast is an organelle that performs photosynthesis,
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False, Geothermal energy is heat from the Earth
Answer: The blue colour of a biuret solution changes to violet.
Explanation: Biuret solution is a reagent that is used to test for the presence of protein in a substance.
A Biuret solution is composed of sodium hydroxide and copper II sulphate. Copper ions give the reagent its characteristic blue colour. Copper ions react with peptide bonds in the protein in an alkaline solution to form a Biuret compound with a violet colour. The copper ions which have two positive charges are reduced to a positive charge, thereby causing a colour change.
Answer:
Explanation:
Increase in average temperatures and temperature extremes
Extreme weather events
Ice melt
Sea levels and ocean acidification
far-reaching and long-lasting changes to the natural environment,
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. ... As the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated
