Process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.
Answer:
B. It provides the code for the protein
Explanation:
HIV directly attacks CD4 helper lymphocytes directly. (D)
Answer:Plants use carbon dioxide to make food
Explanation: Carbon-dioxide plays a very important role in sustaining life on Earth.
Plants use carbon-dioxide and water for photosynthesis in presence of sunlight and chlorophyll to produce food and oxygen.
CO₂ + H₂O → O₂ + glucose (food)
This food is consumed by the animals and oxygen is used for respiration. Animals use energy from the food to do work and exhale back carbon-dioxide.
