Answer (option c):
Placer mining involves <u>dredging sediments from the water bottom</u> to extract minerals.
Medulla oblongata . it controls all invoulantry actions . including unconscious breathing .
Understanding evolution helps us solve biological problems that impact our lives. There are excellent examples of this in the field of medicine. To stay one step ahead of pathogenic diseases, researchers must understand the evolutionary patterns of disease-causing organisms. To control hereditary diseases in people, researchers study the evolutionary histories of the disease-causing genes. In these ways, a knowledge of evolution can improve the quality of human life.




B. Inside prokaryotic cells
Answer:
Oxygen
Explanation:
Plants take in water, Carbon Dioxide and light to make oxygen for humans and animals to breath.