Natural Science (PSB) Questions and Answers Already Passed
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Course
Natural Science
Institution
Natural Science
Natural Science (PSB) Questions and
Answers Already Passed
What is the primary function of the lungs in the human body?
To exchange gases
What type of reproduction involves only one parent?
Asexual reproduction
What is the main component of the Earth's atmosphere?
Nitrogen
What...
Natural Science (PSB) Questions and
Answers Already Passed
What is the primary function of the lungs in the human body?
✔✔ To exchange gases
What type of reproduction involves only one parent?
✔✔ Asexual reproduction
What is the main component of the Earth's atmosphere?
✔✔ Nitrogen
What is the process by which animals maintain a stable internal environment?
✔✔ Homeostasis
What are the basic units of heredity called?
✔✔ Genes
1
,What is the scientific study of living organisms?
✔✔ Biology
What is the term for the region of the brain responsible for processing visual information?
✔✔ Occipital lobe
What is the role of enzymes in biological reactions?
✔✔ To speed up reactions
What is the smallest unit of an element?
✔✔ Atom
What are the three states of matter?
✔✔ Solid, liquid, gas
What is the primary purpose of the cell membrane?
✔✔ To protect and regulate what enters and exits the cell
2
, What do you call a group of similar cells that perform a specific function?
✔✔ Tissue
What is the main source of energy for the human body?
✔✔ Carbohydrates
What type of cell is responsible for carrying oxygen in the blood?
✔✔ Red blood cell
What is the process by which plants absorb water through their roots?
✔✔ Osmosis
What is the term for the study of the Earth's physical structure and substance?
✔✔ Geology
What is the basic building block of carbohydrates?
✔✔ Monosaccharides
3
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