Answers | Latest Version | 2024/2025 |
Correct & Verified
Which type of blood vessel has valves to prevent backflow?
A. Arteries
✔✔B. Veins
C. Capillaries
D. Arterioles
Which macromolecule contains genetic information?
A. Proteins
B. Lipids
C. Carbohydrates
✔✔D. Nucleic acids
Which hormone regulates the sleep-wake cycle?
✔✔A. Melatonin
B. Insulin
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,C. Cortisol
D. Estrogen
Which process produces gametes in humans?
✔✔A. Meiosis
B. Mitosis
C. Fertilization
D. Diffusion
Which system controls body functions through hormones?
A. Nervous system
✔✔B. Endocrine system
C. Digestive system
D. Respiratory system
Which organelle is responsible for energy production in cells?
✔✔A. Mitochondria
B. Nucleus
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, C. Ribosomes
D. Golgi apparatus
Which layer of the heart is responsible for contraction?
A. Endocardium
B. Pericardium
✔✔C. Myocardium
D. Epicardium
Which type of tissue connects bones at joints?
✔✔A. Ligaments
B. Tendons
C. Cartilage
D. Muscle
Which system provides structural support and protection for the body?
✔✔A. Skeletal system
B. Digestive system
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