10th Class Biology Full Book Paper

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

1. Survival analysis in biostatistics is used to predict:
   1. Average rainfall
   2. Life expectancy
   3. School admission rates
   4. None of these
2. What triggers the release of luteinizing hormone (LH) in females?
   1. Low levels of estrogen
   2. High levels of estrogen
   3. Ovulation
   4. Menstruation
3. The scientist who discovered pulmonary and systemic circulation was:
   1. Ibn al Nafees
   2. William Harvey
   3. Louis Pasteur
   4. Hippocrates
4. Macrophages and dendritic cells are:
   1. lymphocytes
   2. granulocytes
   3. monocytes
   4. red blood cells
5. Bioremediation is the process of using:
   1. Machines to remove waste
   2. Chemicals to neutralize toxins
   3. Artificial devices for cleaning
   4. Living organisms to clean pollutants
6. Which hormone increases calcium levels in blood?
   1. Parathormone
   2. Calcitonin
   3. Thyroxine
   4. Insulin
7. The beginning of the swallowing process is:
   1. Involuntary
   2. Voluntary
   3. Both voluntary and involuntary
   4. Automatic only
8. Which of the following is NOT a symptom of AIDS?
   1. Swollen lymph nodes
   2. Weight loss
   3. Joint pain
   4. Increased muscle strength
9. The trachea is kept permanently open by:
   1. Cartilage rings
   2. Muscles
   3. Ligaments
   4. Fat cells
10. Alleles are:
    1. Different forms of a gene located at the same locus
    2. Different species of organisms
    3. Mutated chromosomes
    4. Copies of RNA molecules
11. Blood from the kidneys returns to the inferior vena cava via:
    1. Renal arteries
    2. Ureters
    3. Renal veins
    4. Capillaries
12. If the number of values is odd, median is:
    1. Middle value
    2. Average of two middle values
    3. First value
    4. Last value