Problem:OPTIONS:
- 50.3 blood cells
- s.a blood cells
- Deep Blood Cells
- red blood cells

Q: The majority of cells in blood are erythrocytes or? A:
****
A: red blood cells

Q: What layer covers the bones that make them look tough, shiny, and white? A:
OPTIONS:
- epithelium
- cuticle
- epidermis
- periosteum
periosteum

Q: The most common carbon atoms have six protons and six neutrons in their what? A:
OPTIONS:
- ribosomes
- neuron
- membrane
- nuclei

Answer: nuclei

Question: Q: The number of protons in an atom is called what? A:
OPTIONS:
- mass number
- metallic number
- isotope
- atomic number
Answer: atomic number

input with options: Q: What did darwin call the evolutionary concept of change in populations over generations? A:
OPTIONS:
- formation with modifications
- reproduction with modifications
- metabolism with modifications
- descent with modifications
output: descent with modifications

Problem: OPTIONS:
- by texture
- by shape
- by smell
- by color
Q: Q: How does litmus paper indicate the ph value of a solution? A:
Answer:
by color