Problem:OPTIONS:
- heart shunts
- renal arteries
- umbilical arteries
- blood shunts

Q: Although much of the heart's basic structure is complete by the end of the fifth week, what fetal structures remain until birth or shortly after? A:
****
A: blood shunts

Q: Among vertebrates, what broad category of animals is most capable of learning? A:
OPTIONS:
- birds
- fish
- reptiles
- mammals
mammals

Q: Prokaryotic cells have a cell wall located outside of the __________? A:
OPTIONS:
- epidermis
- chloroplasts
- chromosomes
- plasma membrane

Answer: plasma membrane

Question: Q: What is necessary in a person who wishes to play wind instruments? A:
OPTIONS:
- strong hands
- vocal cords
- powerful lips
- healthy lungs
Answer: healthy lungs

input with options: Q: Growth factors and certain plant and animal hormones serve as molecular messengers that initiate pathways of what? A:
OPTIONS:
- cellular decay
- cell fusion
- cell growth
- cell division
output: cell division

Problem: OPTIONS:
- red blood cells
- white brain cells
- dendritic cells
- white blood cells
Q: Q: Macrophages, which can swallow and destroy old and dying cells, bacteria, or viruses, are large types of what cells? A:
Answer:
white blood cells