Q: Humans have an estimated 20,000 to 22,000 of what units of heredity? A:
OPTIONS:
- eggs
- cells
- chromosomes
- genes
genes

Q: What is the only commercial way of reproducing plants such as orchids? A:
OPTIONS:
- sexual reproduction
- cross-breeding
- grafting
- cloning

Answer: cloning

Question: Q: About one-fourth of the blood pumped with each heartbeat enters arteries serving what organs of digestion? A:
OPTIONS:
- stomach
- bowels
- lungs
- intestines
Answer: intestines

input with options: Q: Making ultrasonic clicks is a clever way that some moths respond to attacks by what flying mammals? A:
OPTIONS:
- bees
- locusts
- birds
- bats
output: bats

Q: Q: In which process do signaling molecules from embryonic cells cause transcriptional changes in nearby target cells? A:

OPTIONS:
- replication
- maturation
- orientation
- induction

A: induction

Q: Where do biochemical reactions occer? A:
OPTIONS:
- outside organisms
- inside labs
- in the environment
- inside organisms
inside organisms