Q: You are presented with the quiz "What is essential for evolution to occur?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "mutations are essential for evolution to occur" and "mutations are changes in the DNA sequence". So, what's the best answer to the question?

OPTIONS:
- Changes in DNA sequences
- Plant reproduction
- Natural disasters
- Gamma radiation
- biological diversity
- DNA sequences staying the same
- the environment
- that material's properties

A: Changes in DNA sequences

Q: You are presented with the quiz "A mutation in what of a parent can cause children to look very different from their parents?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "amutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring" and "sometimes animal offspring look very different from their parents". So, what's the best answer to the question?

OPTIONS:
- chromosomes
- sex cells
- fur and fat
- coded genes
- hormones
- sperm
- epidermal
- Enzymes

A: sex cells

Q: You are presented with the quiz "what can be detected clinically?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "viruses cause many human diseases" and "human diseases can be detected clinically". So, what's the best answer to the question?

OPTIONS:
- clinics
- viruses
- murmur
- ghosts
- anemia
- vampires
- harm
- sweating

A: viruses

Q: You are presented with the quiz "What reduces a human's bodily water?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if an animal sweats then that animal 's bodily water decreases" and "human beings are group animals". So, what's the best answer to the question?

OPTIONS:
- flying
- steroids
- fishing
- evaporation
- sugar
- sweating
- reading
- Roundworms.

A:
sweating