Q: What are unique in having adaptive immunity in addition to innate immunity? A:

OPTIONS:
- invertebrates
- cells
- organelles
- vertebrates

Answer: vertebrates

Problem: OPTIONS:
- group
- density
- variable
- variance
Q: Q: The diversity of alleles and genotypes within a population is known as genetic what? A:
Answer: variance

Problem:OPTIONS:
- ionic bonds
- covalent bonds
- toxic bonds
- metallic bonds

Q: What types of bonds hold together positive metal ions and their valence electrons? A:
****
A: metallic bonds

Q: What is the most diverse and abundant group of organisms on earth, numbering in the millions of trillions? A:
OPTIONS:
- viruses
- pests
- pathogens
- bacteria
bacteria

Q: Matter can exist either as a pure substance or as a combination of what? A:
OPTIONS:
- Different Liquids
- much substances
- different vapors
- different substances

Answer: different substances

input with options: Q: What is the process by which some solids transition directly into gases? A:
OPTIONS:
- articulation
- vaporization
- amplification
- sublimation
output:
sublimation