Q: What is it in bone marrow transplants that may cause a graft versus host reaction? Choices: - tumors - neutrophils - cancer - lymphocytes A:
lymphocytes

Q: What substances that primarily comprise plasma membranes form a bilayer? Choices: - amino acids - enzymes - steroids - phospholipids A:
phospholipids

Q: Q: A group of genetically identical individuals is called what? Choices: - brother - replicant - a man - a clone A:
A: a clone

Question: Q: What is the process of larva becoming an adult called? Choices: - parthenogenesis - synthesis - evolution - metamorphosis A:
Answer: metamorphosis

*Question*
Q: What force occurs whenever two surfaces come into contact? Choices: - tension - vibration - gravity - friction A:
**Answer**
friction

Q: Q: What type of organism, including sea stars and sand dollars, is named for their spiny skin? Choices: - mollusks - diatoms - chordates - echinoderms A:
A: echinoderms