Q: Down syndrome is caused by having three copies of what, a condition known as trisomy? Choices: - genome - variation - DNA - chromosome A:
chromosome

Q: What is it called when a mistake occurs in dna replication. Choices: - adaptation - degradation - radiation - mutation A:
mutation

Q: Q: Photoautotrophs including (a) plants, (b) algae, and (c) cyanobacteria synthesize their organic compounds via photosynthesis using sunlight as this? Choices: - light source4 - heating source - fuel source - energy source A:
A: energy source

Question: Q: Within the petals are two whorls of fertile floral organs that produce what? Choices: - leaves - toxins - fibers - spores A:
Answer: spores

*Question*
Q: What is the term for a test to see if a scientific explanation is right or wrong? Choices: - invention - hypothesis - generation - experiment A:
**Answer**
experiment

(Q).
Q: How often does condensation occur in your cells? Choices: - weekly - daily - never - constantly A:
(A).
constantly