Q: Dna consists of how many long chains of nucleotides? Choices: - three - zero - one - two A:
two

Q: Fossils provide a window into the past. they are evidence for what? Choices: - emergence - intelligent design - generation - evolution A:
evolution

Q: Q: All matter in the universe is composed of one or more unique pure substances called what? Choices: - atoms - molecules - compounds - elements A:
A: elements

Question: Q: Scientists who find and study fossils are called what? Choices: - biologists - geologists - anthropologist - paleontologists A:
Answer: paleontologists

*Question*
Q: What term is used to describe changes to an organism's dna and are an important driver of diversity in populations? Choices: - adaptations - pathogens - evolutions - mutations A:
**Answer**
mutations

Q: Generally speaking, electronegativity values ______ from left to right across a row in the periodic table and _______ down a column. Choices: - reverse, descend - move, fall - decrease, increase - increase, decrease A:
increase, decrease