Q: Unlike pure substances, mixtures have a what? Choices: - efficient composition - unique composition - complex composition - variable composition A:
variable composition

Q: What are the subatomic particles of the nucleus called? Choices: - cores - eukaryotes - protons - nucleons A:
nucleons

Q: Q: What helps determine the concentration of a species in a solution? Choices: - technical analysis - qualitative analysis - fundamental analysis - quantitative analysis A:
A: quantitative analysis

Question: Q: The vivid colors of flowers are an adaptation designed to encourage what by animals such as insects and birds? Choices: - eating - consumption - flowering - pollination A:
Answer: pollination

*Question*
Q: What do you call a small whole number placed in front of a formula in an equation in order to balance it? Choices: - correlation - divisible - function - coefficient A:
**Answer**
coefficient

(Q).
Q: Mutualism is an interaction between individuals of two different species that has what effect on both of them? Choices: - neutral - harmful - abnormal - beneficial A:
(A).
beneficial