Q: What are created based upon the loss or gain of electrons? Choices: - crystals - atoms - hydrogens - ions A:
ions

(Question)
Q: Physical and chemical differences help ecologists distinguish between freshwater and marine types of what? Choices: - cities - habitats - microbiomes - biomes A:
(Answer)
biomes

Ques: Q: What kind of bees are most adult bees in a hive? Choices: - larvae - queens - drones - worker bees A:
Ans: worker bees

(Q).
Q: What is considered the smallest unit of life? Choices: - proteins - particle - molecule - cell A:
(A).
cell

Ques:Q: What is one method to observe nebulae? Choices: - mirror - kaleidoscope - microscope - telescope A:

Ans:telescope

Ques:Q: The distance between two consecutive z discs or z lines is called what? Choices: - contractile - ligule - radius - sarcomere A:

Ans:
sarcomere