Ques: Q: What is used to darken images of the sky? Choices: - close-up filter - uv filter - neutral density filter - polarizing filters A:
Ans: polarizing filters

Ques: Q: What are ingrowths on arthropod exoskeletons to which muscles attach? Choices: - joints - pores - rods - apodemes A:
Ans: apodemes

Ques: Q: What type of muscle makes up most of the heart? Choices: - chest muscles - heart muscle - respiratory muscle - cardiac muscle A:
Ans: cardiac muscle

Ques: Q: What type of learning is based on past experience and reasoning? Choices: - experiment - theory - reflect - insight A:
Ans:
insight