Ques: Q: What do scientists use to study the deep without going to the seafloor? Choices: - drill rigs - telescopes - ultrasound machines - remotely operated vehicles A:
Ans: remotely operated vehicles

Ques: Q: In contrast to mammals and birds, freshwater fishes produce large volumes of very dilute what? Choices: - nitrogen - feces - blood - urine A:
Ans: urine

Ques: Q: Which part of the wave helps make the wave bend and cause refraction? Choices: - dense part - heavy part - bright part - shallow part A:
Ans: shallow part

Ques: Q: Lymphatic capillaries are interlaced with the arterioles and venules of which system? Choices: - skeletal systems - circulatory system - atmospheric system - cardiovascular system A:
Ans:
cardiovascular system