Question: Q: What process takes place when echinoderms release their gametes into the water? Choices: - migration - stimulation - isolation - fertilization A:
Answer: fertilization

Question: Q: What is moving air called? Choices: - steam - clouds - humidity - wind A:
Answer: wind

Question: Q: What organs filter blood and form urine? Choices: - the appendix - the spleen - the liver - the kidneys A:
Answer:
the kidneys