The third answer because I was taught this information
Starfish has a endoskeleton
a coral has a exoskeleton
sponge has neither
Hi there! Your answer will be: ureters.
It's a set of two small(8-10 inch) tubes.
Their purpose is to carry urine from the kidneys to the bladder.
Hope this helps! :)
I believe the answer to this is B
Answer: To determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This is called the Rule of Superposition. ... With absolute age dating, you get a real age in actual years.
Explanation: Hope this helps :)