Evidence of a Large Meteorite 1. How are the moon's craters evidence that large meteoroids probably hit Earth?
2. Why is evidence of meteoroid impact rare on Earth, despite the fact they often pass into Earth's atmosphere?
3. About what age are the rocks that show the highest level of iridium?
4. What are two possible sources for the high iridium level shown in the graph?
5. In several other parts of the world, rocks of the same age have similar levels of iridium. What can you infer from this information?

eukarya because is is like alche and b is bacteria and d is animals

explanation:

i think the answer would be d

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.