Why is it difficult for scientists to accurately reconstruct the history of life on Earth during Precambrian time? (check all that apply) Many of the fossils have been destroyed
Most life was simple and didn’t fossilize well
We can’t dig deep enough
Life didn’t exist back then

Which taxon group is more specific, in regards to organisms that are in that group? mammalia animalia

Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.