According to chargaffs base pairing rules, the percentages of are equal to those of thymine and the percentages of are equal to those of guanine in the dna molecule

After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

An area has a few days of low humidity, warm air temperature, and high air pressure. what kind of weather is this area experiencing? o fog o snow storms o sun