Which situation shows where potential energy and kinetic energy are balanced? Group of answer choices

A stopped bicycle

A roller coaster car going uphill

A car moving at a steady speed

A runner slowing down
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One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions,because prokaryotes don't have nuclei.

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

Why are some people more concerned about shark survival than about shark attacks?