Based on the graph, determine the amount of U-238 that would remain after 4.5 billion years, if the original sample contained 6 grams of pure U-238.

A) 0.75 grams

B) 3 grams

C) 6 grams

D) 12 grams

Like dna, rna contains four nitrogenous bases. three of them are the same as those found in dna. the one that is different is called. the five-carbon sugar in rna is called

What is the correct definition for individual team sports?

People with pure autonomic failure lose nervous system control over their heart rate, breathing, sweating, etc. what, if anything, happens to their emotions?

Why is carbon important for forming complicated molecules? O A. It forms very weak bonds. O B. It can only form two ionic bonds. OO c. It can form an ionic bond with itself. O D. It can form four covalent bonds.

The cells in the meristematic region of the root are undergoing a. meiosis. b. sexual reproduction. c. binary fission. d. mitosis.

Why do vaccines work for some diseases but not others?

Which is not a disturbance of an ecosystem?

Which term means the evaluation or appraisal of a condition?

In your own words, explain the role of the digestive, endocrine, and excretory systems in maintaining homeostasis. will mark brainliest

Suppose you want to radioactively label DNA but not RNA in dividing and growing bacterial cells. What radiolabeled molecule would you add to the culture medium? Why would it selectively label DNA but not RNA?