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

The human GM-CSF gene and the mouse GM-CSF gene vary by more than 60% in their DNA sequence. However, when scientists place the human gene into mice, it functions properly. What best explains why this happens?

Suppose that a population of bacteria triples every hour and starts with 400 bacteria. find an expression for the number n of bacteria after t hours.

What are the 2 types of anerobic respiration

Mnemonic of : theory of evolution

How can humans have a positive impact on air quality? by using public transportation instead of driving a car O by moving to a large city, where air quality is better by removing vegetation such as trees and shrubs What is the answer

A nurse is caring for a client with hyperthyroidism. which laboratory test will be most beneficial in monitoring the effectiveness of drug therapy?

In X, the instructions on the DNA are copied and transcribed onto a molecule of Y RNA. Which terms correctly complete this statement? X: transcription Y: messenger X: translation Y: messenger X: transcription Y: transfer X: elongation Y: transfer

What is a characteristic of a Index Fossil

DNA encodes the information necessary to produce the proteins needed by your body. While this is true for humans, is it the case for other organisms? A) No, humans are the only species to use DNA.

Why is the symbol X avoided in algebra?