Which of the following statements is TRUE? A. A piece of DNA is often very long, containing many genes, while a piece of RNA is
often very short, containing only one gene
B. DNA never leaves the nucleus of a cell, but RNA can be found inside or outside the
nucleus
C. DNA contains a nitrogenous base called thymine, but RNA contains no thymine
D. All of the above are true

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time. c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

Why do bacteria thrive even in hostile environments

What does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms