Two strands of DNA molecule held by the hydrogen bonds. Determine the number of adenine, thymine, guanine and cytosine nucleotides in DNA molecule, in which 54 nucleotides are connected by three hydrogen bonds and 48 nucleotides - two hydrogen bonds. Explain the results.

Climate warming trends allow plant and insect species to inhabit larger ranges. select the best answer from the choices provided

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

Which of the following is not a technology that can be used to conserve resources? a. hydropower b. volcanic power c. natural gas d. geothermal select the best answer from the choices provided a b c d