What are the similarities between DNA and RNA molecules? (4 points) A double stranded helix, a phosphate group, and a hexose sugar

A nitrogenous base, a phosphate group, and a pentose sugar

A nitrogenous base, an amino acid, and a pentose sugar

A single stranded helix, a phosphate group, and a pentose sugar

Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?

Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .

Describe two recent or ongoing space missions.