When your sperm enters a opposite gender what happens next?

What is the best way to teach common sense to a child?

Based on the chart, what are the three most effective methods to protect against pregnancy?

Which of the following viruses would most likely have reverse transcriptase? a) an rna-based lytic virusb) an rna-based lysogenic virusc) a dna-based lytic virusd) a dna-based lysogenic virus