Where would a disease transmitted by person-to-person contact be most likely to spread quickly?

What are some possible short and long term medical concerns for crew members on longer space exploration trips

Match the reproductive structures based on their function and the system to which they belong. egg ovary sperm vas deferens vagina fallopian tube testis urethra

An organism's reproductive strategy includes all of the following except a. the number of offspring produced. b. the amount of energy expended in producing offspring. c. the length of time parental care is given d. the number of alleles an organism passes on.