State one reason why some species might have similar body structures even if they are not closely related

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

Yeast cells reproduce quickly by budding. this is a form of reproduction so all the yeast cells a) sexual; vary b) asexual; vary c) asexual; are identical d) sexual; differ from the parents submit hint structures and functions of cells cellular reproduction

Pulmonary arteries carry highly oxygenated blood. true or false?