What are some of the possible short and long term medical concerns for crewmembers on longer space exploration trips?

Crewmembers may develop short-term conditions which are reversible. Those conditions include: vision impairment risks and short-term cardiac atrophy, increase in length, weight loss, vestibular dysfunction etc.

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.

answer; the candidate for vice president;