The answer is b. This can be remembered if you know that photosynthesis creates oxygen. Just remember that 'phytoplankton' starts with 'ph' just like 'photosynthesis', and you'll know that phytoplakton also create oxygen.
LED lights shine above to give the plants the energy they need to grow, and expandable plastic walls provide protection for the leaves as they get taller. So far, astronauts have just grown red romaine lettuce
Answer:
1/4 or 25% chance/ probability of having an albino child.
Explanation:
Albinism is a recessive trait, this means that a person need 2 copies of the allele to express this condition. If both parents are normal their genome must be Aa ("A"=normal condition and "a" recessive allele) when they produce gamets they could either be "A" or "a" but when fertilization happens there's a 25% chance of 2 gametes with the recessive trait to meet, hence producing an albino.
It is important to understand that this is only probability. A couple could have 6 children and all of them could be normal.