William Smith and Georges Cuvier
Answer: If there are 52 chromosomes then 51 chromosomes are autosomal and 1 pair will be sex related.
It is valid in diploid condition.
Explanation:
We can rule out small fish and grasses. My guess is that zooplankton get their energy from phytoplankton, because phytoplankton use photosynthesis to get their energy.
One half of a duplicated chromosome is called a sister chromatid