What three reasons show that aquarium 1 has the most stable ecosystem? 1)
aquatic plants 400g
fish that eat plants 40g
fish that eat fish 4g
bacteria .001g

2)
aquatic plants .1g
fish that eat plants 4g
fish that eat fish 40g
bacteria 400g

3)
aquatic plants .1g
fish that eat plants 4g
fish that eat fish 40g

4)
aquatic plants 400g
fish that eat plants 40g
fish that eat fish 4g

Explanation:

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there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).