In bears, black fur B is dominant to brown fur b and Small snout S is dominant to big snout s. A female bear with black fur and a big snout is crossed with a male bear with brown fur and small snout. Their offspring have brown fur and a big snout. What is the genotype of the parent bears? Explain your reasoning.

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

trachea, alveoli, lung capillaries, arteries

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

c is the correct answer!