Can someone please help me I really need help thank you

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

The diagram shows a chicken embryo and a human embryo