Why would the sun move even though its velocity is set at zero when a planet revolves around it?

Answer;

Because the planet pulls the Sun toward it.

The sun moves even though its velocity is set at zero when a planet revolves around it because the planet pulls the Sun towards it.

The reason the planets orbit the Sun is related to why objects fall to Earth when we drop them, this is the Sun's gravity that pulls on the planets.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

d. organisms have cells with different shapes and functions.