A zygote is formed during a process called

fertilization meiosis mitosis diploid

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?

What is the most common structure of volcanoes?

Match each description of an object’s motion with the position-time graph that represents it. not moving moving with constant speed speeding up slowing down