The process in which a solid changes directly to a gas is called

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

Ais a group of individuals of the same that exist together in the same place at the same time

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.