Given a scientific passage and an answer, generate a question for the given answer.

Passage: Christopher Auyeung, using bat image by User:Rugby471/Wikimedia Commons. Bats use echolocation to identify the location of objects . CC BY-NC 3.0 (bat image available under public domain). Answer: echolocation
What do bats use to determine the location of objects?

Passage: Electrons are always added to the lowest energy level first until it has the maximum number of electrons possible, and then electrons are added to the next higher energy level until that level is full, and so on. The maximum number of electrons at a given energy level depends on its number of orbitals. There are at most two electrons per orbital. Answer: the lowest
Electrons are always added to which energy level first?

Passage: The sporozoans are protists that produce spores, such as the toxoplasma . These protists do not move at all. The spores develop into new protists. Answer: sporozoans
What is the term for protists that produce spores, such as the toxoplasm?