Psychology 101: Is it normal for school age people to have crushes on their teachers or professors?

2. if scientists identify an animal with bilateral symmetry and no segmentation, which phylum can it definitely not belong to? a. roundworms b. annelids c. mollusks d. flatworms

What are some possible short and long term medical concerns for crew members on longer space exploration trips

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species