Examlex
Charles Messier published the first galaxy catalog containing over 2,000 nearby galaxies.
Dopamine
A neurotransmitter in the brain that plays a significant role in reward, motivation, memory, and motor control.
Prelinguistic Vocalizations
Early forms of vocal communication used by infants that precede the development of language and speech.
Deferred Imitation
A cognitive process where an individual reproduces the behavior of another person after some time has elapsed since initially observing that behavior.
Neonates
Newborn infants, especially within the first month after birth.
Q16: If you measure the average brightness and
Q17: If a galaxy had no dark
Q20: By measuring the star formation rate in
Q21: Explain how computer simulations of structure formation
Q37: An H II region signals the presence
Q42: If you observed a gas cloud
Q58: If you found a galaxy with
Q78: In a universe with an accelerating expansion
Q87: If you wanted to study regions where
Q90: Galileo supposedly experimented with gravity by dropping