Examlex
Which star spends the longest time in the protostellar phase of life?
Prime Mover
A prime mover, in anatomy and physiology, refers to the muscle that plays a leading role in performing a particular movement by contracting, while other muscles may play supportive or stabilizing roles.
Fixator
A muscle or muscle group that stabilizes the origin of another muscle to enable effective action of the muscle.
Antagonist
A substance that binds to a receptor and blocks or dampens a biological response by inhibiting the effect of an agonist.
Agonist
An agonist is a chemical that binds to a receptor and activates the receptor to produce a biological response.
Q7: If the hypothesis tracing the extinction of
Q9: What is the galactic fountain model?<br>A)the idea
Q11: Where would a brown dwarf be located
Q23: What two observable properties of a Cepheid
Q34: On a Hertzsprung-Russell diagram,where would we find
Q41: What kinds of objects lie in the
Q55: Do you think it is possible that
Q58: Current techniques can measure stellar motion to
Q66: Why would anyone be interested in mining
Q141: Which cluster is the youngest?<br>A) <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB1588/.jpg"