Shapley found the distance to the center of the galaxy by studying the distance to open clusters.
a. True
b. False
Indicate whether the statement is true or false
Question 2
A ZAMS star evolves __________ and to the __________ on the H-R diagram because ________________.
a. downward, left, the core expands which causes the outer layers to expand b. upward, right, the core contracts which causes the outer layers to expand
c. upward, left, the core expands which causes the outer layers to contract d. downward, right, the core contracts which causes the outer layers to contract
The Blue-bearded Bee-eater Nyctyornis athertoni is a large species of bee-eater found in South Asia.
) Ornithine and citrulline, which are not found in proteins
Using Parallax to Determine Distance
The basal ganglia are clusters of gray matter that control learned movement and are involved with ...
Hold baby’s hands and (A) cross arms over chest and then (B) open out to the sides. Repeat several ...
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