Which star has a greater absolute brightness?
select one:
1) aldebaran
2) sun
3) sirius b

Select the correct answer. which statement applies only to the axial skeleton, not the appendicular skeleton? a. it contains a pivot joint. b. it has muscles attached that work in pairs. c. it contains red bone marrow. d. it possesses fossa for bone articulation. e. it protects the heart and lungs.

Plants need carbon dioxide from their environment to produce glucose during which stage of photosynthesis?

Agroup of students are walking in the park and one of them takes a picture of a pollen grain that is been blown by the wind what caption can the student use for this picture