Which statement correctly describes a hypothesis?

A.It is a result of an experiment B.it cannot be testedC.it is a conclusion based on scientific evidenceD.it is directly testable

06/11/19

which statement best describes the big bang theory?

A.The universe began as a ball of energy and has been collapsing since its formation.B.The universe began as a cloud of dust and gas and has been expanding since its formation.C.The universe began... more

Tissue identification in vascular bundle sections?

I always have trouble differentiating the tissues in a vascular bundle. I specially cannot properly identify the vascular cambium and phloem. I know xylem vessel elements are large cells with... more

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