What is true about scientific knowledge?

A. It isn't based on observation

B. It changes as new evidence is found

C. It is agreed upon by all scientists

D. It is rarely proven wrong.

Is it D?

What is stream velocity? What type of particles will deposit first then last?

During which of the following phases of the cell cycle Is DNA Replicated

You volunteer for a sleep study and the researchers discover that your blood oxygen level drops many times during the night. It is likely that you have A) sleep-onset insomnia. B)

Which process of respiration happens first

What is the cytoplasm? a) a mixture of sugars and starches b) a mixture of organelles and cytosol c) a matrix of proteins and carbohydrates d) a matrix of fibers

Which of the following describes the solar radiation absorbed by and radiated from earth?

Mutations in DNA are usually caused by chemical or radiation damage to DNA molecules, followed by imperfect repair of the damage. Immediately after this kind of imperfect repair, there may be a mismatched base pair in the DNA.

The Principle of Uniformitarianism is a A.) biased method of dating rocks. B.) complex method of dating rocks. C.) creative explanation for how rocks are made at present. D.) non-testable explanation of how rocks are made at present.

What is ribose in rna

Which parts of the flower are involved in fertilization and the fruit development?