When is mitosis complete?

A. When two nuclei have formed

B. When spindle fibers form

C. When chromatids are produced

D. When organelles are produced

Name one disease of the respiratory system and explain what happens

Which would most likely have caused the giant ice caps that existed in the Paleozoic era to melt? A. Increased greenhouse effect O B. Decreased glacier movement O C. Increased plant life O D. Decreased volcanic outgassing

What are endergonic reactions

Where does the mutation in sickle cell anaemia occur?

Describe how overgrazing of grasslands by animals can cause desertification to occur

Which four molecules are the DNA

What are the three possible outcomes when the gametes of a non - disjunction meiosis combines with a normal gamete?

Where do eggs come from

Describe the appearance of the inside of the stomach. how do the rugae within the stomach aid in mechanical digestion?

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