Inactivated X chromosomes form dark spots in the nuclei of stained cells known as ________
Fill in the blank with correct word.
Answer: Barr bodies
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Protocells likely grew within microscopic compartments in porous alkaline vent chimneys, where ____
a. protocells could use the energy provided by H+ gradients b. the vents offered physical protection c. protocells could use readily available ammonia sources d. the vents funneled geothermal warmth e. the vents were the right size
Which of the following statements is FALSE
about energy in molecules?
a. Chemical bonds in molecules contain energy. b. Reactants always have less energy than products. c. Some molecules contain more energy than others. d. Molecules release energy when they react with oxygen. e. When broken, chemical bonds release energy.
Communities evolve to have greater biomass and species richness in a process called
A. sympatric interactions. B. adaptive modifications. C. succession. D. symbiotic relationships. E. competitive exclusion.
The reserve deposits of starch or other compounds found in many prokaryotic cells are called (vacuoles/inclusions/nucleoid)
What will be an ideal response?