carbon cycle: photosynthesis
What will be an ideal response?
plants absorb carbon dioxide gas from atmosphere and use energy from the sun to convert it into simple sugars
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Which of the following is NOT a type of epigenetic inheritance?
A. maternal effect B. X inactivation C. imprinting D. extranuclear inheritance E. neither maternal effect nor extranuclear inheritance
From which chamber of the heart does the right ventricle receive blood?
a. right atrium. b. left atrium. c. left ventricle. d. none of the above.
Mendeleev found that when he arranged the known elements according to their atomic mass, the entries in the table exhibited a pattern of chemical properties that repeated itself in groups of eight elements. This led to the generalization now known as:
A. an atomic model. B. the periodic table. C. valance electrons. D. the octet rule.
There are many organs and glands of the endocrine system, but which one is the master controller?
A. The hypothalamus B. The thyroid C. The pituitary D. The pancreas