The mitotic spindle is composed of ______________ and grows from the _______________ toward the center of the cell.

Fill in the blank(s) with the appropriate word(s).


Ans: microtubules; centrosome

Biology & Microbiology

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Oxytocin can generate feelings of well-being as well as anxiety and stress

Indicate whether the statement is true or false.

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________ is a long, seasonal torpor characterized by a cessation of activity

Fill in the blank(s) with correct word

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Two primary factors in shaping the polarity of the body axes in chick embryos are _____

A) light and temperature B) salt gradients and membrane potentials C) gravity and pH D) moisture and mucus

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Radioactive iodine (131I) is commonly used in medical situations for diagnosing and treating thyroid conditions. The most common isotope of iodine that is not radioactive is 127I. Chemically, what is the difference between 127I and 131I? What do they

have in common? What will be an ideal response?

Biology & Microbiology