Which of the following is responsible for sensing excessive stretch to protect the muscle? A. Golgi tendon organ
B. Muscle spindle
C. Muscle fiber
D. Sarcomere

Muscle Spindle

Explanation: The muscle spindle is actually a specialized muscle fiber, which detects excessive stretch within the muscle. ISSA CPT Page 357

i would go with b

cytokinesis occurs after telophase so that eliminates d

and the entire reason for cytokinesis is for cellular reproduction

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.