Review of A&P I (part 2-Tissues Help Save & Exit Submit Saved Which of the following is/are true about the functions of cardiac muscle? Check all that apply. 277 Check All That Apply coints Skipped Cardiac muscle olmost always utilizes oerobic respiration to obtoin energy Cardlac muscle cells require nervous innervation for stimulation. References Cardiac muscle secures some of its calcium ions from the sarcoplasmie reticulum. When the chombers are filled with blood, the myocytes utilize tight junctions to resist seporation Autorhythmic cells allow the myocytes to contract consistently and regularly, efficiendy pumping blood from the chambers.

Use Newton's third law to explain the forces involved in walking on level ground. According to Newton's third law, with each step the ground applies a forward force on the walker in reaction to the walker's backward force on the ground. the walker's foot exerts a forward force on the walker in reaction to the backward force the foot exerts on the ground. the walker applies a forward force and the ground experiences a backward force in response. O the ground propels the walker forward in reaction to the force of gravity on the walker by the Earth.

Identify the highlighted structure.

<p>How to free trial?&nbsp;</p>

Draw a Lewis structure for ethanol <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="minner"><span class="mopen delimcenter" style="top:0em;">(</span><span class="mord"><span class="mord mathrm">C</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3011em;"><span style="top:-2.55em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">2</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord"><span class="mord mathrm">H</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3011em;"><span style="top:-2.55em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">5</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord"><span class="mord mathrm">OH</span></span><span class="mclose delimcenter" style="top:0em;">)</span></span></span></span></span>, then answer the following questions about the structure: Number of valence electrons: Number of bonding electrons: Number of non-bonding electrons: Tries 4/99 Previous Tries Identify the fault, if any, in each of the following Lewis structures for ethanol. If more than one answer appl A Incorrect: Wrong molecular formula. B Incorrect: Correct molecular formula but wrong structural formula. Incorrect: Not enough electrons. Incorrect: Too many electrons. E Incorrect: Correct number of electrons, but octet rule violated. <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.6833em;"></span><span class="mord mathrm">F</span></span></span></span> Correct: Octet rule violation is permitted in this case. G Correct: But a better resonance structure exists. Identify: The electron pair geometry of the oxygen atom in ethanol. The molecular geometry of the central carbon atom in ethanol. The hybridization of the oxygen atom in ethanol. The electron pair geometry of the terminal carbon atom in ethanol. The electron pair geometry of the central carbon atom in ethanol. The approximate size (in degrees) of the <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.7667em;vertical-align:-0.0833em;"></span><span class="mord mathrm">C</span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:0.7667em;vertical-align:-0.0833em;"></span><span class="mord mathrm">O</span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:0.6833em;"></span><span class="mord mathrm">H</span></span></span></span> bond angle in ethanol. Tries 1/99 Previous Tries