Carbon does have 4 bonds, which makes it pretty universal.
Answer:
Option (A).
Explanation:
The muscle contains the different type of proteins that helps in the contraction of muscles and the movements of different body parts. The proteins are actin, myosin, nebulin and tropomyosin.
The binding of the troponin with the calcium result in the confrontational change. This twists the another protein tropomyosin. This helps in the exposure of the actin-myosin binding site. Later, the ATP acts as the main factor for the muscle contraction.
Thus, the correct answer is option (A).
Answer:
<em><u>Lizard</u></em><em><u> </u></em><em><u>is a poikilothermic animal </u></em><em><u>because</u></em><em><u> </u></em><em><u>lizards</u></em><em><u> </u></em><em><u> </u></em><em><u>are</u></em><em><u> </u></em><em><u>those</u></em><em><u> </u></em><em><u>animals that do not require a fixed body temperature, their temperatures can fluctuate with little to no adverse effects to their overall health. </u></em>
Explanation:
<em>Reptiles are cold-blooded, or ectothermic, animals. This means that they cannot produce heat in their own bodies, and have to rely on their surroundings to keep warm. </em><em> By moving in and out of sunlight, reptiles can keep their body temperature at a steady level throughout the day.</em>
