Answer:
Acclimazation PLZ GIVE BRAINLIEST
Explanation:
Answer:
For question 1 the answer is respiratory, and for question 2 is circulatory
Characteristics of human hair such as length, curliness, density, and color are some of the different factors in classifying human hair. Hair can also be classified as to where it grows (such as terminal and vellus hair), and when it grows (like lanugo hair for infants in the womb).
Answer:The above statement is "false".
Explanation:
The following events take place during contraction-relaxation of a muscle:
•Action potential in T tubule activates voltage-sensitive receptors,which in turn trigger Ca ions release from terminal cisternae of sacroplasmic reticulum(SR) into cystol.
•Ca ions bind to troponin;troponin changes shape,removing the blocking action of tropomyosin;actin active sites is exposed.
•CONTRACTION; myosin heads alternatively attach to actin and detach,pulling the actin filaments toward the center of the sarcomere;using ATP in this process.
•removal of Ca ions by active transport into the SR after the action potential ends.
•RELAXATION occurs.Actin and myosin return back to its unbound state.
The answer you are looking for is Proteins. Hope this helps.
