Choose all of the following that accurately describe contractile characteristics of smooth muscle.

a) contraction strength is graded in proportion to the ca2+ concentration of the cytosol.
b) a basal level of ca2+ in the cytosol of some smooth muscles results in a low-level of cross-bridge activity called smooth muscle tone.
c) some inputs to a smooth muscle membrane increase contraction strength, while other inputs decrease contraction strength
d) twitch contractions are "all-or-none," meaning they are the same strength regardless of stimulus strength.
e) a membrane action potential precedes contraction in all types of smooth muscle cells.

answer: hi

explanation:

answer:

okay

explanation:

answer:

// here is code in C++.

#include <bits/stdc++.h>

using namespace std;

//main function

int main()

{

  // variable

 int n;

 cout<<"enter a number:";

 // read the input

 cin>>n;

 // find the square root of the absolute value

 float square_root=sqrt(abs(n));

 // print the square_root

 cout<<"square root of "<<n<<" is: "<<square_root<<endl;

  return 0;

}

Explanation:

Read a number from user and assign it to "n".Then find its absolute value with abs() function.Then calculate the square root of the absolute value with sqrt() function.Print the square root of the number.

Output:

enter a number:-17

square root of -17 is: 4.12311

                                                         This is easy

                                                     sinserly Natalie 7 grader (this is not that hard)

answer:

0.0

Explanation: