Which property of muscle tissue gives it the ability to contract and relax?
a. presence of neurons
b. presence of actin and myosin
c. presence of the extracellular matrix
d. presence of secretory structures

The correct answer is B.

Muscle contraction is the physiological process in which muscles develop tension due to an extension stimulus.

The contractions are controlled by the central nervous system. While the brain controls voluntary contractions, the spinal cord controls involuntary reflexes. The Actin and myosin make up 90% of muscle proteins, intervening in muscle contraction and relaxation.

silk

indigo  

rice

all the other answers are wrong

the amount of the purse is, $120.

tax rate =9%

first find the the total tax she paid on the amount is equal to the 9% of $120 i.e,

now,

total amount paid by shalika = $120 +$10.8 = $130.8