Answer:
The correct answer is option - B. proteins.
Explanation:
The muscle contraction needs two protein that is essential in contraction. The muscle has motor protein myosin and spherical protein actin that are slide on one other in contraction that helps in muscle to contraction.
In the contraction, these protein filaments help to change in length and shape of the muscles. Thin filaments involve actin and thick filament in is myosin filaments.
Thus, the correct answer is option - b. proteins.
You didnt exactly put in any answer options...
But here is my answer: Comparing a desert to Mars, i would say that
A desert has oxygen
And mars has carbon dioxide
A desert has sand
Mars has a rocky surface
Mars is a planet
A desert is not
The things i could think of that a desert and planet mars can relate to...I would say they both have heat and both sometimes have dust storms.
Walking does not contribute to global warming.
Answer: All of the finches share common ancestors
Explanation:
