What are the small projections of the myosin heads that link the thick and thin filaments?

Biologists use the system of binomial nomenclature developed by linnaeus to assign scientific names to known living organisms which area of society or strengthened by money is contribution to science

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

In the diagram below, the northern hemisphere would be in what season at position a a. fall b. winter c. summer d. spring