What happens when a muscle contracts? Myosin heads attach to and pull on a series of actin-binding sites.

Calcium produces contractions.

Actin produces myosin and ATP.

Calcium combines with ATP to produce sarcomeres.

Acar traveld with an average speed of 60 miles per hour for 2 hours. how far did it travel

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

“in 1492 columbus sailed the ocean blue” is an example of: a)explicit memory b) procedural memory c) semantic memory d)episodic memory