What is the next step in muscle contraction after the actin changes shape?
a. myosin binds to actin.
b. a calcium ion binds to actin.
c. myosin and actin slide past each other.
d. an atp molecule binds to the myosin.

Select the correct answer. a chestnut-colored horse mates with a white-colored horse to produce a brown and white spotted offspring. what is the type of inheritance pattern?

Why do oceanic plates tend to subduction when colliding with a continental plate

Below are the three main organs that make up the plant body. what is the main function of the structure that is identified as b in the picture above? it anchors the plant.it produces food.it absorbs nutrients.it supports the plan