Can you please include the pairs?
Cardiac muscle fibers function is to contract the heart.
Flowering plants reproduce sexually through a process called pollination. The flowers contain male sex organs called stamens and female sex organs called pistils. The anther is the part of the stamen that contains pollen. This pollen needs to be moved to a part of the pistil called the stigma .
It is a controlled experiment as everything is the same apart from one variable
