A cross bridge cycle occurs when actin (A) combines with myosin (M) and ATP to produce force, adenosine diphosphate (ADP) and inorganic phosphate (Pi). The cross bridge cycle is a series of molecular events that occur after excitation of the sarcolemma.
<span>The systemic study of natural world is called natural science. It is
concerned with the understanding of natural phenomena based on collected data,
knowledge or sense of experience by means of observation and experimentation. Natural
science is subdivided into two main branches: one is biological science or life
science which aims to study life and living organisms their function,
structure, evolution, growth, distribution and taxonomy second is physical
science which is also broken down into different branches, including Earth
science, astronomy, chemistry and physics.
</span>
I think the correct answer would be the third option. Organisms that help break down dead organic material so it can be recycled into a usable form for other organisms are called decomposers and this would include some of the bacteria. Also, there is a number of bacteria that are capable of breaking down some of the harmful products like in recent studies there are bacteria that could dechlorinate the toxic PCB substance. Some bacteria, as well, lives in the human intestines which aids in the breaking down of the food into useful molecules. The third option is partially true since there are some bacteria like the cyanobacteria which produces oxygen but it does not contribute largely to the oxygen present in the atmosphere.
the part of a green plant shows the greatest increase in chloroplasts b y the end of spring is A. Leaf
The correct answer is: A. Species A had more massive jaw muscles than species.
Massive jaw muscles are correlated to more primitive diet. It is believed that shrinking jaw muscles is part of the evolution. It is the way for making the space for a bigger brain.
