It is C. Because the other 3 are in side of the the cell membrane to be protected.
Multicellular organisms can be much larger and more complex. This is because the cells of the organism have specialised into many different types of cells such as nerve cells, blood cells, muscle cells all performing different functions.
<h2>Specialists and Generalists </h2>
Explanation:
Niche is the role played by an organism that how it lives in an environment
Specialists
- Species that have narrow niches are called specialists and this type of niche is called realized niche
- It is narrow because of the presence of ecological barriers and is the space where a species actually lives
Generalists
- Species that have broad niche are called generalists and this type of niche is called fundamental niche
- It is larger than the realized niche due to absence of ecological barriers
- It represents all the environmental conditions where a species is able to live or can live
I believe that sliding filament model of contraction states that; during contraction, the thin filaments slide past the thick filaments so that actin and myosin filaments overlap. According to this model the myosin or thick filaments of muscle fibers slide past the actin or thin filaments during muscle contraction, while the two groups of filaments remain at relatively constant length.
