May we have the choices but i will say human impact
Cytoskeletal filaments provide the basis for cell movement. For instance, cilia and (eukaryotic) flagella move as a result of microtubules sliding along each other. In fact, cross sections of these tail-like cellular extensions show organized arrays of microtubules.
The cytoskeleton of eukaryotic cells is made of filamentous proteins, and it provides mechanical support to the cell and its cytoplasmic constituents. All cytoskeletons consist of three major classes of elements that differ in size and in protein composition.
Microtubules are the largest type of filament, with a diameter of about 25 nanometers (nm), and they are composed of a protein called tubulin. Actin filaments are the smallest type, with a diameter of only about 6 nm, and they are made of a protein called actin. Intermediate filaments, as their name suggests, are mid-sized, with a diameter of about 10 nm. Unlike actin filaments and microtubules, intermediate filaments are constructed from a number of different subunit proteins.
The cytoskeleton is a structure that helps cells maintain their shape and internal organization, and it also provides mechanical support that enables cells to carry out essential functions like division and movement.
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1. A mutation is a "Change" <span>in the nucleotide sequence of a gene within the DNA molecule.
2.</span><span>Chemicals that cause a mutation are known as "Mutagens"
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Answer:
A scanning electron microscope provides much better resolution than a compound light microscope.
Explanation:
The electron microscope uses a beam of electrons and heavy particle like gold for resolution. A compound light microscope works by using light beams and lenses.
The resolution of electron microscope is smaller then the compound microscope. This means that more smaller parts of the specimen can be seen by the electron microscope.
The magnification power of electron microscope is far better then the compound microscope. Hence, a more bigger image can bee seen through the electron microscope.
