Which of the following statements describes a correct fact about cytoskeletal filaments?

a. each of the building blocks of the three major cytoskeletal filaments can bind to and hydrolyze nucleotides.
b. intermediate filaments are typically thinner than actin filaments but thicker than microtubules.
c. all three cytoskeletal filaments are polar structures all three cytoskeletal filaments provide support for the nucleus
d. the building blocks of f-actin and microtubules are globular proteins, whereas those of intermediate filaments are filamentous proteins themselves.

The correct statements that describes cytoskeletal filaments are :

i) Each of the building blocks of the three major cytoskeletal filaments can bind to and hydrolyze nucleotides ( A )

ii) The building blocks of F-actin and microtubules are globular proteins, whereas those of intermediate filaments are filamentous proteins themselves. ( D )

Cytoskeleton is the structure present in cells that helps the cells maintain its structure and organization. some of the functions of the cytoskeleton includes

Cytoskeleton is made up of cytoskeletal filaments which are essentially protein filaments present in the cytoplasm of cells. The intermediate filaments are filamentous proteins.

Hence we can conclude that  Each of the building blocks of the three major cytoskeletal filaments can bind to and hydrolyze nucleotides  and  The building blocks of F-actin and microtubules are globular proteins, whereas those of intermediate filaments are filamentous proteins themselves.

Learn more about cytoskeleton : link

Following are the correct statements about cytoskeleton proteins

Explanation:

A complicated system contained in the cytoplasm that holds a network of protein filaments or fibres is called the proteins of same types of the different organisms. These cytoskeleton aids in the transport of materials from inside and outside of the cells, this happens through a number of inter cellular proteins.The cytoskeleton gives structure and  shape to the cell. Also provides support and helps in movement of intermediate filaments, micro filament and microtubules.

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !