Microtubules contribute to each of the following except a) mitotic spindles. b) filopodial structure. c) the human red blood cell disklike shape. d) orientation of plant cellulose microfibrils. e) intracellular transport.

Explanation:

The microtubules are made up of tubulin proteins and are hollow tubes that gives shape to the cell and organelle place in the cell. The movement of organelles occurs due to the transport function provided by the microtubules.  

Microtubules contribute to spindle apparatus involved at the time of cell division. The RBCs size is maintained by stiffness of microtubules. The microfibrils walls are arranged  parellely with cortical microtubules. The microtubules also function in intracellular transport of organelles and vesicles (membrane-bound). Thus, option b is correct.

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autosomal

explanation:

is a term used in genetic genealogy to describe dna which is inherited from the autosomal chromosomes

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.