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What are thepulverized rock lava ash and other fragments ejected from the vent of a volcano called?
These materials are called pyroclastic materials. They are produced during explosive volcanic eruptions when magma is fragmented into rock fragments and ash by the force of the explosion. Pyroclastic materials can vary in size from tiny particles of ash to large blocks and boulders.
Which type of volcano conists of layers of lava flow and pyroclastic material?
A composite cone is the type of volcano that consists of layers of lava flows and pyroclastic material. A stratovolcano is an example of a composite cone.
What structure forms in prophase along which the chromosomes called?
The answer is Spindle Fibers.
The framework of microtubules that appears in cell division which eventually moves the chromatids apart is called the?
spindle apparatus
Why are pyroclastic flowssometimes called glowing avalanches?
Pyroclastic flows are sometimes called glowing avalanches because when they move up they appear to glow.
Define pyroclastic material and list three examples?
Pyroclastic material consists of fragments of rocks that forms during a volcanic eruption. Pyroclastic particles that are less than 2mm in diameter are called Volcanic Ash. Volcanic ash that are less than o.25 mm in diameter is called volcanic Dust. Large Pyroclastic particles that are less than 64 mm in diameter are called Lapilli
Which volcanic shape is composed of both pyroclastic material and lava?
This describes a stratovolcano, also called a composite volcano.
What are thepulverized rock lava ash and other fragments ejected from the vent of a volcano called?
These materials are called pyroclastic materials. They are produced during explosive volcanic eruptions when magma is fragmented into rock fragments and ash by the force of the explosion. Pyroclastic materials can vary in size from tiny particles of ash to large blocks and boulders.
Which type of volcano conists of layers of lava flow and pyroclastic material?
A composite cone is the type of volcano that consists of layers of lava flows and pyroclastic material. A stratovolcano is an example of a composite cone.
What structure forms in prophase along which the chromosomes called?
The answer is Spindle Fibers.
The framework of microtubules that appears in cell division which eventually moves the chromatids apart is called the?
spindle apparatus
Why are pyroclastic flowssometimes called glowing avalanches?
Pyroclastic flows are sometimes called glowing avalanches because when they move up they appear to glow.
What Pyroclastic material less than 0.25mm in the diameter called?
Pyroclasts are single fragments that are produced following a volcanic eruptions where there expanding gases rapidly erupt resulting in either the fragmentation or obliteration of rock and magma. Fine-grained pyroclastic material is generally made from ash cause by extremely high fragmentation of rock or magma.
What is small volcanic cones made entirely of pyroclastic material?
Oh, dude, those little guys are called "cinder cones." They're like the mini volcanoes of the volcanic world, made entirely of pyroclastic material. So, if you ever need a cute volcano for your backyard, that's the one to go for.
What is the structure for spindle fibers?
During the metaphase of cell division, the spindle fibers radiate from the centrioles at the opposite poles of the cell. When the spindle fibers start to pull the chromosomes to opposite poles, this marks the anaphase of cell division.
What is the array called when spindle fibers radiate from the centrosomes?
The array is called the mitotic spindle. It is made up of microtubules that radiate from the centrosomes and are crucial for the separation of chromosomes during cell division.
How is the spindle formed?
At the beginning of nuclear division, two wheel-shaped protein structures called centrioles position themselves at opposite ends of the cell forming cell poles. Long protein fibers called microtubules extend from the centrioles in all possible directions, forming the spindle.
