Spindle fibers<span> form a protein structure that divides the genetic material in a cell. The </span>spindle<span> is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both </span>mitosis<span> and meiosis. Spindle fibers are called mitotic spindle during mitosis.</span>
Answer:
Option A
Explanation:
As we all know, energy can never be created . Also it can never be destroyed. However, it can only be changed from one form to the other. In this case, when a pool ball is striked by a stick, the kinetic energy of stick is transferred to the ball along with release of sound. Sound is just another form of energy.
Now, when this ball strikes other balls, the same process is repeated i.e the ball strikes another ball and passes on its kinetic energy along with release of sound energy. Every time sound is released, the amount of kinetic energy transferring from one body to other reduces.
Option A is correct
Answer:
about 5% of the ocean had been explored as of this video being filmed in 2007.
Explanation:
He said it in the video
They might contain index fossils..
. Igneous rock is formed through the cooling and solidification of magma<span> or </span>lava<span>. The magma can be derived from </span>partial melts<span> of existing rocks in either a </span>planet<span>'s </span>mantle<span> or </span>crust<span>. Typically, the melting is caused by one or more of three processes: an increase in </span>temperature<span>, a decrease in </span>pressure<span>, or a change in composition. In this case, the "rock" is ice. The hot water has cooled through a change of temperature to create a solid structure (ice).</span>
