This part of the brain is called CEREBELLUM.
The cerebellum is the part of the brain that receives information from the sensory system, the spinal cord and other parts of the brain and then regulate motor movements, such as posture, balance, speech and coordination. <span />
Answer:
Scientists use the geologic time scale to illustrate the order in which events on Earth have happened. ... They used relative dating to divide Earth's past in several chunks of time when similar organisms were on Earth. Later, scientists used absolute dating to determine the actual number of years ago that events happened.
Answer:Eukaryotes only (A) and (D), bacteria only (E) both (B) and (C).
Explanation:
(A) Only eukaryotes have a nucleus.
(B) Both replicate the DNA before performing cell division, so each cell keeps a copy.
(C) This structural feature is called centromere in eukaryotes and in bacteria this role is played by the origin of replication.
(D) Centromeres are eukaryotes exclusive.
(E) Only bacteria have a replication origin.
In eukaryotes, <em>replication takes place in the nucleus</em> as prokaryotes do not have a true nucleus and <em>replication takes place in the cytoplasm</em>. The nucleus of the eukaryotes is the location where genetic material (DNA) is found; in prokaryotes, the genetic material is condensed in the cytoplasm called the nucleoid. There are multiple replication forks or <em>multiple origins of replication </em>in eukaryotes in contrast to prokaryotes which only has <em>one origin of replication. </em>Lastly, replication in eukaryotes <em>occurs at multiple points along the chromosome; </em>in contrast with prokaryotes where it <em>occurs at just one point on the chromosome.</em>
Answer: Beginning from the inside and moving towards outside the sun has six layers. Sun is the ultimate source of energy for all the living organisms on earth. The heat and light that comes out of the sun is through the various layers that is present in the sun.
1. Innermost core: It is the region from where the sun gets all the energy. Here hydrogen and helium is present. Due to high pressure of the surrounding layers hydrogen fuses into helium releasing high energy photons.
2. Radiative zone: The high energy photons are now transferred from core to radiative zone. Here the high energy photons are constantly absorbed and re-emitted. It takes millions and billions of years for these high energy particles to come out of this radiative zone.
3. Convective zone: The temperature of this region is quite cooler as compared to that of core and radiative zone. The plasma present in this region makes the magnetic field of the sun.
4. Photosphere: It is the region where sunspots are found. These are called by the magnetic field of sun.
5. Chromosphere: This region is red in color. It contains filaments of gas that rise up from the surface of the sun. This region is cooler than photosphere.
6. Corona: It is the outermost layer of sun and the temperature is much higher here. Many kinds of gaseous emissions takes place make the sun bright and hot.
