The arteries take deoxygenated blood back to the heart.
Answer:
<em>Trepa</em><em>nation</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>pro</em><em>cess</em><em> </em><em>whereby</em><em> </em><em>a</em><em> </em><em>hole</em><em> </em><em>is</em><em> </em><em>drilled</em><em> </em><em>into</em><em> </em><em>the</em><em> </em><em>hum</em><em>an</em><em> </em><em>skull</em><em>,</em><em> exposing</em><em> </em><em>the</em><em> </em><em>dura</em><em> </em><em>mater</em><em> </em><em>to</em><em> </em><em>treat</em><em> </em><em>heal</em><em>th</em><em> </em><em>probl</em><em>ems</em><em> </em><em>related</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>intracra</em><em>nial</em><em> </em><em>disea</em><em>se</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>hu</em><em>man</em><em> </em><em>bod</em><em>y</em><em>.</em>
Explanation:
Trepanation is used to treat health problems associated with intracranial diseases, epileptic seizures, migraines and mental disorders by relieving pressure.
The correct answer is option (a). Parent material
The soil horizon refers to distinct layers of the soils, which are parallel to one another, but have a different composition from the layer present above and below to it.
The soil horizon can be divided into four different layers. First one is organic layer, which is the topmost layer, below this layer second layer of topsoil is present. Below top soil, subsoil is present. Below subsoil, the bottom most horizon parent material is present.
<u>Answer:</u>
A mating of two people of medium height (where three genes control height): AaBbCc x AaBbCc produce <u>Seven</u> distinct phenotypes determined by the number of genes inherited.
Option: (D)
<u>Explanation:</u>
- Traits are the characters that we observe. When the parents AaBbCc and AaBbCc are crossed then AABBCC and aabbcc are two different dominant and recessive genomes seen in the offspring.
- Offspring with AABBCC will be height whereas aabbcc will be dwarf. There will be offspring with different heights depending upon the dominant and recessive gene present in them.
- Another genome produced are AABBCc/AaBBCC/AABbCC, next will have four dominant and 2 recessive, next will have 3 dominant and 3 recessive AaBbCc, next will have 2 dominant and 4 recessive, one dominant and five recessive. All together offspring produced will be 64