Answer:
Option B, kinesthesia
Explanation:
Kinesthesia is also known as Kinesthesis. It is the study of determining both the conscious and unconscious owns' body movements through perception . It makes an individual able to find the change in the position and movement of the body without depending on information from sense organs. However, the senses received from the sensors located in tendons, joints, and muscles also helps us in perceiving this information.
Hence, option B is correct.
Whales use their lower jawbone to the middle ear. whereby they can ear clearly while they are in the water. Human ears and dolphins ears they work the same . They receive sound directly from the air.
In similar way dolphins and human ears are placed in basic anatomical location which is same as on the head. Without a medium hearing is not possible.
The medium sound for human is air. Sound travels 343 meters per second in air and 147 meters per second in water. The most effective way of transmitting sound waves is through water.
We can say that the sound will be fast to travel in medium if the molecules are closer.
The correct answers are evolution, genetic mutation and selection.
The early ancestors of horses showed the pressence of digits and now the modern horses have hooves in their limbs. There could be many reasons for the pressence of hooves horses.
These could be due to the genetic mutations, which could have changed the shape of the digits in the limb. Sudden change in DNA can cause mutation and this mutation can change the phenotype of the horse.
There are chances that evolution took place over a period of time that changed the character in the horse.
Natural selection can also be one of the reason for the change in the phenotype of the digits on the limb of the horses.
Answer;
-Carboxyl group
Explanation;
-Lipids is one of the four important biomolecules, others being, nucleic acid, carbohydrates, and proteins.
-Lipids are made of glycerol and fatty acids. Fatty acids consist of a carboxylic acid (-C=O-OH functional group) with a long un-branched hydrocarbon chain. Fatty acids serve as a precursor for other lipids and are used by the body for energy storage. Fatty acids may be saturated or unsaturated. Saturated fatty acids have single bonds between each carbon, while unsaturated have either a double or triple bonds.