I don’t know but I’m not gonna put somthig random so you get it wrong
Answer:
The correct answer is - molars.
Explanation:
Mechanical digestion takes place inside the mouth of an organism by the process called masticating with the help of teeth. There are four types of teeth in the mouth all help in the digestion of the feed incisor cuts the food, canines tear the food, premolars, and molars chew or masticate the food.
The main and major tooth that helps in mechanical digestion is the molar to chew food so it can mix with the saliva to make bolus and chemical digestion.
Answer:
a neutral marker
Explanation:
A gene polymorphism can be defined as the existence of two or more variants of the same gene (i.e., alleles). A polymorphism may be a difference of one nucleotide base in DNA (single nucleotide polymorphisms, SNPs) or indels (i.e., insertions and deletions). A gene under selection will have many polymorphisms in its sequence which may lead to convergence and disproportionate divergence among sequences, and thereby will be uninformative to trace the evolutionary history among individuals within a species, population, etc. Conversely, neutral molecular markers exhibit fewer nucleotide differences, it is for that reason that they are commonly used to determine genetic population structure among individuals.
Answer:
The binding of acetylcholine to its receptor activates the muscle and causes a muscle contraction. In myasthenia gravis, antibodies (immune proteins produced by the body's immune system) block, alter, or destroy the receptors for acetylcholine at the neuromuscular junction, which prevents the muscle from contracting
