Answer:
A callus is a hardening of skin, keratin is the protein which is abundant in callus. Skin is a protective layer against a external environment. Outer layer of skin consist of keratin which is also found in hair. Callus is the accumulation of dead cells result due to friction and pressure exerts on the part in which they are present. The keratin component (keratinocytes) remains undifferentiated in these dead cells which causes hardening in callus.
Since each codon consist of 3 nucleotides, 4 cordons can be formed by 12 nucleotides. (but please make sure that you check this answer. I am not completely sure)
Different types of species
Answer:
<h3>Peripheral nervous system</h3>
The peripheral nervous system (PNS) is divided into the somatic nervous system and the autonomic nervous system. The somatic nervous system (SoNS) is the part of the peripheral nervous system associated with the voluntary control of body movements via skeletal muscles.
Answer:
b
Explanation:
its an organism consisting of cells in the form of chromosomes with a distinct nucleus.
