With the exception of echinoderms, invertebrates are protostomes; chordates, echinoderms and vertebrates are deuterostomes.
<h3>Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances. This myelin sheath allows electrical impulses to transmit quickly and efficiently along the nerve cells.</h3>
Answer:
DNA
Explanation:
The nucleus is a central placed organelle in eukaryotic cells. It is said to contain the "blueprint of life" known as the DNA. The DNA is a structure located in the nucleus of the cell that encodes information necessary for the growth and development of the organism.
This information encoded by the deoxyribonucleic acid (DNA) of the cell includes how the organism will reproduce, hence, DNA is called the blueprint of life.
Answer:
the main charasistic is sometimes good somes bad
Explanation:
Answer:
<h2>Function as Waterproofing and works as a barrier to infection. </h2>
Explanation:
1. Keratinocytes are maintained at various stages of differentiation in the epidermis.
2. Keratinocytes are responsible for forming tight junctions with the nerves of the skin.
3. The outer layer of skin, the epidermis containing keratinocytes, which provides waterproofing and serves as a barrier to infection.
4. It is barrier to foreign particles and provide physical strength.
5. It helps in innate immune system.
