It is b because it just is
Answer:
Sarcomere
Explanation:
A myofibril or muscle fiber under an electron microscope shows alternate light band and dark bands. These bands give the skeletal muscle and cardiac muscle a striated appearance. The light band is called the I- band or isotropic band, and the dark band is known as A- band or anisotropic band. In the center of the I-band Z-line is present. It is discovered from a German term Zwischenscheibe (between the disc). The portion of myofibril between one Z-line to the next Z-line is called sarcomere.
The BRAIN. All of the senses send message to the Brain
Answer;
D) Linnaeus primarily used physical characteristics.
Explanation;
-Carolus Linnaeus developed naming system that is still used today, called binomial nomenclature. He is known as the Father of Taxonomy, which is the system of classifying and naming organisms.
-Among is contribution is the development of a hierarchical system of classification of nature, which includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.
-However, some of Carl Linnaeus's classifications of organisms were incorrect because Linnaeus primarily used physical characteristics.