Answer:
The cardiac muscle is made up of branched muscle cells, which have 1 or 2 nuclei and which the contact area between the heart fibers gives rise to specialized regions at the level of the plasma membrane called intercalary discs. The intercalary discs unite the cardiac muscle cells with each other, which provides greater adhesion to the tissue and intervenes in the rapid communication between cells. This allows its simultaneous contraction and the production of the beat.
Explanation:
The intercalary discs are the union systems that associate the cardiac muscle cells to form the myocardial fibers, the cardiac muscle is the muscle tissue of mixed components, which is located exclusively in the walls of the heart. For this reason, it has the function of generating the necessary contractions for the blood to reach all parts of the body.The intercalary discs are a special type of intercellular junction, a gap that guarantees electrical communication between these cells; and on the other hand, it provides places of adhesion and anchorage of one cell with another. The intercalary discs provide the structural foundation that allows the heart to behave as a functional syncytium.
Explanation:
Because dense minerals are heavier and drop to the stream bottom, lighter minerals are carried along in the current of the stream. Why do you think that mining on land is less costly than mining in the deep ocean is? It is easier to get to land than the ocean and you need special equipment to go under water.
Many scientists use the term seismic wave to describe tsunamis, since these waves are often created by seismic, or earthquake, activity along the ocean floor. Tsunamis can also arise through a sudden and massive undersea movement, such as a landslide or volcanic eruption.
Answer: c. Bird droppings that contain seeds from a different location
In the 1800s the matter was divided into two categories
which are:
1) Organic matter
2) Inorganic matter
<span>The difference between them was that organic
referred to living matter which have life in them as opposed to inorganic
matters which are lifeless or are of geological nature such as rocks,
mountains, minerals etc.</span>
