Answer:
Claim: A tissue is made up of many similar cells that are connected and organised.
Evidence: In cardiac muscle tissue, group of cardiomyocytes are joined in the same direction.
Claim: Cells in a tissue work together to allow the tissue to carry out its function.
Evidence: In cardiac muscle tissue, group of cardiomyocytes expand and contract at the same time.
Explanation:
Cells are the building blocks of life, and a group of specialized cells form a tissue, which has a specific function.
In human heart, the cardiac muscle tissue is a specialized type of striated muscle tissue formed from cardiomyocytes. Their fibers are branched, have a single nucleus and are joined together by intercalated discs. This tissue contracts and releases involuntarily and helps the heart to pump blood throughout the body. Cardiac muscle cells (cardiomyocytes) are the muscle cells which form the cardiac muscle tissue. They are responsible for the rhythmic beating of the heart by expanding and contracting at the same time.
Answer:
The atomic number is 79 and the atomic mass is 197.
Explanation:
The atomic number (symbol Z) of a chemical element is the number of protons within its nucleus.
Gold (chemical symbol Au) is a chemical element with 79 protons in its nucleus, therefore with atomic number 79.
The atomic mass is the average mass of the atoms of an element (in atomic mass unit). The atomic mass is the weighted average of all the isotopes of a a particular element. For each isotope the atomic mass is approximately the mass of both protons and neutrons since electrons make minor contributions.
The atomic mass of Gold (Au) is 196.9665 but, it can be rounded to 197.
Answer:
knowledge of the sequence product
Explanation:
A gene knockout is a technique used in molecular genetics to deactivate target genes in an organism in order to study their functions by reverse genetics (i.e., gene loss). Knockouts are generated by different methods including, for example, homologous recombination or site-specific nucleases (zinc-fingers, TALENS, CRISPR/Cas9). These techniques require to know a priori the sequence of each gene to be knocked out in order to target desired mutations. In the last years, the CRISPR/Cas9 tool has gained attention to knockout genes of interest because it is a genome editing system that can be easily used for deletion or insertion of bases.
Answer:
Sheep carrying out respiration
Explanation:
Because the sheep is exhaling carbon dioxide into the air
