Answer:
The different sentences that belong to different groups are given as follows:
Bacteria
A common genus is Pelagibacter.
Some types found in the photic zone carry out aerobic photosynthesis.
They are the predominant prokaryotes above 1000m
Archaea
Below 1000m the most common phylum is Thaumarchaeota.
Most of these living below 1000m are thought to be ammonia oxidizers.
They increase to near 50% of total prokaryotes below 1000m
Viruses
Most are inactivated by hydrolytic enzymes or sunlight
Turnover in sea water is relatively rapid, the populations are replaced within a few days or weeks
They are the most numerous biological entities in seawater
B. meiosis. This process randomly rearranges the pairs of homologous chromosomes in formation of the sex cells. In addition, there is crossing-over of the chromatids while the homologous chromosomes are synapsed during meiosis I.
C. Are vascular is the answer
Answer:
The best answer to the question: These cellular structures are utilized in strong involuntary muscle contractions and transmission of electrical impulses, would be: T-Tubules.
Explanation:
In both skeletal and cardiac muscle, not smooth muscle, because of the way that the muscle fibers are conformed into tight bundles of sarcomeres (skeletal muscle) and myocardiocytes (cardiac muscle), there is a need for a series of structures that will ensure that when there is a stimulus from the nervous systems, these stimulus will propagate to all the cells in the fibers, and not just one.
Aside from counting with a neuromuscular motor plate, which will receive the neurotransmitter from the nerve endings and produce the appropriate reactions, as well as propagate that reaction to all the cells that are being stimulated, muscle fibers also have a structure known as T-Tubules. T-Tubules are formations much like roadways of cell plasma membrane that connect not just one, but all the cells within a muscle fiber so that once a stimulus comes, all the cells will initiate the process of calcium release and action potential propagation. These T-Tubules will ensure that electrical impulses reach all muscle cells and that all cells react at the same time as needed.
