Answer:
True
Explanation:
Bacteria generate toxins which can be classified as either exotoxins or endotoxins. Exotoxins are generated and actively secreted; endotoxins remain part of the bacteria. Usually, an endotoxin is part of the bacterial outer membrane, and it is not released until the bacterium is killed by the immune system.Most viral infections eventually result in the death of the host cell. The causes of death include cell lysis, alterations to the cell's surface membrane and various modes of programmed cell death. Some viruses cause no apparent changes to the infected cell.
Answer:
meiosis I
Explanation:
Reduction of the number of sets of chromosomes occurs during meiosis I.
During Meiosis I crossing over of genetic material occurs between chromosome pairs
Answer:
Maintenance of postural equilibrium is an integrated process requiring optimal muscular balance, joint dynamics, and neuromuscular efficiency using visual, vestibular, and proprioceptive inputs.
Explanation:
Maintaining postural equilibrium involves multiple parts of the body, and can be divided in two levels of control: the first one being on the brainstem, the cerebellum and the spinal cord; and the second one including cortical areas that participate in multisensory integration and control as well as the basal ganglia located in the cerebrum.
Answer:
Bacteria is like eukaryotic cells they have cytoplasm, ribosomes, and a plasma membrane. Features that make a bacterial cell different from a eukaryotic cell the circular DNA of the nucleoid, the lack of membrane bound organelles, the cell wall of peptidoglycan, and flagella.
Explanation:
The answer is <span>Position emission tomography (PET). The nuclear imaging procedure in medicine is able to detect even molecular activities in a cell. They are
therefore effective in detecting cancers, cardiovascular
diseases, neurological disorders, and etcetera. The radionuclides are modeled
such that they accumulate in the targeted organ. They measure sugar (glucose)
metabolism, blood flow, and oxygen utilization.
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