Answer: B. Chromosomes
Explanation: Chromosomes become visible, the nucleolus disappears, the mitotic spindle forms, and the nuclear envelope disappears. Chromosomes become more coiled and can be viewed under a light microscope.
Answer:
true
Explanation:
Coal is a non-renewable energy source because it takes millions of years to form.
In a child with sore throat, otherwise known as pharyngitis, the most common etiologic agent that causes pharyngitis is adenoviruses. Although, with a high grade fever and a red, inflamed throat, a bacterial etiology can be considered and the most common bacterial agent in pharyngitis is <em>Streptococcus pyogenes. </em>There are suppurative and non-suppurative complications following an untreated streptococcal infection. Suppurative complications (which involves pus) includes tonsillar abscess or collection of pus within the tonsils, otitis media or the infection of the middle compartment of the ear canal, sinusitis, etc. The non-suppurative complications are more serious than suppurative complications. There are two non-suppurative complications, (1) acute rheumatic fever which can progress to rheumatic heart disease which affects the valves of the heart and can ultimately lead to heart failure, and (2) acute glomerulonephritis which involves streptococcal antibodies attacking the glomerular basement membrane in the kidneys and this will present as oliguria (decreased urine production), hypertension (from fluid overload), and hematuria (blood in the urine).
I don’t think this question makes sense. Different elements with different Z possess different physical and chemical properties...
Answer:
When a foreign antigen or pathogen enters our body, our immune cells detect it and generate a response by producing antibodies against it. Also, our immune cells generate memory cells so that our body remembers this pathogen if it invades the body afterwards. Hence, it takes less time for an organism's body to generate a response when a pathogen invades for the second time. The memory cells immediately detect the pathogen and a response is generated.
