you are correct, it would be D. i hope this helps you out!
The density of a population of living organisms is usually measured in individuals on one square km. In here we have 50 earthworms on an area of 5 square meters, thus we have 10 earthworms on every square meter. In order to get to the result we need to see first how many square meters there are in one square km. One square km has one thousand meters of length and one thousand meters of width so:
1,000 x 1,000 = 1,000,000 km²
Since we established that we have 10 earthworms on every one square meter, we just need to multiply the number of square meters with the amount of earthworms on every square meter:
1,000,000 x 10 = 10,000,000
So we have a density of 10 million earthworms per square km.
Through the use of the capsule, the pathogenic streptococcus pneumoniae's virulence factor supports survival by inhibiting bacterial adherence to phagocytes.
<h3>What is Streptococcus pneumoniae,</h3>
Streptococcus pneumoniae, also referred to as pneumococcus, is a spherical, gram-positive, anaerobic species of the genus Streptococcus that is capable of alpha- or beta-hemolysis. They frequently exist in pairs, don't make spores, and are stationary. Streptococcus pneumoniae is the most frequent cause of middle ear infections, sepsis (blood infection) in children, and pneumonia in elderly and immunocompromised individuals. Meningitis, an infection of the membranes that protect the brain and spinal cord, or sinus infections may also occur from it. A serious human pathogen is Streptococcus pneumoniae. An essential virulence factor is the pneumococcal capsule's thickness, which reduces phagocytosis.
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Explanation:
Irreducible complexity (IC) involves the idea that certain biological systems cannot evolve by successive small modifications to pre-existing functional systems through natural selection.
Answer:
I think maybe its enzymes?