Biology, 16.09.2019 23:30, rhussein6452
One of the most common causes of pneumonia is streptococcus pneumoniae, a gram-positive bacterium. surrounding the bacterium is a thick structural component layer known as a capsule. this capsule is made up of repeating molecular units and serves as a sticky, protective macromolecule. there are over 84 known different molecular configurations of capsule, and it is the primary component of vaccines against this organism. the capsule is the antigen that we commonly detect in the serology testing referred to in the previous question. based on the information given about capsules, which of the following types of molecules would you suspect comprises an s. pneumoniae capsule?
a. monosaccharide carbohydrate
b. triglyceride lipid
c. polysaccharide carbohydrate
d. disaccharide carbohydrate
e. adenosine triphosphate
Answers: 1
Biology, 21.06.2019 19:50, bgallman153p71edg
Which of the following statements about c4 carbon fixation is not true? a c4 carbon fixation is an adaptation for plants exposed to high light intensityb. c4 carbon fixation occurs in more plants than c3 carbon fixation. c c4 carbon fixation is more common in areas of high temperatures than c3 carbon fixation. d. c4 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.
Answers: 3
Biology, 22.06.2019 02:00, badpotterchris
How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.
Answers: 1
Biology, 22.06.2019 07:30, queenjade582
Answer ! in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.
Answers: 2
Biology, 22.06.2019 10:00, milesjreece3939
The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .
Answers: 1
One of the most common causes of pneumonia is streptococcus pneumoniae, a gram-positive bacterium. s...
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