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borishaifa [10]
2 years ago
9

A global examination of the diversity of tunicates, a marine animal that is related to other chordates, is shown in the graph he

re. The equator displays the greatest number of species of tunicates while the polar regions have fewer. Which statement explains the distribution of tunicates shown in the graph? es​
Biology
1 answer:
Tju [1.3M]2 years ago
3 0

Answer: A) Tropical regions have more available niches into which new species can occupy.

Explanation: USATestPrep

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A nurse assisting a nursing student with medications asks the student to describe how penicillins (PCNs) work to treat bacterial
Mnenie [13.5K]

Penicillins disrupts bacterial cell wall synthesis.

<h3>How does penicillin affect bacterial cell walls?</h3>
  • Penicillin kills bacteria by inhibiting the proteins which cross-link peptidoglycans in the cell wall .
  • When a bacterium divides in the presence of penicillin, it cannot fill in the “holes” left in its cell wall.
  • β-Lactam antibiotics, including penicillins, cephalosporins, monobactams, and carbapenems, are distinguished by a lactam ring in their molecular structure and act by inhibiting the synthesis of the peptidoglycan layer of bacterial cell walls.
  • Penicillins work by bursting the cell wall of bacteria. Drugs in the penicillin class work by indirectly bursting bacterial cell walls.
  • They do this by acting directly on peptidoglycans, which play an essential structural role in bacterial cells.

To learn more about Penicillin from the given link

brainly.com/question/11849121

#SPJ4

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2 years ago
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