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DanielleElmas [232]
2 years ago
9

How are castor seeds dispersed

Biology
1 answer:
ozzi2 years ago
6 0

Answer:

seeds can be disperse by rodent and birds, on mud adhering to boot, on vehicle and machinery, and by flood water. It is also spread by an explosive mechanisms( on local level) when the capsule dries up and splits

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The cell cycle is the regular sequence of growth and division that cells undergo.<br> True or false?
SVETLANKA909090 [29]

Answer:

True

Explanation:

The regular sequence of growth and division that cells undergo is known as the cell cycle. During the cell cycle, a cell grows, prepares for division, and divides into two new cells, which are called “daughter cells.” Each of the daughter cells then begins the cell cycle again.

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The key element in the biological concept of species is that individuals within a species can
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 the key element in the ecological concept of species is that individuals within a species can successfully interbreed and conceive healthy offspring
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A microbiologist was surprised when he could not recover Helicobacter pylori from gastric biopsies in which organisms were seen
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A microbiologist was surprised when he could not recover Helicobacter pylori from gastric biopsies in which organisms were seen in the tissue sections. He was advised to switch from the Campy BAP selective medium to Skirrow's blood agar because the latter is free of cephalothin.

  • A broad-spectrum cephalosporin antibiotic called cephalothin is used to treat severe bacterial infections in the urinary tract, skin, bones, and lower respiratory tract.
  • A beta-lactam, first-generation cephalosporin antibiotic with bactericidal activity, cephalothin is semi-synthetic.
  • Penicillin-binding proteins (PBP) on the inner membrane of the bacterial cell wall are bound by cephalothin and rendered inactive.
  • PBPs take involvement in the last phases of bacterial cell wall construction as well as the remodeling of the cell wall during cell division.
  • PBP inactivation hinders the cross-linking of peptidoglycan chains, which is essential for the strength and stiffness of bacterial cell walls.

learn more about cephalothin here: brainly.com/question/7385027

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2 years ago
Photosynthesis
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Answer:C - carbon dioxide

Explanation:

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Would the coupling of the processes shown below be found in a eukaryotic cell? explain why or why not. A diagram of transcriptio
nika2105 [10]

Polyribosomes are groups of ribosomes linearly arranged, associated with mRNA, and producing several copies of proteins. The coupling of processes shown in the image can not be found in eukaryotic cells.

<h3>What is a polyribosome?</h3>

A polyribosome is a group of single ribosomes associated with an mRNA molecule and producing simultaneous translation events of the same protein.

Polyribosomes can be found in both prokaryotic and eukaryotic cells. However, translation occurs at different moments and places in these cells.

⇒ In a prokaryotic cell

Polyribosomes can act before transcriptional termination occurs.

While transcription is still happening, ribosomes can produce many polypeptide copies.  

This is because

  • both transcription and translation occur in the cytoplasm simultaneously.

  • transcription and translation directions are 5' to 3'.

  • mRNA does not need to be modified after transcription.

⇒ In eukaryotic cells

Polyribosomes are found in the cytoplasm but only when

  • the transcription process is over,
  • the mRNA molecule is already modified and left the nucleus.

Since transcription occurs in the nucleus and translation in the cytoplasm, they can not be simultaneous.

According to this information, the coupling of processes shown in the image can not be found in eukaryotic cells.

You can learn more about  eukaryotic and prokaryotic translation at

brainly.com/question/13261547

brainly.com/question/16985142

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