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Stella [2.4K]
2 years ago
10

Help brainliest involved!!:)

Biology
2 answers:
Ymorist [56]2 years ago
4 0

Answer:

the anwser is <u>B. Scrapings from his teeth</u>

Explanation:

hope this helps :)

marin [14]2 years ago
4 0

Answer:

Scrapings from his teeth

Explanation:

He described 'moving animals' in the plaque between his teeth

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Question 4
Juliette [100K]

Answer:

In eukaryotes, thousands of chemical reactions are able to take place in  separate compartments called organelles.

Explanation:

Organelles are specific cellular structures that are the means of compartmentalizing the various functions that occur within cells.

Examples of organelles and their functions are:

- <u>Nucleus</u>: contains DNA and in it occur the replication of this molecule and its transcription into RNA.

- <u>Rough endoplasmic reticulum</u>: protein synthesis and conjugation of these molecules occurs.

- <u>Mitochondrion</u>: houses all oxidative phosphorylation reactions and the electron transport chain for ATP synthesis to occur.

The organelles are then the structures that allow the development of the multiple functions that a cell has.

The other options are not correct because:

  • <em><u>Bacteria</u></em><em> is a prokaryotic organism. </em>
  • <em><u>Prokaryote</u></em><em> refers to simple organisms that lack organelles. </em>
  • <em><u>Proteins</u></em><em> are biomolecules that allow the structure and function of living beings.</em>
8 0
2 years ago
Give one common characteristic of hardwood trees
ohaa [14]

Hardwood trees have a lot of bark.

(I hope this is good enough.)

3 0
2 years ago
10 jenis tanah beserta sifat,ciri ciri.manfaat
IRISSAK [1]
I wish I could help but I speak english.
7 0
2 years ago
What percentage of water on Earth is considered freshwater?<br> A. 2%<br> B. 3%<br> C. 4%<br> D. 5%
MrRissso [65]
B. only 3% of water on earth is fresh
4 0
2 years ago
True or False: Alpha-defensins and reactive oxygen species (ROS) are examples of anti-microbial molecules produced by profession
REY [17]

Answer:

The given statement is true.

Explanation:

Alpha- defensins belong to the family of mammalian defensin peptides that belong to the alpha sub family.  Defensins are anti-microbial molecules . They work against Gram positive and Gram negative bacteria, fungi and enveloped viruses. Alpha- defensins functions by attacking the intraluminal bacteria and fungal pathogens.

Reactive oxygen species are very reactive chemicals formed from oxygen. These are anti-microbial molecules. Reactive oxygen species are antimicrobial against Gram-positive and Gram -negative bacteria, viruses and fungi.

Learn more about defensins here:

brainly.com/question/16404467

#SPJ4

8 0
1 year ago
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