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IRISSAK [1]
3 years ago
5

Use the drop-down menus to match each phrase below with the type of microscope it describes.

Biology
2 answers:
VikaD [51]3 years ago
4 0
A compound light microscope magnifies objects in steps.
An electron microscope is the type that was used to observe the first strands of DNA.
A compound light microscope contains a series of lenses.
A compound light microscope includes magnifying glasses.
An electron microscope creates a digital image.
A simple light microscope uses one lens for magnification.
Sonja [21]3 years ago
4 0

1. A *compound light microscope* magnifies objects in steps.

2. An *electron microscope* is the type that was used to observe the first strands of DNA.

3. A *compound light microscope* contains a series of lenses.

4. A *simple microscope* includes magnifying glasses.

5. An *electron microscope* creates a digital image.

6. A *simple microscope* uses one lens for magnification

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Please answer the following questions correctly​
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Answer:

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I - Crown / Enamel

II - Dentine

III - Cement / Periodontal membrane

IV - Jaw bone / Root

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                    {2 marks}

I - Protects teeth from harmful bacteria

-- Enable teeth withstand pressure of chewing

-- Cutting / chewing / protects dentine / protect pulp cavity

III - hold tooth firmly (in socket / Jaw bone)

iii  Which of the labelled parts could be affected by tooth decay?

                                   {1 mark}

V - Pulp cavity

iv  State three ways by which tooth decay may be prevented.

                      {3 marks}

→ avoid using sharp-pointed objects

→ avoid having dry mouth

→ use water containing fluorides to wash teeth / mouth

→ avoid smoking

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→ wash the mouth vigorously after each meal

→ regular visit to the dentist

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→ avoid eating too cold food / taking too cold drinks

Explanation:

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