1. Give one word answer:
a. The disease caused due to the insufficient supply of vitamin A.
b. The severe state of this disease can result in bleeding gums and blackened teeth.
c. They are known for their notorious value.
d. They can withstand extremes of temperature.
e. They are single-celled microbes with no definite nucleus
Please give the correct answer
Answers
Poor oral hygiene can lead to dental cavities and gum disease, and has also been linked to heart disease, cancer, and diabetes. Maintaining healthy teeth and gums is a lifelong commitment.
Everything you need to know about scurvy

Medically reviewed by University of Illinois — Written by Peter Crosta on December 5, 2017
What is scurvy?
Symptoms
Causes
Diagnosis
Treatment
Prevention
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Scurvy is the name for a vitamin C deficiency. It can lead to anemia, debility, exhaustion, spontaneous bleeding, pain in the limbs, and especially the legs, swelling in some parts of the body, and sometimes ulceration of the gums and loss of teeth.
Scurvy has been known since ancient Greek and Egyptian times. It is often associated with sailors in the 15th to 18th centuries, when long sea voyages made it hard to get a steady supply of fresh produce. Many died from the effects.
It also occurred during the Irish potato famine in 1845 and the American Civil War. The most recent documented outbreak was in Afghanistan in 2002, following war and a drought.
Modern cases of scurvy are rare, especially in places where enriched breads and cereals are available, but it can still affect people who do not consume enough vitamin C.
Answer:
1.(Retinol Deficiency)
2.Bleeding gums
3..............
4.Pollen grains
5.Prokaryotes