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Lelechka [254]
3 years ago
5

On which of the following surfaces of permanent teeth is pit and fissure caries MOST likely to occur? A. Facial surfaces of maxi

llary first molars B. Lingual surfaces of maxillary first molars C. Facial surfaces of mandibular first premolars D. Lingual surfaces of mandibular first molars E. Proximal surfaces of mandibular incisors
Biology
1 answer:
aksik [14]3 years ago
4 0

Answer:

B

Explanation:

A pit is a tiny depression which is found on the surface of the tooth.

Fissures are the grooves that occur naturally on the biting surfaces of teeth.

Thus, pits and fissures are located on the lingual surfaces of the maximillary first molars because of the lingual fissures on the max molars.

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The larvae of honey bee are voracious feeder why​
Juliette [100K]
Answer: because of larva

Explanation: Larva. After three days, the egg hatches into a worm-like form called a larva. The worker bees feed the larva royal jelly for the first few days and then switch to honey and pollen. An exception to this is a future queen: this larva continues its diet of royal jelly.
3 0
3 years ago
Mrs. Jones blood typing results showed agglutination with the plasma containing anti - B antibodies only. What is her blood type
MakcuM [25]

Answer:

Mrs Jones Blood type= B type.

Safe transfusion from: B and O blood type.

Explanation:

In the given example, the anti-B antibodies are present in the donor plasma.  Since anti-B antibodies react with B antigen present on the RBCs of blood, Mrs. Jones should have B antigen on the surface of her RBCs. The blood type with only B-antigen on the RBC's surface is blood type "B".  

Hence, her blood type is "B" type which has B antigens that react with anti B antibodies of the donor plasma causing agglutination and hemolysis of RBCs.  

She can get the blood of B and O blood types. Blood type O is a universal blood type as it does not have B or A antigens on the surface of its RBCs to initiate the agglutination.  

4 0
3 years ago
If a meal supplies 110 g of carbohydrates, 25 g of protein, 20 g of fat, and the equivalent of 5 g of alcohol, what % of the kca
mars1129 [50]

Answer:

0.058 % kcalories comes from carbohydrate.

Explanation:

1 g of carbohydrtes gives 4 calories, 1 g of protein gives 4 kcalories, 1 gm of fat gives 9 calories and 1 g of alcohol gives 7 calories of energy.

Thus in a meal  that contains 110 g carbohydrates gives 110 x 4 = 440 calories,  25 g protein gives 25 x 4 = 100 calories, 20 g fat gives 20 x 9 = 180 calories and 5 g alcohol gives 5 x 7 =  35 calories.

Total calories in a meal  440+100+180+35 = 755.

Therefore % of carbogydrate will be 440x 100 divided by 755 = 58.27 %

In kcalories % would be 58.27/1000 = 0.5827 %  

5 0
3 years ago
What happens to crude birth rates when literacy rates go up
Novosadov [1.4K]

Answer:

When literacy rates goes up then crude birth rates will automatically be decline

Explanation:

Crude birth rate refers to the number of births /1000 in a population. It doesn’t count the age and sex in a population.

General fertility corresponds to number birth of a women age between 15- 49 in a year.

Factors Affecting fertility Rates: Healthcare,Education

Healthcare: Improvement in  healthcare leads to drop infant mortality rate , knowledge of birth control measures and economic status have an impact on birth rates.

Education: Female literacy rate and knowledge of birth control and employment opportunities also decline crude birth rate.

3 0
3 years ago
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Answer:

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