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Murljashka [212]
3 years ago
10

What percentage of patients with whooping cough die? A.10% B.18% C.30% D. 1%

Biology
2 answers:
shtirl [24]3 years ago
6 0

The correct answer is option D, that is, about 1 percent.  

Pertussis also is known as a whooping cough is a highly contagious bacterial disorder. In the beginning, the symptoms are generally identical to those of the common cold with a fever, runny nose, and mild cough. This is succeeded by weeks of extreme coughing fits.  

Pertussis is caused by the bacterium <em>Bordetella pertussis</em>, it is an airborne disease. An estimated 16.3 million people globally were infected in 2015. The majority of the cases take place in the developing nations, and the individuals of all age groups can get affected. About 1 percent of the patients with whooping cough die annually.  


Mkey [24]3 years ago
4 0
<span>the percent of patients with whooping cough die is   </span>D. 1%   
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Shell color in clams is thought to be controlled by three different genes (each with two alleles). Shell coloration runs a range
sergejj [24]

The correct answer is A. Quantitative traits

Explanation:

In genetics, quantitative traits refer to traits or phenotypes (observable traits) that depend on many factors including multiple genes and actions in the environment. These traits differ from other traits because the traits tend to be more diverse in a population. In the case presented, the shell color in clams is an example of a quantitative trait because this phenotype is the result of three different each and each gene contains two alleles which means the color depends on many factors. Additionally, as most quantitative traits there is a higher variation in the phenotype considering clams can have different hues.

5 0
3 years ago
Macy has hired 400 store sanyas. If each Santa sees 125 children a day for 30 days, how many children are seen by mac's santa
Pachacha [2.7K]
So here let's first find the amount of children every santa, in total, sees in one day. So if there are 400 santas, and each sees 125 children, you can just multiply 400 by 125 to see how many children all the Santas see in one day.

400 * 125 = 50,000

Now, since there are 30 days which all the santas see 50,000 children, you can then multiply 30 by the 50,000 children to get how many children are seen by Macy's Santas in a month.

30 * 50,000 = 1,500,000

So 1,500,000 children are seen by Macy's Santas.
7 0
3 years ago
The material outside of and between cells is called
ioda

Answer:

plasma membrane

Explanation:

7 0
2 years ago
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garik1379 [7]

Answer: population of bacteria can survive and flourish by using light independence reactions

Explanation: So like the bacteria perform chemical reactions which produce energy for them

3 0
3 years ago
Research concerning automatic prejudices reveals that __________. a. automatic processing is associated with the frontal cortex.
Valentin [98]

Answer:

D. automatic processing involves primitive areas of the brain associated with fear

Explanation:

The amygdala in the limbic system represents a region of the brain that has recently received attention as a possible region associated to fear reactions. Moreover, it has been proposed that the amygdala was one of the first limbic regions to develop in course of evolution.

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