The correct answer is 10 m/s. This is because:
F = ma
45 = 5m
90 = 5m * 2
Therfore a = 10 m/s
Answer:
The nervous system is present only in animals.
The nervous system also interacts with other systems.
It also controls body functions(the central nervous system does).
Answer:
a. All of these
Explanation:
<em>The characteristic of skin that makes it unpleasant for most bacteria would be due to all of the conditions.</em>
Most bacteria require humid condition in order to grow and as such, the desiccated nature of the normal human skin makes it difficult for them to establish themselves and grow on it.
The pH of the skin is usually acidic due to the production of lactic acid during sweating and the activities of the normal skin bacteria. The acidic pH hinders the growth of bacteria that can potentially become pathogenic to the skin.
Also, the skin produce antimicrobial substances at low pH which hinders the growth of pathogenic bacteria.
Hence, options b, c, and d are correct.
Argon since it’s a noble gas which have complete octets and valence shells
Answer:
Frequency of the B3 allele ![= 0.1](https://tex.z-dn.net/?f=%3D%200.1)
Explanation:
The allele frequencies in a given population remain constant which means that every generation will have the same gene pool across the generations. As per Hardy Weinberg’s first equilibrium equation, the sum of frequency of all the alleles at a given locus is equal to one
Thus, if "p" represents the frequency of B1 allele and "q" represents the frequency of B2 allele and "r" represents the allele for B3 allele. Then, sum or "p", "q" and "r" is equal to one.
![p+q+r = 1\\](https://tex.z-dn.net/?f=p%2Bq%2Br%20%3D%201%5C%5C)
Substituting the given values, we get -
![0.5 + 0.4 + r = 1\\0.9 + r = 1\\r = 1-0.9\\r = 0.1](https://tex.z-dn.net/?f=0.5%20%2B%200.4%20%2B%20r%20%3D%201%5C%5C0.9%20%2B%20r%20%3D%201%5C%5Cr%20%3D%201-0.9%5C%5Cr%20%3D%200.1)