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Oksanka [162]
3 years ago
8

What causes the different time zones?

Biology
1 answer:
Korvikt [17]3 years ago
5 0

Answer:

The need for continental time zones stemmed directly from the problems of moving passengers and freight over the thousands of miles of rail line that covered North America by the 1880s. Since human beings had first begun keeping track of time, they set their clocks to the local movement of the sun.

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The ribosome is called the ____________ ; because it can read mRNA language & turn it into amino acid language.
Scrat [10]

Answer:

DNA Translator

Explanation:

The ribosome is called the DNA TRANSLATOR; because it can read mRNA language & turn it into amino acid language.

This amino acid chain is known as polypeptide

6 0
2 years ago
Chemicals used in a food establishment must be:
nlexa [21]
They must be non-toxic ie not chemicals that could poison the customers because of the potential risk of contaminating things which can come into contact with the food like say cutting boards, dishes, utensils, pots, pans and any other similar items.
6 0
4 years ago
What process of cellular respiration occurs at the inner membrane of the mitochondrion?
vaieri [72.5K]
The Election Transport Chain
6 0
3 years ago
A fruit fly population has a gene with two alleles, A1 and A2. Tests show that 70% of the gametes produced in the population con
IceJOKER [234]

Answer:

Option C

Explanation:

Given ,

A1 allele is carried by 70 % people

Let us assume A1 s dominant genotype

This means p= \frac{70}{100} = 0.7

Thus, frequency of allele in the given population is 0.7

It is also given that the population is in Hardy-Weinberg equilibrium thus

p+q=1\\0.7+q=1\\q = 1-0.7\\q= 0.3

Frequency of fruit fly with genotype A2A2 will be

q^2\\= (0.3)^2\\= 0.09

As per Hardy-Weinberg's second equation of equilibrium

p^{2} + q^{2} + 2pq = 1\\0.49+0.09+2pq = 1\\2pq = 1-0.49-0.09\\2pq= 0.42

Hence, option C is correct

7 0
3 years ago
Choose all answers that apply
Nutka1998 [239]

Answer:

<em><u>is</u></em><em><u> </u></em><em><u>made</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>double</u></em><em><u> </u></em><em><u>layer</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u> </u></em><em><u>phospholipids</u></em>

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3 years ago
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