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4 years ago

How does space exploration affect the economy of Florida?

Biology

1 answer:

Talja [164]4 years ago

6 0

Answer:

People visit the Kennedy Space Center in Florida, thus using services in Florida and improving the economy. Each time a rocket is launched from the Kennedy Space Station, a lot of people travel there, helping the economy more.

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Which of the following must exist in a population before natural selection can act upon that population? A. genetic variation am

just olya [345]

<h2>Answer is Option "A"</h2>

Explanation:

Genetic variation is the variation in alleles and genes, both within and among populations. Think of a population as a family unit. Within your family of closely-related individuals there is genetic variation. Within a neighbourhood, there are many families, and so there is also genetic variation among that larger group
Genetic variation can be identified through either continuous or discrete traits. Continuous traits are traits that vary continuously, such as height and weight. Discrete traits are traits that can only be measured discretely, such as tongue rolling; you either can or can't do this
There are three sources of genetic variation: mutation, gene flow, and sexual reproduction.A mutation is simply a change in the DNA. Mutations themselves are not very common and are usually harmful to a population.Because of this, mutations are usually selected against through evolutionary processes
Hence, the right answer is option A "genetic variation among individuals"

7 0

4 years ago

A steel bar has a mass of 4,000 kilograms and a volume of 0.5 cubic meters . Calculate its density. Write your answer as a whole

mixer [17]

The equation for density is:

$D=\frac{m}{V}$

where the mass is in grams and the volume is in $cm^{3}$ .

We are given 4,000 kilograms, and we know that there are 1,000 grams in 1 kilogram, so we need to multiply to convert to grams:

$4,000*1,000=4,000,000g$

We are also given 0.5 $m^{3}$ , and we need to convert to $cm^{3}$ . We know that there are 100 cm in 1 m, and since we are talking about cubic volume, we must also raise 100 to the 3rd power: $100^{3}=1,000,000cm$ . So now we know that there are 1,000,000 $cm^{3}$ in 1 $m^{3}$ . We need to then multiply 1,000,000 cm by 0.5 in order to find the volume that was given in the question:

$1,000,000*0.5=500,000cm^{3}$

So now that we have the correct units, let's plug them into the equation:

$D=\frac{4,000,000g}{500,000cm^{3}}$

$D=\frac{8g}{cm^{3}}$

So now we know that the density is 8g/cubic centimeter.

3 0

3 years ago

A chick becomes a chicken over a period of several<br> weeks.

Serggg [28]

Answer:

This is <em>true </em>!!

Explanation:

In general terms, chickens are said to be adults when they reach sexual maturity and begin the process of laying eggs. This will typically happen when the birds are between 16 and 24 weeks of age, depending on the breed. However, the time might also vary from individual to individual, as some will develop more quickly or slowly than others. If you need a ballpark figure, a young chicken can usually be considered mature when it reaches 18 weeks of life.

7 0

3 years ago

In the first stage of the nuclear fuel cycle the spent fuel must be transported, processed, and disposed of properly. True Or Fa

Usimov [2.4K]

After the process of Ore processing, Enrichment, Fuel production and being passed through the reactor core the last remaining step is spent fuel disposal

5 0

3 years ago

Read 2 more answers

Frederick Griffith discovered

serg [7]

Answer: Frederick Griffith discovered that bacteria can get DNA through the process of transformation.

6 0

4 years ago