A good conclusion testates the hypothesis so that the reader

One of the most basic examples of relative dating, specifically in this case, would be the law of superposition. This simply states that out of many layers of rock, the oldest would be at the bottom and the youngest on top, so therefore the age of the fossils inside the rock would also increase when going down the layers. Therefore, we see that layer a is the oldest, and layer g is the youngest.

This disproves the first answer choice - the fossils in layer g are the youngest, not the oldest. Now, when comparing Layer F and D, we see that the rock layer F is above layer D. This means that layer F is younger than layer D (and same for the fossils in those respective layers). The third choice is incorrect as layer A would be older than F as it is beneath layer F.

Therefore, this means your second choice, or the fossils in layer F are newer than the fossils in layer D, is correct.

Hope this helps!

3 0

4 years ago

Match each description with the appropriate term:

Eddi Din [679]

Answer:

a-C b-A c-E d-D e-B

Explanation:

a. Maintain at or above 20C C. Mcrobe Cultivation temperature

To can survive, all living organisms need specific ambient and temperature, between 20ºC and 30ºC.

b. Microfloral location in the human body of S. epidermis A. Skin

The epidermis is the external layer of the skin. This is where all bacterial microflora lives.

c. Used to neutralize spilled acids E. Baking Soda

In chemistry, to neutralize acids components, you need to use a basic component.

Baking Soda is basic.

d. Used isolating a pure culutre from a mixed or contaminated culture D. Aseptic Techinque

This technic is used to prevent contamination between samples.

e. Microfloral location in the human body of E. coli B. Gastrointesetinal Tract

Another place where you can find microflora is inside the gastrointestinal tract. This microflora works to dissolve substances in the digestive process.

4 0

4 years ago

A geneticist claims that four species of fruit flies should appear in the ratio

Gemiola [76]

There are sufficient evidences which are of 5% significance level to reject the claim.

<h3>What is chi-square test?</h3>

A statistical test used to compare observed results with expected results is referred to as the chi-square test.

According to the given scenario,

Ratio = 1:3:3:9
Sample size = 2000
Samples = 110, 345, 360, and 1185

To calculate:

Evidence to make conclusion to the geneticist's claim.

Total fruits = 1 + 3 + 3 + 9 = 16

As per the expected number of fruit flies

Each species = 1/16(2000) = 125.3/16(2000) = 375.3/16(2000) = 375.9/16(2000)

Each species = 1125

According to Chi-Square test -

$X^{2} =\epsilon\frac{(O_{i}-E_{i})^{2} }{E_{i}}$

$X^{2}$ = ( 110 - 125)²/125 + ( 345 - 375)²/375 + ( 360 - 375)²/375 + ( 1185 - 1125)²/1125

$X^{2}$ = (15)²/125 + (30)²/375 + (15)²/375 + (60)²/1125

$X^{2}$ = 8

with df = 4 - 1 = 3, and P( x² > 8) = 0.0460.

Thus, with a P-value, it is small, indicates 5% significance level to reject the claim.

For more details regarding the chi-square test, visit:

brainly.com/question/14082240

#SPJ4

4 0

2 years ago