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Dafna1 [17]
3 years ago
7

Which of the following statements proves that scientific knowledge changed due to the discovery of Ötzi the Iceman?

Biology
2 answers:
Vladimir79 [104]3 years ago
7 0
The correct option is D.
Scientific knowledge is very dynamic, it changes all the time based on emergence of new evidence. When new evidence are discovered, the scientific knowledge that are already in use are usually modified based on the new discovery.<span />
mixas84 [53]3 years ago
4 0
The correct answer is d i hope this helps ;)
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name two major vessels that return oxygen-poor blood to the heart. What are the damages for each? Where do they terminate?
Serga [27]

Answer:

1. Head, neck, upper limb, thorax - super vena cava - top of the right atrium.

2. Lower limb - inferior vena cava - bottom of the right atrium.

Explanation:

The Heart pumps the oxygen-rich blood to the different parts of the body to Otake oxygen and nutrients to these organs and then takes the oxygen-poor blood returns from the body to the heart.

The two major vessels that return oxygen-poor blood to the heart are 1. superior vena cava (SVC) that drainages Head, neck, upper limb, thorax and terminate at top of the right atrium, and 2. inferior vena cava (IVC), Lower limb and terminate at bottom of the right atrium.

1. Head, neck, upper limb, thorax - super vena cava - top of the right atrium.

2. Lower limb - inferior vena cava - bottom of the right atrium.

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4 years ago
Why is measuring biodiversity important for scientists
SCORPION-xisa [38]

Answer:

Biodiversity is a measure that combines richness and evenness across species. It is often measured because high biodiversity is perceived a synonymous with ecosystem health. ... some species work together so that both can survive (called commensalism) and therefore, diverse communities can be more stable.

Explanation:

❤❤

8 0
3 years ago
Give me in example of how the biosphere affects the atmosphere
Triss [41]
Some produce greenhouses gases and promote warming of our planet through the greenhouse effect, while others reduce the amount of greenhouse gases promoting cooling of our planet.
4 0
4 years ago
The difference between a pH of 5 and a pH of 8 is
Kaylis [27]

Answer:

The correct answer is - D) 1000x.

Explanation:

pH is a logarithmic scale, 1 reading change leads to the results in ten-fold in the   H+ concentration in acidity/basicity. The more  H +  ions found in solution, the more acidic the substance is as acids donate  H +  ions.  

You can calculate the concentration of  H +  from the pH and the equation  

p H  = − log [ H + ]

arrange again

[ H + ]  =  10 − p H

So for a pH of 8, we get  [ H + ]  = 10 ^− 8

For a pH of 5, we get  [ H + ] = 10^ − 5

 10 ^−5  /10 ^− 8= 10 ^3

=  1000

7 0
3 years ago
 What can you do to verify its purity? 
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Answer:

To verify you have a pure sample use the sterile needle to isolate and grow on a new streak plate to make sure you see only one culture.

Explanation:

6 0
3 years ago
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