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Serggg [28]
3 years ago
14

Why do we use arrows when creating a food web? What do they represent?

Biology
1 answer:
dmitriy555 [2]3 years ago
5 0

The arrows usually point to the organisms that are doing the eating.

Explanation:

For that reason, we can say that the arrows represent the flow or transfer of energy in an ecosystem. It also specifies the direction of the flow of energy.

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Scientists use fossils to study earth history by identifying the fossil and what era it came from. By knowing what era the fossil came from and what location it was found, scientists can make assumptions about the earth formation at that time.
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El Niños tend to result in drier conditions across Australia. Which of these is likely to occur in Australia during La Niña?
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Since Australia is located in the Pacific ocean, extremes of weather and climate happen throughout a season. El Niño is traditionally defined as a dry climate with reduced rainfall; in this happens to be more extreme in Australia because of its location. La Niña on the other hand is traditionally defined as a wet or cool climate with lots of rainfall; and this is indifferent as La Niña in Australia tend to be more extreme too.
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How do the nutrients found in plants function in plant DNA? Is the function of plant DNA similar to human DNA?
DochEvi [55]

Answer:

How do the nutrients found in plants function in plant DNA?

Plants take up essential elements from the soil through their roots and from the air (mainly consisting of nitrogen and oxygen) through their leaves. Nutrient uptake in the soil is achieved by cation exchange, wherein root hairs pump hydrogen ions (H+) into the soil through proton pumps.

Is the function of plant DNA similar to human DNA?

How much DNA do plants share with humans? Over 99%? ALL animals and plants share the same DNA which is basically a code of only 4 'letters' which code for the same amino acids from which all proteins are made.

Explanation:

6 0
3 years ago
Lymph traveling from the left arm would enter the venous circulation via the?
ira [324]

Lymph traveling from the left arm would enter the venous circulation via the thoracic duct.

<h3>What is thoracic duct?</h3>
  • The largest lymphatic channel in the body's lymphatic system is the thoracic duct, commonly known as van Hoorne's canal.
  • Adults have an average length of 40 cm, and their abdominal origin is about 5 mm wide.
  • The thoracic duct runs from the root of the neck to the twelfth thoracic vertebra.
  • The thoracic duct enters the posterior mediastinum, remaining to the right of the vertebral column, by ascending via the diaphragm's aortic hiatus.
  • At the T7 vertebral level, it runs posterior to the esophagus before crossing over to the left side of the thorax at the T5 vertebral level.
  • The primary lymphatic channel for the return of chyle/lymph to the systemic venous system is the thoracic duct.
  • It drains lymph from the left side of the face and neck, left hemithorax, left upper limb, and both lower limbs.

Learn more about thoracic duct here:

brainly.com/question/19241374

#SPJ4

8 0
1 year ago
Which evidence has led scientists to conclude that there are different layers within Earth's interior?
Elenna [48]

Answer:

Explanation:

1) análisis de datos de ondas sísmicas

8 0
3 years ago
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