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Lemur [1.5K]
3 years ago
12

How did van helmont reach his conclusion

Biology
1 answer:
MissTica3 years ago
5 0

Answer: He grew a willow tree in a weighed amount of soil. After five years, he discovered that the willow tree weighed about 74 kg more than it did at the start. As the weight of the soil had hardly changed, van Helmont concluded that plant growth cannot only be due to minerals from the soil.

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6. Which statement about seagulls and sea stars is true?
Natali5045456 [20]

Answer:

B.  Sea stars are the prey of seagulls

Explanation:

Seagulls eat sea stars, meaning that sea stars are their prey (the organism that is eaten).

Predator: an organism that eats (preys on) another organism

Prey: an organism that is eaten by another organism (creatures can be both predator and prey.  For example, a rabbit is a predator to grass, while they are prey to foxes)

Host: An organism that is fed on by a parasite.  Think of a dog with a tick.  The dog is the host, the tick is the parasite.  

Incorrect answers (and why):

A.  Sea stars do not eat seagulls

C.  If a sea star was a predator to a seagull, that would mean that they eat seagulls.  They do not.

D.  A host is an organism that a parasite preys on.  Not only are sea stars not parasites, but they definitely do not prey on seagulls.  

I hope this helps! :)

4 0
3 years ago
The quantity and the quality of the food is decreasing day by day. As population is increasing drastically,
Marina CMI [18]

Answer:

The answer is below

Explanation:

To improve this condition, there are various means or ways to combat this, some of which are:

1. Carrying out improvement on nutrition

2. Eliminating or reducing the environmental degradation on the food system by making food supplies more diverse, nutritious and sustainable.

3. Increasing the Plantation of agricultural produce, most especially food.

4. Birth control: this is trying to measure the resources available against the population, to achieve optimum relationship between population and resources.

5. Ensuring Organic Pesticides are used in agriculture, to avoid or prevent contamination of foods.

6. Provide proper Irrigation system, such that most area can serve the purpose of of agriculture.

7. Ensure the use of quality Seeds, which can translate to to bounty harvest

8. investment is needed to facilitate innovations and development of interventions that can improve nutrition in a cost-effective, sustainable way.

9. the private sector needs to be engaged in a meaningful way in finding solutions to a more sustainable and nutritious food system.

3 0
3 years ago
Multiple Choice Question Which of the following is NOT true of the cytoplasm? A. It is found in every part of the cell, from the
pashok25 [27]

Answer:

B

Explanation:

it is fluid lieu substence

6 0
3 years ago
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What molecules break the rungs (bases) apart?
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<span>Enzymes, special kinds of proteins, move up the DNA, breaking the rungs</span>
8 0
3 years ago
Characteristics that are not inherited but affect survival
Sauron [17]
Competition of resources, predation or disturbances (man-made and natural)
5 0
3 years ago
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