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k0ka [10]
3 years ago
15

Jan van Helmont concludes that plants gain most of their mass from

Biology
2 answers:
scoray [572]3 years ago
7 0

Water

Hope this helps :)

lutik1710 [3]3 years ago
5 0

The prevailing theory at the time was that plants grew by eating soil, and van Helmont devised a clever investigation to test this idea. He weighed a willow tree and weighed dry soil. He planted the tree, watered it and then left it for 5 years. He then re-weighed the tree, which had increased in mass by over 12 stone. He dried the soil and weighed it, showing that the soil was almost the same mass. He concluded that the tree grew by drinking water.

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Consider the following statements. Which of these statements is the hypothesis?
gogolik [260]

This is the image with The answer.

I hope this helped

6 0
2 years ago
Mass extinctions have occurred five times in Earth's history. The Permian and Cretaceous extinctions removed a large percentage
d1i1m1o1n [39]

Answer:

A. Species that remained after the extinction were able to radiate, new adaptations arose, and these adaptations produced the diversity seen today.  

Explanation:

When species went extinct they also left niches that could be occupied by "new" species; new places to live, places to be filled in the food web and different relationships to be formed. The wide availability of resources made organisms to radiate leading to a "new" diversity of shapes, sizes, and lifestyles.  

B. Species that have gone extinct were able to re-evolve from the ancestors that survived the extinction.  If you are extinct you are gone forever.  

C. Species that remained after the extinction were unable to speciate. Therefore, the number of species on Earth today is lower than the number of species present just before either extinction. The fossil record proves that species have changed over time and the diversity has changed over the history of Earth.

D. Species that remained after the extinction represented all of the lineages that were present before the extinction event. Therefore, extinction did not change the diversity of lineages. Again, the fossil record is evidence that lineages have changed over the history of the Earth.

8 0
3 years ago
Stress has an effect on every system of the body. Please select the best answer from the choices provided. T F
Degger [83]

Answer:

T

Explanation:

If put under stress the body systems are all effected in one way or a other

5 0
3 years ago
Which reaction best explains why carbon is able to from macromolecules ?
guajiro [1.7K]

Answer:

Carbon can bond with many elements

Explanation:

Carbon can bond with many elements, including itself, to form macromolecules. Moreover, it can form four bonds, and that makes possible many different arrangements of the atoms in the molecules.

A is <em>wron</em>g. Carbon is among the seven smallest elements in the Periodic Table.

C is <em>wrong</em>. Carbon is found in living things because it can form macromolecules, not the other way around.

D is <em>wrong</em>. Carbon can bond with many other elements beside itself.

4 0
3 years ago
What is the mRNA sequence?
Charra [1.4K]

Answer:

please upload the DNA sequence

Explanation:

8 0
3 years ago
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