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defon
2 years ago
6

Van Helmont did experiments on

Biology
1 answer:
Natali [406]2 years ago
3 0

Answer:

A. Water

Explanation:

Van Helmont concluded that most of the mass the plant gained had come from water, because that was the only thing that he had added to the pot. Van Helmont's experiment accounts for the "hydrate," or water, portion of the carbohydrate produced by photosynthesis.

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What type of animal model is good to make in science to get an A or A+ in animalia kingdom.
madreJ [45]
Zebra,Blackbear,butterfly,pandabear

8 0
3 years ago
What 3 things are necessary for germination to begin
Jlenok [28]

Answer:

water, correct temperature, and a good location.

Explanation:

Seeds wait to germinate until three needs are met: water, correct temperature, and a good location. During its early stages of growth, the seedling relies upon the food supplies stored with it in the seed until it is large enough for its own leaves to begin making food through photosynthesis.

3 0
3 years ago
0<br> Help me please help
klio [65]

Answer:

The first bullet is theory

The second bullet is Law

Explanation:

A scientific law is an explanation of a tested hypothesis and a mathematical method.

I am not totally sure but I believe this is correct

3 0
3 years ago
Read 2 more answers
a cell is placed in a solution of 3% starch and 3% glucose. After several hours, glucose is detected outside of the cell, but st
Alex17521 [72]

Answer and Explanation:

The cell was placed in a hypertonic solution. Glucose is a monosaccharide while starch is a polysaccharide. The concentration on the outside is higher compared to that on the inside. The cells have cell membrane that is semi-permeable.

Movement of molecules is dependent on the concentation gradient. However, the size of molecules determine the diffusion rate. Small and light molecules diffuse faster than large and heavy molecules thus glucose diffused faster than starch.

The cell membrane being permeable suggested that it allows molecules of small sizes to pass but not large ones.

7 0
3 years ago
Which best describes the age structure of a population with zero population growth?
serious [3.7K]

Answer:

The correct option is D) The age-structure diagram would be column-shaped with all age classes approximately equal.

Explanation:

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5 0
3 years ago
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