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Naddik [55]
3 years ago
12

Where do the minerals from soil originally come from?

Biology
1 answer:
stiks02 [169]3 years ago
8 0
It originally cme form the rocks
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A student conducted an investigation to study phototropism in grasses. The only difference between the control group and the exp
Maurinko [17]

Answer:

Option-B

Explanation:

Phototropism refers to the movement of plants in response to light. The mechanism of phototropism involves the photoreceptors which respond to a different wavelength of light: the phytochromes to red light, cryptochromes to blue light and the phototropin to the UV light.

Plants integrate the signals obtained from these receptors and then activates the gene which will be involved in the phototropism.

The gene could be the production of the auxin hormone and the PIN proteins which helps in the distribution of the auxin in the plants. Due to the production of this hormone and its distribution in the shoot, the grass tips bend towards the light.

Thus, Option-A is correct.

3 0
4 years ago
Write 2-3 complete sentences to describe the government in United States
Tpy6a [65]

Answer:

The United States government is a constitutional, federal republic composed of three branches: legislative, executive, and judicial. Each branch has its limitations of powers and responsibilities to ensure that citizens have their rights protected and that the government is successfully working.

Explanation:

5 0
3 years ago
A solution that has the same osmotic concentration as a cells cytoplasms
leva [86]

Answer:

Isotonic

Explanation:

A solution that has same concentration os solutes inside and outside is called isotonic solution.As no concentration gradient is developed to induce the diffusion of large amount of water across the cell membrane rather water molecules freely diffuse in and outside the cell.So there is no gain and loss of water by the cell due to which the cell neither shrinks not swell

6 0
3 years ago
All of the following are common water pollutants that can be damaging to the environment except
olga2289 [7]
I think the correct answer from the choices listed above is the third option. All of the following are common water pollutants that can be damaging to the environment except <span>carbon dioxide from combustion. This pollutant would go directly to the atmosphere and not to the waters. Hope this answers the question.</span>
8 0
3 years ago
Exponential growth is limited by all the following factors expect
jonny [76]

Answer:

b

Explanation:

In this question, the context for exponential growth is assumed to occur naturally. Because lab experiments are not natural and must happen in well controlled studies, it cannot limit exponential growth.

3 0
4 years ago
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