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photoshop1234 [79]
3 years ago
11

A biology student is studying ways to grow crops in soils that are high in salts and other dissolved solids. To determine whethe

r corn plants can tolerate salty soil conditions, she grows one corn plant in typical non-salty soil and one corn plant in the same soil plus 0.5 kilograms of salt. After 6 weeks of growth, the corn plant grown in salty soil is only about 50% of the mass and height of the corn plant grown in non-salty soil. How can this research be improved so that she will have greater confidence in her data?
Biology
2 answers:
mars1129 [50]3 years ago
8 0
She will have about 50.5 % 
oee [108]3 years ago
7 0
A) repeat the experiment but with additional corn plants to increase the sample size EliminateB) add more salt to the experimental condition so that the resulting data is more clear C) test an additional variable such as amount of moisture so that the results are more valid D) revise the original hypothesis to account for the fact that plants do not grow in salty soils
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Describe the process of photosynthesis. What ingredients does a plant need in order to complete photosynthesis? After photosynth
forsale [732]

Answer:

Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds, Three main ingredients are required for photosynthesis: water, carbon dioxide, and light. Plants use light energy from the sun to convert six water molecules (6 H2O) and six carbon dioxide molecules (6 CO2) into a molecule of glucose and six molecules of oxygen, Carbohydrates(glucose) and Oxygen is the end product.

4 0
3 years ago
Read 2 more answers
at short focusing distances, ciliary muscles contract. what effect do these contractions have on the suspensory ligaments?
True [87]

At short focusing distances, ciliary muscles contract causing the suspensory ligaments to tighten.

The ciliary muscle is an integral muscle of the eye that is constructed as a ring of smooth muscle in the middle layer of the eye, the uvea (vascular layer). It regulates the passage of aqueous humor into Schlemm's canal and governs accommodation for observing objects at different distances.

A suspensory ligament is a ligament that provides support to a body part, particularly an organ. The suspensory ligament protects the fetlock from hyperextension (i.e., falling too low) during exercise. The ligament begins in both the fore and hindlimbs at its connection to the back of the upper cannon bone.

When the ciliary muscle relaxes, its diameter increases; when the suspensory ligaments tighten, the lens becomes thinner. This occurs when concentrating on a celestial object. When the ciliary muscle contracts, the lens becomes much more circular and has more focusing power because the pressure on the zonular fibers is reduced. When the ciliary muscles relax, these fibers contract, pulling the lens out and creating a flatter shape with less focusing power 

For more information on suspensory ligaments, visit :

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6 0
1 year ago
When walking in a tropical forest you come upon a 5 foot tall plant that does not produce flowers or seeds. In which of these gr
Minchanka [31]

C. ferns.

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The ferns are ancient plants that have managed to survive until the present. They are not closely related to the dominant plants nowadays, the flowering plants, but instead they are closely related with plants that have gone extinct tens and hundreds of millions years ago. Even though the ferns are not the dominant plants, they have managed to find a niche and firmly hold onto it, so they remained widespread, normally occupying the lower layers of the forests.

Unlike the flowering plants that produce flowers and then seeds in order to reproduce, that is not the case with the ferns. The ferns actually reproduce through spores, being widely dispersed by the wind and managing to spread out and reproduce over relatively large territory very quickly.

6 0
3 years ago
Help me in this question please thank u, it's urgent
Andre45 [30]

Answer:

1 - R

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Explanation: hope this helps

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