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e-lub [12.9K]
2 years ago
13

The four steps of the scientific method in order are hypothesis, observation, experimentation, and conclusion. True or false

Biology
2 answers:
Ann [662]2 years ago
5 0
False. The correct order is:
Question
Research
Hypothesis
Test the hypothesis
Analyze data
Conclusion
Mama L [17]2 years ago
4 0
False
Question yourself about the topic.

Research information about your topic.

Construct a Hypothesis with a basic knowledge about the topic.

Test your hypothesis to experiment if your hypothesis was right.

Make an analysis of your data and draw a conclusion about your results. 

Communicate your results about the experiment with the science community.



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Answer:

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3 years ago
Does 5' GUU-AGC-GCC-AGA-GAA 3' or Val Ser Ala Arg Glu indicate a genetic disorder?
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Describe the vascular system of plants. Include brief descriptions of the characteristics and function of xylem and phloem.
solong [7]

Answer:

The vascular tissue of the plants distributes water and nutrients, which guarantees a constant growth. Each newly formed cell needs to become the corresponding cell type in vascular tissue.

Explanation:

Like animals, plants need water and nutrients. While animals use a circulatory and digestive system to obtain and distribute nutrients, plants use a vascular system. This system absorbs water, vitamins and minerals from the soil and then transmits energy in the form of carbohydrates to the roots. The main components of the vascular system are the xylem and the phloem.

<u>Xylem</u> is a complex tissue formed by several cell types. Its function is the conduction of water and minerals from the root to the leaves. Among the cells that form this complex tissue differ:

- Conductive cells or tracheal elements: they are dead elements at maturity, they serve for vertical conduction and support

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- Storage elements: parenchymal cells, thick walls, secondary, can present crystals and other cellular contents.

- Support elements: fibers in the Angiosperms and fibrotracheids in Gymnosperms, elements of intermediate characters between the fibers and the tracheids.

<u> Phloem</u> cells conduct food (photosynthesis produced by photosynthesis) from the leaves to the rest of the plant. They are living cells at maturity and in histological preparations colored with Astrablue take the color blue. Phloem cells are located outside the xylem.

The sieve elements of this tissue are: the sieve cells in the Gymnosperms and the members of sieve tubes with their respective accompanying cells in the Angiosperms. The accompanying cells retain their nuclei and control the neighboring sieve tubes. Dissolved food, such as sucrose, circulates through the screened areas that connect these cells to each other.

Being a complex tissue, it also has parenchymal cells for storage and fibers and sclereids as a support.

4 0
3 years ago
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