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3 years ago

Use the dichotomous key below to identify the cell type.

Chemistry

1 answer:

xenn [34]3 years ago

6 0

The dichotomous key is not given here, however, the correct dichotomous key is as follows:

step- 1a cell has a nucleus and organelles - go to step 2

1b cell has no nucleus or organelles - bacterial cell

step- 2a cell has a cell wall - go to step 3

2b cell has no cell wall - animal cell

step- 3a cell has chloroplasts - plant cell

3b cell has no chloroplasts - fungal cell

Using this dichotomous key the cell can be identified as - Fungal cell.

A dichotomous key is an essential scientific tool that is used to find out the various kinds of organisms on their observable traits. Dichotomous keys have a series of statements with two different choices in each step that will take the student or user to the correct identification.

Identification of the given cell:

1. Follow step 1.

If cells have a nucleus and organelles - yes then go to step 2

2. follow step 2.

2a. if cell has a cell wall - yes go to step 3

3. follow step 3.

3a. if cell has chloroplasts - no then fungal cell

Fungal cells have a nucleus and cell organelles enclosed with a cell wall around the plasma membrane but do not have chloroplast.

Thus, Using this dichotomous key the cell can be identified as - Fungal cell.

Learn more about fungal cells:

brainly.com/question/14470940

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Suppose the decomposition of dinitrogen monoxide proceeds by the following mechanism:

photoshop1234 [79]

Answer:

Part A: 2N₂O(g) ⇄ 2N₂(g) + O₂(g)

Part B: -r = K*[N₂O]²

Part C: K= k1*k2

Explanation:

Part A

To do the balance chemical question for the overall chemical reaction, we must sum the reaction of the steps, eliminating the intermediaries, which are the compounds that have the same amount both at reactants and products (bolded).

N₂O(g) ⇄ N₂(g) + O(g)

N₂O(g) + O(g) ⇄ N₂(g) + O₂(g)

---------------------------------------------

2N₂O(g) + O(g) ⇄ 2N₂(g) + O(g) + O₂(g)

2N₂O(g) ⇄ 2N₂(g) + O₂(g)

Part B

The velocity of the reaction (r) can be calculated based on the reactants or based on the products. Let's do it based on the disappearing of the reactant. Because it is disappearing, the variation at its concentration must be negative, so the rate will be negative.

Let's suppose its an elementary reaction, so, the concentration of the reactant must be elevated by its coefficient. And let's call the overall rate constant as K:

-r = K*[N₂O]²

Part C

Because the steps were summed, and the reactions were not multiplied by a constant or inverted, the constant K is just the multiplication of the constants of the steps:

K= k1*k2

8 0

3 years ago

kipiarov [429]

Answer:

Mitosis takes place in four stages: prophase (sometimes divided into early prophase and prometaphase), metaphase, anaphase, and telophase. You can learn more about these stages in the video on mitosis. In cytokinesis, the cytoplasm of the cell is split in two, making two new cells.

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3 years ago

Which soil would be the best for growing plants?

Leokris [45]

Honestly, its based on your preference but the best recommended one would be loam. I use loam too, and it is really good for growing the plants.

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3 years ago

Where is most of the high-level waste stored in the United States

Anna007 [38]

The correct answer is number 5) at the nuclear reactor site.

Most of the high-level waste stored in the United States is at the nuclear reactor site.

Just people who specialize in the radioactive waste can handle this risky procedure because high-level radioactive waste needs treatment by the experts to truly isolated from the biosphere. Radioactive plants keep the waste deep underground because nobody wants another accident like the one that happened in Chernobyl on April 26, 1986.

The other options of the question were 1) the ocean. 2) mountain peaks. 3) volcanic fissures. 4) salt mines.

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4 years ago

HELP ME PLZ!!! I really dont know this!!! What characteristic of metals makes them good electrical conductors? -They have mobile

Natasha2012 [34]

Answer:

To have a high electrical conductivity, a normal metal should have mobile valence electrons and a long electron mean free path.

Explanation:

A long mean free path means that the electron goes a long distance between scattering events.

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4 years ago