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Akimi4 [234]
3 years ago
12

Eukaryotic plant and animal cells each have distinguishing characteristics. For example, plant cells have cell walls, while anim

al cells do not. Which statement BEST elaborates on the reason for this difference?
A) Cell walls help plants make their own food by converting light energy. Animals do not make their own food.
B) Animal cells use oxygen, and it cannot pass through cell walls. Plant cells do not need oxygen to pass through.
C) Animal cells produce waste, and a wall would prevent it from leaving the cell. Plant cells do not produce waste.
D) Cell walls of plant cells give plants their rigid shapes, while lack of cell walls allows for mobility in animals.
Chemistry
2 answers:
kolezko [41]3 years ago
3 0

Answer: well the answer is a

Explanation: how because I did that

Eduardwww [97]3 years ago
3 0
Answer: It is A




Explain: it is A because I did the test and I got it right and if it is wrong try B your welcome hope you’ll have a great day
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ANYONE PLEASE HELP BY THURSDAY!!
sladkih [1.3K]

Answer:

c

Explanation:

i dont have one

5 0
2 years ago
What is the relationship between
pychu [463]

Answer:

As community goes through multiple changes through each stage of succession, it is not in equilibrium.

Explanation:

Equilibrium in ecology refers to a state that occurs such that a small disturbance or change is counter balanced by another change so that the community is restored to its original state.

5 0
3 years ago
Which of the following reactions is balanced?
77julia77 [94]

Answer:

B. CaCl₂ + H₂CO₃  → CaCO₃ + 2HC

Explanation:

A balanced reaction has the same number of atoms in the both sides of the reaction. In the options:

A. CaCl₂ + H₂CO₃ → 2CaCO₃ + HCI

In this reaction there is 1 Ca in reactants and 2 in products -<em>The reaction is unbalanced-</em>

<em />

<h3>B. CaCl₂ + H₂CO₃  → CaCO₃ + 2HCl </h3>

There is 1 Ca is both sides, 2Cl, 2H, 1C and 3 Oxygens -<em>The reaction is balanced</em>

<em></em>

C. CaCl₂ + 2H₂CO₃ → CaCO₃ + HCI

There is 1 Ca in both sides but 2Cl in reactants and 1 in Cl -<em>The reaction is unbalanced-</em>

<em />

D. 2CaCl₂ + H₂CO₃ →CaCO₃ + HCI

There are 2 Ca in reactants and 1 in Ca -<em>The reaction is unbalanced-</em>

3 0
2 years ago
The black, granular material that fills a dry cell in a common flashlight (between the carbon rod and the zinc shell) is mangane
mestny [16]

Answer: c. +4

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

Mn:25:1s^22s^22p^63s^23p^64s^23d^{5}

Mn^{4+}:21:1s^22s^22p^63s^23p^63d^1

O:8:1s^22s^22p^4

O^{2-}:10:1s^22s^22p^6

Here manganese is having an oxidation state of +4 called as  cation and oxygen forms an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged to give Mn_2O_4 which written in simplest whole number ratios to give neutral MnO_2

7 0
3 years ago
50 points!! i need 3 answers!!!
tester [92]
Option E, Real gas particles have more complex interactions than ideal gas particles.

In ideal gases, there is absolutely no interaction between any atoms. At all. Atoms simply don't bump into each other in ideal gases.

Obviously, you know that's unrealistic. In real gases, atoms collide into each other all the time.

-T.B.
3 0
2 years ago
Read 2 more answers
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