Plant and Animal Cells
С
B
F
1 20 points
Which letter represents the brain of the cell?
о B
H
H
Why
E
D
G

Answer:

The excretory system removes waste from the body. remove waste from the blood. The digestive system breaks down the food you eat into nutrients that provide energy and building materials for cells. The digestive and excretory sytems work together to process the food that you eat.

Answer:

it's yellowish in color plz Mark me as brainliest

Answer:

It's a yellowish color like copper

Answer:

Image result for Polar molecules have partial positive and partial negative charges. An electrical attraction between the partial positive charge of one polar molecule and the partial negative charge of another polar molecule is called a/an

A polar molecule has a net dipole as a result of the opposing charges (i.e. having partial positive and partial negative charges) from polar bonds arranged asymmetrically. Water (H2O) is an example of a polar molecule since it has a slight positive charge on one side and a slight negative charge on the other.

Explanation:

Answer:    

Isotopes are versions of the same element. They have the same number of protons and electrons as the element but different mass numbers and number of neutrons.

Explanation:  

one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table.

Answer:

"The polar regions have long winters and short, cool summers."

Explanation:

Climate is the average of that weather. The climate record also includes extreme values such as record high temperatures or record amounts of rainfall.

For Climate example:

You can expect snow in the Northeast in January or for it to be hot and humid in the Southeast in July.

Explanation:

Add our site sources in order to be advantage of knowledge

Answer: B, C, E, D, A, F

Explanation: It is a little difficult to assign a regid order to these statements. Much depends on one's definition of "more scientific." My thoughts:

B: Only in the movies

C: Flat Earthers still exist, but no one has ever fallen off the edge, that I'm aware of

E: I've had a few pets with souls. My cat has it in for me.

D: I met Linus Pauling twice - he was too enthusiastic with his vitamin C and did not critically evaluate the evidence, but he was far more correct than the Flat-Earthers.

A: Lots of good evidence, although it can also depend on the definition of "living," Is a virus "living?"

F: Yep, I've done it myself. Heavier object have more inertia - they are the couch potatoes of physics. They will take their own time to get moving.

Answer:

y = 2.77 cm

Answer: The third dimension is 2.77 cm

Answer:

An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner part being folded inwards to form layers (cristae).

Explanation:

Answer:

0.20moles

Explanation:

1 mole Na contains 23 g Na

23 g Na =1 mole of Na

1 g Na= 1/23 moles of Na

4.6 g Na= 1/23×4.6= 4.6/23=0.2 moles

Therefore 0.2 moles are present in 4.6 g of Na

Answer:

the 4.6g sodium has 0.2 moles

Answer:

This process is know as Chromotography

Explanation:

Answer:

All are periodic changes

[And is that a todoroki pfp, I like MHA too

(・∀・) ]

Answer:

B and C

Explanation:

is it multiple choice question??

Van der Waals forces are the interaction between the molecules and the atoms. It increases with an increase in the molecular size and the number of electrons. Thus, options B and C are correct.

Van der Waals forces are the weak forces of attraction and repulsion present between the atoms and the molecules of the compounds. They are also called London Dispersion Forces and dipole-dipole forces.

An increase in the number of electrons and size of the molecule increases the surface area and the electron cloud which in turn, increases the Van der Waals force.

The intermolecular force increases as in large atoms or molecules the valence are held loosely as they are far from the nucleus or the center of the atom.

Therefore, the size and the electron increase the Van der Waals force.

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Answer:

1). 1 litre

2).12 cm

Explanation:

In 1 litre = 1000 ml whereas 1500 milliliters equals 0.15 litres and it is same for 12 cm and 12 milliliters

Answer

level 2 to 4

Explanation:

i guessed cause im just that cool

Answer :

0.9999432 g/cm^3

The density of water in g/ml up to 4 significant figures at 6°C is 0.9999432 g/cm³.

Significant figures are used for establishment  of a number which is presented in the form of digits. These digits give a meaningful representation  to the numbers.

The significant figures are the significant digits which convey the meaning according to the accuracy. These provide precision to the numbers and hence are called as significant numbers.There are rules for counting significant figures which are as follows:

1)All non-zero digits are significant .

2)All zeroes which occur between non-zero digits are significant.

3)All zeroes to the left and right of  a non-zero digit are not significant.

4) All zeroes on right  of decimal are significant if a non-zero number follows them.

5)All zeroes on right side of non-zero digit are significant

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Answer:

electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals.

Answer:

B

Explanation:

A prepositional phrase should include after the preposition an object and its modifiers. The correct option is D.

A prepositional phrase is a group of words that contain a preposition with its object and the words that modify it. These are the words that change verbs and nouns.

For example, Mansi is going out with handsome Brian. Brian is the object and the beautiful is the prepositional phrase. The three types of prepositional phrases are:

If there are two prepositional phrases used in one sentence. The other prepositional phrase will be used as an adverb.

Thus, the correct option is D. an object and its modifiers.

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Answer:

9.3 x 10^ -5 in standard notation is 0.000093

Explanation:

Since 10 is raised to a -5, this means that there should be 5 zeros before the non-zero digits

Answer:

Hydrogen is usually classified as a group 1 element since it has one valence electron, just like group 1 metals.

Explanation:

Answer:

Al3+<Mg2+<Na+

Explanation:

this is because of nuclear charge (no. of protons)

atomic radius is inversely proportional to nuclear charge.

Answer:

The photon is directly proportional to frquency

Explanation:

E=hf

where E is energy

h is plancks constant and

f is frequency

Answer:

A

Explanation:

Edge 2022

True.

The Mass Undergoes change only in ( Solid state to liquid state ) Ice Cube to Water .

Mass changes from mg to litre.

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Answer:

B. Knowing the color and brightness of a star

Explanation:

Answer:

[tex]{ \sf{3Mg_{(s)} + N_{2(g)} →Mg _{3}N_{2(s)}}}[/tex]

Answer: 1)  Caboxylic acid

2)  Ether

3)  Ester

4)  Aldehyde

5)  Amine

6)  Alcohol

Explanation:  The type of a molecule is based it's primary functional group.  

https://en.wikipedia.org/wiki/Functional_group

The identities of the given molecules shown in the drawing are:

1) Carboxylic acid.

2)  Ether

3)  Ester

4)  Ethane

5) Aldehyde

6)  Amine

7)  Alcohol

Organic compounds are those compounds, which contain carbon-carbon and carbon-hydrogen bonds.

The five organic compounds are lipids, carbohydrates, protein, nucleotide, etc.

Thus, the correct option is 1) Carboxylic acid.

2)  Ether

3)  Ester

4)  Ethane

5) Aldehyde

6)  Amine

7)  Alcohol

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Answer:

Yes, the investigations will reach similar conclusions about the reactivity of H2 and Cl2

Explanation:

1. The law of multiple proportions says that when elements form compounds, the proportions of the elements in those chemical compounds can be expressed in small whole number ratios.  This means that regardless of whether 1000 times more of the products are used, the reactivity of the products is established by the chemical reaction

2. The law of multiple proportions is an extension of the law of definite composition, which states that compounds will consist of defined ratios of elements.

3. A reaction with more reactants will need more care because more products are produced, which can be toxic

4. H2 and Cl2 reactivity does not depend on the quantities but the chemical properties of each compound

Answer:

C₂H₄-CH₄-CH₂O-SO₂-Cl₂

Explanation:

The arrangement of gases in increasing order of the number of atoms that make up its molecule, from left to right, is C₂H₄-CH₄-CH₂O-SO₂-Cl₂.

Gas is one of the matters. It's invisible, and its particles are present very far away from each other. The atoms of the gas move randomly, and they are always in motion.

There are iii kinds of matter, solid, liquid, and gas. When there is a modification in temperature when there is a rise in temperature the solid becomes liquid and eventually, the liquid becomes gas.

The arrangement of gases in it increases the order of the number of atoms. So it can be identified by seeing the moles of elements that are shown in the chemical formula of gas.

Thus, the arrangement of gases is C₂H₄-CH₄-CH₂O-SO₂-Cl₂.

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Answer:

B

Carboxylic acid

Explanation:

I'm not entirely sure, but this should be it