(b)
The image below shows part of the surface of a leaf.
0.1 mm x 0.1 mm
The length and width of this piece of leaf surface are both 0.1 mm

Calculate the number of stomata per mm of this leaf surface.

Answers

Answer 1

Explanation:

You didn't attach a picture so i'll just explain how to find the number of stomatas/mm^2.

first you find the surface by multiplying the length by the width

0.1*0.1=0.01mm^2

now you count the numer of stomatas in the picture

in0.01mm^2 you have.........................x stomatas

in 1mm you have ...............................y stomatas

y=100x


Related Questions

So my younger sister says that since she hit puberty she can no longer be referred to as a child. I disagreed and called her a child anyways. Do you agree or disagree with my sister? SideNote: We are both minors so I think we are both still children.

Answers

Answer:

I would still refer to her as a child because even tho you may have hit puberty that doesn't mean that ur mentally ready to not be called a child.

Explanation:

In which direction is the wind likely to blow in the picture?
WATER
LAND
A. From the ocean to the land
B. From the sun to the land
O O O O
C. From the land to the ocean
D. From the land to the sun

Answers

Answer:

From the ocean to the land. just took the quiz.

Explanation: a p e x

During the day, the air above land in coastal regions warms up more quickly and starts to rise, hence option A is correct.

What is the direction of the wind?

As the warm air rises, a low-pressure region develops on the surface, enabling air from the sea to enter. As a result, the wind blows from the sea to the land during the day.

Predominant winds often blow east-west rather than north-south, especially in the afternoon when the land is being heated by the sun to its maximum.

the Coriolis effect causes wind systems to twist counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere most frequently in the spring and summer.

Therefore, because of the greater temperature differences between the ocean and nearby land, hence option A is correct.

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CHOOSE ONE: This organelle packages, processes, and sends proteins to their final destination.

Smooth ER

Rough ER

Golgi body

vacuole

Answers

Answer:

Golgi Body

Explanation:

The Golgi Body processes proteins made by the ER before sending the proteins to the cell.

what is the function of photosystems

Answers

Answer:

Photosystems are the functional units for photosynthesis, defined by a particular pigment organization and association patterns, whose work is the absorption and transfer of light energy, which implies transfer of electrons. Physically, photosystems are found in the thylakoid membranes.

Explanation:

The main functions of a photosystem are: they are a functional unit of photosynthesis, and they trap or release light.

What is a photosystem?

Plants, algae, and cyanobacteria all have thylakoid membranes that contain photosystems. These membranes are found in the cytoplasmic membrane of photosynthetic bacteria as well as the chloroplasts of plants, algae, and other vascular organisms. The PSI and PSII subtypes of photosystems exist.

The functional components of photosynthesis are called photosystem, and they are identified by specific pigment organization and association patterns.

Therefore, the photosystem is responsible for absorbing and transferring light energy, which entails transferring electrons. The thylakoid membranes contain photosystem in terms of physical location.

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What would happen if I poured a glass of water into a beaker with 90% clay and 10% sand? Would the water rush through the soil or would it move slowly through the soil? Please explain your answer.

Answers

Answer:

100 %

Explanation:

Answer:

It would move slowly

Explanation:

Clay is able to hold a large amount of water, sand, not so much. Because the majority of it is clay it shouldn't rush threw it. hope this helped

Francis Crick stated that information moves from ______ to ______ to ______.

Answers

Answer:

The double dna to helix

Explanation:

Describe the status of natural resources in the context of Nepal.​

Answers

Nepal's mineral resources are small, scattered, and barely developed. There are known deposits of coal (lignite), iron ore, magnesite, copper, cobalt, pyrite (used for making sulfuric acid), limestone, and mica. Nepal's great river systems provide immense potential for hydroelectric development.

I hope it help.

Green plants use energy from the Sun to change carbon dioxide and water into food and oxygen. What clue tells you that this process is a chemical change?

Answers

Answer:

Chemical change is a change in which there is rearrangement of atoms and thus new substance is formed. There may or may not be a change in physical state.

Photosynthesis is a phenomenon in which green plants containing chlorophyll use sunlight as a source of energy to convert carbon dioxide and water to form glucose and oxygen.  The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar and oxygen gas.

[tex]6CO_2+6H_2O\rightarrow C_6H_{12}O_6+6O_2[/tex]

Which factors contribute to the way organisms grow and develop? Choose the three that apply. A. Genetics B. Size C. Response to stimuli D. Structures E. Access to resources

Answers

Answer:

a

Explanation:

The factors that are important for the growth of the organism are the genetics, the response to stimuli, and the access to resources that are present in options A, C, and E.

What are the factors needed for the growth of the organism?

Organisms require certain conditions in order to grow, such as foods and nutrients; a source of energy and materials to build new cells and tissues, water, light, proper temperature, oxygen etc, and good health, as organisms that are diseased or injured may not be able to grow and function normally and after all, a suitable environment is needed that includes all these ,each organism has specific requirements for its habitat, such as the right temperature, humidity, and availability of resources and grow when they get it.

Hence, the factors that are important for the growth of the organism are the genetics, the response to stimuli, and the access to resources that are present in options A, C, and E.

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Which of the following are correct statements about the roles of DNA and RNA in a cell?
I. DNA contains the genetic instructions used in the development and functioning of living cells.
II. mRNA carries the genetic code from the nucleus to the ribosome for the creation of proteins.
III. TRNA transfers the amino acid to the ribosome for the creation of proteins.
A. I, II, and III
B. II and III only
C. I and III only
D. I and II only

Answers

Should be the Second option
Correct answer - C I abs III only.

Why? - DNA contains the instructions needed for an organism to develop, survive and reproduce. Transfer ribonucleic acid (tRNA) is a type of RNA molecule that helps decode a messenger RNA (mRNA) sequence into a protein. ... When a tRNA recognizes and binds to its corresponding codon in the ribosome, the tRNA transfers the appropriate amino acid to the end of the growing amino acid chain.

Is the Y chromosome an accurate indicator of a persons external sex? Paragraph explanation would be appreciated. :)

Answers

If by external sex, meaning gender, then yes, because X and X makes a female because that is the female genes but X and Y is the male gene so adding the Y would change the external sex.

which phase of the cell cycle do cells go to when they are not ready to divide?

Answers

Answer:

Interphase

Explanation:

Answer:

interphase

Explanation:

I hope this helps!!!

Which process is identified by number 1 in the diagram and where in the cell does this process occur?
DNA
mRNA
Protein
1
2
O replication; during the cell cycle
O transcription; in the nucleus of the cell
translation; at the ribosome
transcription; at the ribosome

Answers

Correct answer - Translation, at ribosome.

Why? - In molecular biology and genetics, translation is the process in which ribosomes in the cytoplasm or endoplasmic reticulum synthesize proteins after the process of transcription of DNA to RNA in the cell's nucleus. The entire process is called gene expression.

The process is identified by number 1 in the diagram and where in the cell does this process occur is translation, at the ribosome. Thus option 3 is correct.

What is translation?

Translation is defined as the process by which a messenger RNA (mRNA) molecule's sequence is converted into an amino acid sequence during protein synthesis.

It is also be defined as when DNA is converted to RNA in the cell's nucleus, the process through which ribosomes in the cytoplasm or endoplasmic reticulum synthesize proteins. Gene expression refers to the entire process.

Initiation, elongation, and termination are the three phases of an mRNA molecule's translation by the ribosome.

Thus, the process is identified by number 1 in the diagram and where in the cell does this process occur is translation, at the ribosome. Thus option 3 is correct.

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What is created when nucleotides join together into a polynucleotide?
A. Polysaccharide
B. Polypeptide
C. Protein
D. DNA

Answers

I believe the answer is DNA.

DNA is created when nucleotides join together into a polynucleotide. Thus, the correct option is D.

What are Nucleotides?

Nucleotides may be defined as a molecule that consists of a nitrogenous base, a phosphate group, and a pentose sugar.

Nucleotides are the monomers of nucleic acids (DNA/RNA). They are joined together by covalent bonds with the help of the phosphate group of one nucleotide and the pentose sugar of another nucleotide.

Therefore, the correct option for this question is D.

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For which reasons would a male peacock spread his
tail feathers? Check all that apply.
to cool off his body
to attract a peahen
to show that he is healthy
to protect his peachicks
to intimidate rival males
O to run from a predator

Answers

Answer:

to intimidate his predators

Explanation:

The reasons would a male peacock spread his tail feathers to intimidate rival males. Thus, option E is correct.

What are the principles of natural selection?

For natural selection to occur, four basic conditions are necessary:

Reproduction: organisms must reproduce to form new generations;Variability: there must be differences between individuals in the population;Heredity: Descendants must inherit characteristics from their parents.

Natural selection has been known as the evolutionary mechanism proposed by Charles Darwin, who stated that the environment acts as a selector of characteristics, perpetuating the organisms best able to survive in a given place.

Genes that encode bright feathers give an advantage to the male peacocks over other males which do not have an equally bright assortment of feathers, increasing the individual's reproductive success. This results in the advantageous genes such as of bright feathers recurring over the generations and remaining a part of the gene pool.

Therefore, The reasons would a male peacock spread his tail feathers to intimidate rival males. Thus, option E is correct.

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PLS HELP!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Other organisms were another factor. What kinds of changes in other populations of organisms could be affecting the moths?

Explanation:

umm.


What did Robert Virchow observe when he witnessed a cell dividing in half?

Answers

Answer:

The correct answer is - all cells arise from pre-existing cells.

Explanation:

Robert Virchow observed during the cell division in half that a single cell divide into two new cells therefore he suggested that, a famous aphorism Omnis cellula e cellula which means all cells arise from pre-existing cells. His observation is one of the major points of the cell theory.

This observation made by Robert Virchow becomes the fundamental basis of the cell theory which describes that cell divides to produce new cells. The other greatest observation made by him was that all cells not get sick or affected but a group of cells only.

How are the carbon and oxygen cycles interconnected?

A. The carbon dioxide produced during photosynthesis is used during respiration to produce oxygen.

B. The carbon on the surface of the Earth combines with oxygen in the air to form the water in the ocean.

C. The oxygen produced during photosynthesis is used during respiration to produce carbon dioxide.


D. The oxygen produced during photosynthesis becomes a component of water in the atmosphere.

Answers

Answer:

A.

Explanation:

Because carbon dioxide produce energy and releases oxygen

The oxygen and carbon cycles are interconnected as both produced or recycled by the living organisms as option C. The oxygen produced during photosynthesis is used during respiration to produce carbon dioxide.

Oxygen and carbon are moves between the atmosphere, biosphere, and lithosphere but the most important part is movement between the biosphere and atmosphere:

In the biosphere, carbon dioxide is used as a reactant to produce oxygen that moves to the atmosphere by the process called photosynthesis in plants.During cellular respiration atmospheric oxygen is used by the living organism to produce energy and releases carbon dioxide as a byproduct.

On the basis of the given explanation, the correct answer would be - Option C.

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What types of sources are reliable?

Answers

Answer:

A reliable source is one that provides a thorough, well-reasoned theory, argument, discussion, etc. based on strong evidence. Scholarly, peer-reviewed articles or books -written by researchers for students and researchers. Original research, extensive bibliography.

Explanation:

Hope this helps! Please mark brainiest!

Reliable  sources are usually sources that end in .org Im not sure about other sources but the most reliable ones would be the .org However, there are some .com sources that are reliable, Dont use Wikapedia, this website is a place where anyone and everyone can edit what the facts say.

I hope that this helps you out ^-^

Blood type is an example of

Answers

Answer:

Blood type is an example of  ✔ codominance

Explanation:

Blood type is determined by the  ✔ antigens  on the blood cells.

Antibodies  attack foreign blood that does not contain the same antigens.

Blood type is an illustration of codominance.

What is blood type?

Blood group also known as blood type refers to classification of blood on the basis of the absence and presence of antibodies and inherited antigenic components on the red blood cells surface. These antigens may be:

ProteinsCarbohydratesGlycolipidsGlycoproteins

The blood type in humans is an example of codominance. In codominance, neither of the allele can inhibit the expression of the other allele. One of the example is the ABO blood group in humans. In this, both the alleles A and  B are expressed.

Therefore, if a person is inheriting allele A from the mother and allele B from the father, he or she will have the blood type AB.

Thus, blood type is an example of codominance.

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Drop a paper a piece of thermocol and a piece of plastic from a height of 10 to 15 feet not the time for each object to hit the ground why does paper take more time than thermocol and thermocol more than the plastic piece make the paper to fell down in such a way that it should hit the ground before all of them and how does it happen

Answers

Answer:

The paper takes more time to fall than the piece of thermocol because it experiences a greater air resistance than the thermocol.

The thermocol takes more time than the piece of plastic because it experiences a greater air resistance.

The piece of paper can be made to fall faster than all of them and hit the ground faster by crumpling it and then giving it an initial velocity by throwing it downwards.

Explanation:

Objects falling freely due to the force of gravity alone are accelerated downwards at a constant value 9.8 m/s². This acceleration due to gravity is constant for all objects on the earth's surface and is independent of the mass of the objects.Therefore, when objects are release from the same height and allowed to fall freely under gravity, they are accelerated downwards to the same extent and are expected to hit the ground at the same time. However,due to the resistance of the air through which the objects are falling, they may hit the ground at different times depending on the shape of the falling objects.

Objects which have a greater surface area or volume per unit mass will experience a greater air drag or resistance and therefore, will take a longer time than objects of similar mass with a smaller volume or surface area.

The paper has a greater surface area per unit mass than the piece of thermocol, therefore, it takes more time to fall than the piece of thermocol because it experiences a greater air resistance than the thermocol.

The thermocol has a greater surface area per unit mass than the piece of plastic, therefore, it takes more time than the piece of plastic because it experiences a greater air resistance.

The piece of paper can be made to fall faster than all of them and hit the ground faster by crumpling it, thereby reducing its surface area per unit mass it and then giving it an initial velocity by throwing it downwards.

What is the role of photosynthesis and cellular respiration in the cycling of carbon; include the biosphere, atmosphere hydrosphere and geosphere?

Answers

Photosynthesis and cellular respiration are important components of the carbon cycle, in which carbon is exchanged among the biosphere, atmosphere, oceans, and geosphere through chemical, physical, geological, and biological processes.
Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere. Photosynthesis and cellular respiration are important components of the carbon cycle, in which carbon is exchanged among the biosphere, atmosphere, oceans, and geosphere through chemical, physical, geological, and biological processes.

1 point
This picture shows a cross-section of a blood vessel. The diameter of the
lumen in Figure 10 is 25.0 mm. What is the actual diameter of the lumen of
this blood vessel?
lumen
magnification X8
3.1 x 10-2m
3.1 x 10-3 m
O 2.0 x 10-2 m
2.0 x 10-3 m

Answers

Answer:

B. 3.12 x [tex]10^{-3}[/tex] m

Explanation:

From the given picture, it can be deduced that;

the diameter of the image of lumen = 25.0 mm

                                                      = 25.0 ÷ 1000

                                                      = 0.025 m

And,

magnification = [tex]\frac{diameter of the image of lumen}{actual diameter of lumen}[/tex]

But magnification = 8,and diameter of the image of lumen = 0.025 m.

So that;

8 = [tex]\frac{0.025}{actual diameter of lumen}[/tex]

⇒ actual diameter of lumen = [tex]\frac{0.025}{8}[/tex]

                         = 0.003125

Actual diameter of lumen of the blood vessel is 3.12 x [tex]10^{-3}[/tex] m.

Explain how the structure of a phospholipid affects the functionality of a cell membrane.​

Answers

The fundamental structure of the membrane is the phospholipid bilayer , which forms a stable barrier between two aqueous compartments . ... Proteins embedded within the phospholipid bilayer carry out the specific functions of the plasma membrane , including selective transport of molecules and cell - cell recognition .

Plss follow me and Mark as brainlest. Thanks :-)

What is in a starch molecule

Answers

Answer:

HOPE IT HELPS...

Explanation:

The basic chemical formula of the starch molecule is (C6H10O5)n.

Starch is a polysaccharide comprising glucose monomers joined in α 1,4 linkages. The simplest form of starch is the linear polymer amylose; amylopectin is the branched form.

(07.04 LC)
If the nuclear DNA in the sample is degraded, mtDNA can be used, but it cannot be linked to an exact person.
True
False

Answers

Answer:

True

Explanation:

I, myself, took this class and got this question correct.

Answer:

true

Explanation:

mtDNA dosent contain enough information to find one person

bacteria are both evil and friend to us​

Answers

if it's infects us it will be good or evil

A group of friends wants to go to the amusement park. They have $169.50 to spend
on parking and admission. Parking is $14.50, and tickets cost $38.75 per person,
including tax. How many people can go to the amusement park?

Answers

Answer:

Exactly 4 people can go.

Explanation:

First, you subtract $169.50 from 14.50, which is $155

Then, you do 38.75 x 4, to find out how much money it would cost for the tickets.

Since 38.75 x 4 = $155, exactly 4 people can go to the amusement park.

Answer:

Four people could go to the amusement park

Explanation:

38.75 X4=155+14.50=169.50

HELP! I'll give the brainliest!!

Answers

agianst a concentration gradient so the second one

Answer:

In facilitated diffusion, molecules move down their concentration gradient.

Explanation:

In facilitated diffusion, substances move into or out of cells down their concentration gradient through protein channels in the cell membrane. Simple diffusion and facilitated diffusion are similar in that both involve movement down the concentration gradient.

Osmosis refers specifically to the movement of water across a semipermeable membrane, with the solvent (water, for example) moving from an area of low solute (dissolved material) concentration to an area of high solute concentration.

Active transport is the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration. The particles move against the concentration gradient , using energy released during respiration .

will give brainliest
punnet square with cross between homzygous dominant parent and one heterozygous parent

Answers

Answer:

the bottom left one is the one

Answer:

top left

Hope that helps.

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