identify structure one and describe its main function.

identify structure 3 and describe its main function​.


30 POINTS

Identify Structure One And Describe Its Main Function.identify Structure 3 And Describe Its Main Function.30

Answers

Answer 1

Answer:

number 3 is the central vacuole and its  large, membrane-bound organelles found in plant cells that act as a storage space for water and other molecules in the cell

Explanation:

Answer 2

Answer:

3. Vacuole

Explanation:

Plant vacuole is a membrane (tonoplast) bound space which contains sap, water, excretory products and other materials (which are not useful for plants).



It occupies 90% of the volume of the plant cell.

Tonoplast, in plants facilitates transport of ion into the vacuole (against the concentration gradient) which causes higher ionic concentration in vacuole than in the cytoplasm.

Some other points:-

 Amoeba have contractile vacuole for osmoregulation and excretory purposes.

Some protists develop food vacuoles by engulfing food particles.

Related Questions

A _____ cell is one that has two copies of each chromosome.

a haploid

b monoploid

c somatic

d diploid

Answers

A diploid cell is one that has two copies of each chromosome and is denoted as option D.

What is a Diploid cell?

This type of cell has two copies of each chromosome which is usually from the mother and father.

Haploid cells on the other hand have only one set of chromosome thereby making it the most appropriate choice.

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Which description is common to most vascular and nonvascular organisms in the kingdom plantae
A. Use photosynthesis to get nutrients
B. Produce cones
C. Produce pollen
D. Have stamens and pistils

Answers

B is the answer you don’t have to trust me

An abdominal hernia results when weakened muscles allow the protrusion of abdominal structures. In one type of abdominal hernia, parts of a serous membrane and the small intestine form the bulge. Which serous membrane is involved?.

Answers

Answer: The peritoneum

Explanation: It is the membrane that lines the abdominal cavity and (completely or partly) encloses most of the organs in the abdomen. The protruding pouch, called the hernia or hernial sac, may contain parts of organs such as the bowel or stomach.

An abdominal hernia is the intestinal protrusion and tissues from the abdominal gap. The peritoneum serous membrane is involved in the bulging of the tissue from the small intestine.

What is an abdominal hernia?

The abdominal hernia has been the extension of the tissues and part of the intestine from the gaps of the wall that may be caused due to injury, surgeries, pressure on muscles, irregular bowel movement, heavy exercises, excessive vomiting, etc.

The peritoneum is a serous membrane of the abdomen region involved with the covering of the internal abdominal organs. It supports the internal structures and can be protruded as a hernia from the weakened walls and muscles of the abdomen region near the belly.

Therefore, the peritoneum is the serous membrane involved in an abdominal hernia.

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A population of mice lives on an island in the Pacific Ocean. From year to year, the size of the adult population remains at about 300 individuals, and the variety and frequency of the traits of the mice change very little.

Which of these events would be MOST likely to cause an evolutionary change to the mouse population on the island?

O A. an island predator killing and eating 50 mice.

O B. a storm that drowned about 50 mice all across the island.

O C. a mutation in the skin cells of an adult mouse.

O D. a drought that reduced and altered the food supply of the mice.

O E. a breeding pair of mice producing an unusually large number of offspring.

Answers

Answer:

cbd

Explanation:

C, a mutation in the skin cells of an adult mouse, is the occurrence that would be most likely to lead to an evolutionary shift in the mouse population on the island.

What is the genetic variety ?

Genetic variety, which is the foundation of evolution, is mostly produced via mutations. Mutations can result from external sources like radiation or chemicals or spontaneously arise as DNA is replicated during cell division.

A change in a mouse's genes resulting from a mutation in its mature skin cells might be passed on to the mouse's progeny. The other things on the list wouldn't affect the population of mice in an evolutionary way. Event A, a predator on an island killing and devouring 50 mice, would cause the population to decline.but would not result in an evolutionary shift due to size.

Even though Event B, a storm that drowned roughly 50 mice over the whole island, reduced the population number, it had no evolutionary impact. Even though Event D, a drought that reduced and altered the mice's food supply, did not affect evolution, it may have changed the mice's behaviour, such as making them more competitive for food.

The population would grow as a result of Event E, a mating couple of mice having an abnormally high number of offspring, but no evolutionary change would result.

In conclusion, C, a mutation in an adult mouse's skin cells, is the scenario that would most likely result in an evolution of the mouse population on the island.mouse. The main cause of the genetic variety that underlies evolution, mutations can alter the genes that are handed down to the next generation. The other things on the list wouldn't affect evolution.

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I need your guys's help!
I had a science exam a day or two ago, and this was one of the questions:
Identify and name the cell organelle:
M- It allows transportation of materials in and out of plant cell.
Isn't the correct answer supposed to be cell membrane? Even though they mentioned in a plant cell.. Because the cell wall is completely permeable.. so it lets anything pass through.. but the cell membrane decides and allows materials to enter and exit the cell..
The teacher said the correct answer is cell wall though.. I would like to know your thoughts!

Answers

The correct answer is the cell membrane because it is the second last semi-permeable layer of the cell.

What is the function of cell membrane?

The cell membrane is a semi-permeable barrier that is responsible for allowing molecules across the cell when it is needed by the cell.

So we can conclude that The correct answer is the cell membrane because it is the second last semi-permeable layer of the cell.

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The cell membrane allows the transportation of materials in and out of plant cells, although the cell wall is also key for these processes.

What is the cell wall?

The cell wall is a rigid structure located outside the plant cell that protect it against friction and osmotic stress.

The cell wall is also required to transport substances in and out of the plant cell by pores present in this structure.

Moreover, the cell membrane is a physical barrier that allows the interchange of nutrients and waste materials between the cell and its surrounding environment.

In conclusion, the cell membrane allows the transportation of materials in and out of plant cells, although the cell wall is also key for these processes.

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Use the following table to answer the question:


Codons Found in Messenger RNA
Second Base
First Base U C A G Third Base
U Phe
Phe
Leu
Leu Ser
Ser
Ser
Ser Tyr
Tyr
Stop
Stop Cys
Cys
Stop
Trp U
C
A
G
C Leu
Leu
Leu
Leu Pro
Pro
Pro
Pro His
His
Gln
Gln Arg
Arg
Arg
Arg U
C
A
G
A Ile
Ile
Ile
Met Thr
Thr
Thr
Thr Asn
Asn
Lys
Lys Ser
Ser
Arg
Arg U
C
A
G
G Val
Val
Val
Val Ala
Ala
Ala
Ala Asp
Asp
Glu
Glu Gly
Gly
Gly
Gly U
C
A
G


This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Val-His-Thr?
GUA-CAU-ACC
GTA-CAT-ACC
CAT-GTA-TGG
CAU-GUA-UGG

Answers

Translating the code by the table informed, the message found in rna will be CAT-GTA-TGG.

What is the genetic code of DNA is RNA?

The genetic code is made up of four bases: adenine (A), cytosine (C), guanine (G) and uracil (U). The combination of these bases determines the amino acid necessary for the formation of a protein.

Translation is a process in which the message contained in the mRNA molecule will be read by the ribosome, decoding the nucleic acid language into the protein language. In this case, we have:

GTA-CAT-ACC

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Answer:

the answer is CAT-GAT-TGG

8. A cladogram is shown below.
a) What is the outgroup of this cladogram? (2 points)
b) Name all of the traits that the mackerel has, based on this cladogram. (3 points)
c) Which trait evolved first, lungs or hair? Explain how you know. (3 pojnts)

Answers

Here the outgroup is a protozoa, and all of the traits that the mackerel has are a jaw, a segmented body, and a multicellular body. Lungs evolved first as frog has lungs and then hair evolved.

What is a cladogram?

A cladogram is a diagram used in cladistics, which is a method of analyzing biological relationships based on shared, derived traits. It is a branching diagram that shows the evolutionary relationships among a group of organisms based on similarities and differences in their physical or genetic characteristics. The organisms are grouped into clades, which are defined by shared derived characteristics, or synapomorphies. Synapomorphies are traits that have evolved from a common ancestor and are present in all of its descendants.

Hence, the outgroup is a protozoa, and all of the traits that the mackerel has are a jaw, a segmented body, and a multicellular body. Lungs evolved first as frog has lungs and then hair evolved.

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2. Which of the following statements is true about agricultural productivity in the United States since 1948?

A. Agricultural productivity has increased since 1948.

B. Agricultural productivity has not changed since 1948.

C. Agricultural productivity has not been measured since 1948.

D. Agricultural productivity has decreased since 1948.

Answers

Answer:

C. Agricultural productivity has not been measured since 1948.

Answer:

A

Explanation:

it has increased 175 percent since then

A(n) ________ is a hard outside covering that is used for protection and prevents the inner body area from drying out.

exoskeleton
endoskeleton
cuticle
cilia

Answers

The cuticle is the most exterior layer of arthropods' tegument, and its principal function is to protect the body and avoid dehydration. Option C is correct. Cuticle.

What is the cuticle?

The cuticle is the most exterior layer of arthropods' tegument. It is secreted by the epidermis and develops right over it.

It is composed of two main layers,

epicuticle ⇒ outermost layerprocuticle ⇒ inner layer

The cuticle is mainly made of chitin, and its function is to protect the organism's body and avoid dehydration.

Because it avoids dehydration it is believed that arthropods had such an evolutive and adaptative successful in their transition from water to the land.

The cuticle also provides support to the body and a muscle attachment surface.

The correct option is C. Cuticle

A _Cuticle_ is a hard outside covering that is used for protection and prevents the inner body area from drying out.

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Determine which of the following statements is true about energy in ecosystems.
A. Primary producers lose 20% of the energy they absorb as urine and feces.
B. Consumers pass on 20% of the energy they get from a lower trophic level.
C. Primary consumers lose 60% of the energy they absorb from producers as urine and feces.
D. 10% of the energy Primary consumers absorb is lost as heat.

Answers

The community along with the biotic and abiotic factors makes the ecosystem. In the ecosystem, 10% of the energy primary consumers absorb is lost as heat. Thus, option D is correct.

What is an ecological pyramid?

An ecological pyramid is the graphical presentation of the organism and the flow of energy at each trophic level. The trophic level constitutes the producers and the consumer.

The flow of energy follows the 10% energy rule where each trophic level loses and gains only a certain amount of heat. The heat is lost as excretory products in the environment.

The maximum amount of energy is gained by producers which passes to the primary consumers (10%), secondary consumers (1%), and the upper trophic level.

Therefore, option D. primary consumers absorb only 10% of energy.

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Which energy source contributes least to global warming?
A. Coal
B. Oil
C. Geothermal
D. Natural gas​

Answers

Answer:

C. Geothermal

I Hope im correct ^^

Answer:

C. Geothermal

Explanation:

It's a renewable energy unlike the rest of the options.

How is meiosis different from mitosis.

Answers

Answer:

the answer is b

Explanation:

at the end of meiosis, each gamite has two full sets of chromosones

Which of the following would NOT be an adverse effect of the human population?
decline in aquatic life in certain rivers
damages to soil and water sources
technological advancements
loss of forests for land development

Answers

The 3rd one: Technology advancements

The layer of the uterine wall that is shed during menstruation is the:.

Answers

Answer:

The layer of the uterine wall that is shed during menstruation is the endometrium

ANSWER FAST PLS! (For a project) State and describe three different ways that agricultural engineering (machines, tools, irrigation systems, pesticides, fertilizers, genetic modification) could be applied to help reduce the loss of wheat crops in drought conditions.
Use complete sentences, proper capitalization & punctuation
Have 3 sentences telling 3 different ways to help with the wheat crop during a drought

Answers

Irrigation is an artificial technology that helps to obtain water and thus recover the loss in extensive (wheat) crops.

What is irrigation?

Irrigation is a technology based on the artificial supply of water to recover crops from drought conditions.

Genetic modification may also help with drought conditions by inserting into the genome of the target species gene sequences associated with hydric stress (e.g., a protein channel to close stomata at night).

In conclusion, irrigation is an artificial technology that helps to obtain water and thus recover the loss in extensive (wheat) crops.

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What elements are always present in protein?
A. radium, boron, fluorine, and chlorine
B. mercury, iron, lead, and aluminum
C. carbon, hydrogen, oxygen, and nitrogen
D. neon, argon, krypton, and copper
ہے

Answers

What elements are always present in protein?

A. radium, boron, fluorine, and chlorine

B. mercury, iron, lead, and aluminum

C. carbon, hydrogen, oxygen, and nitrogen ( ✔ )

D. neon, argon, krypton, and copper

Explanation :

Proteins are one of the primary constituents of living matter. They consist of long chains of amino acids, which are bonded together by peptide linkages and thus called polypeptides. There are about 20 amino acids, and the atoms most prevalent in these are carbon, hydrogen, oxygen, nitrogen, and sulphur.

The elements that are always present in protein is carbon, hydrogen, oxygen, and nitrogen. The correct option is C.

Proteins are large molecules made of amino acids that are crucial for a number of biological processes in living things. Proteins usually contain the following elements: carbon (C), hydrogen (H), oxygen (O), and nitrogen (N).

These components serve as the fundamental building blocks of amino acids, which are joined by peptide bonds to form protein chains.

The fundamental components that are consistently present in all proteins are carbon, hydrogen, oxygen, and nitrogen, while other elements, such as sulphur (S) and phosphorus (P), can also be found in some proteins.

Thus, the correct option is C.

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What are the benefits of planting only native species when implementing rain gardens, no-mow native meadows, and/or tree plantings?

Answers

All options above are potential benefits of planting only native species when implementing rain gardens, no-mow native meadows, and/or tree plantings.

What are native species?

Native species are species that evolved in a particular environment and therefore they are well adapted to it.

Native plants are well know to be more adapted to survival and do not need extra watering to survive.

In conclusion, all options above are potential benefits of planting only native species when implementing rain gardens, no-mow native meadows, and/or tree plantings.

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In humans, six fingers (f) is the dominant trait; five fingers (f) is the recessive trait. if the father is heterozygous for six fingers and the mother has five fingers, what is the probability of their offspring having five fingers

Answers

The probability of the offspring of a heterozygous father and homzygous mother having five fingers is 50%.

How to calculate genotype of a cross?

According to this question, a gene coding for the number of fingers in humans is involved. The allele for six fingers (F) is the dominant trait while the allele for five fingers (f) is the recessive trait.

If a cross between a heterozygous father that posseses a genotype of Ff and a homzygous mother that posseses a genotype of ff, the following offsprings will be produced:

FfFfffff

This shows that the probability of the offspring of a heterozygous father and homzygous mother having five fingers is ½ (50%).

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what type of carbohyydrates does milk contain? egenuity?

Answers

Lactose, or milk sugar

Explanation:

Lactose, or milk sugar, is the main carbohydrate found in milk. It's broken down into its subunits — glucose and galactose — in your digestive system.

Can you help me please

Answers

Answer:

How can we help you in math or another subject?

What adverse effects does covering the land with concrete and asphalt create?
Vegetation and trees cannot grow.
The flow of water in rivers is changed.
Non-native species are introduced to a foreign environment.
Natural resources are depleted.

Answers

Adverse effects of covering the land with concrete and asphalt is Natural resources are depleted.

Asphalt is a petroleum-based product. Concrete requires rock, sand and a fabricated cement component to strengthen the material hold the pavement material.Fortunately, industry innovation has led to meaningful progress toward resource conservation.Road construction companies have developed ways to reuse existing concrete and asphalt by remixing it materials.

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Unlike natural selection, genetic drift is based solely on which of the following?
O Migration
O Chance
O Mutations
O Genotype of the individual

Answers

Answer:

Chance

Explanation:

Genetic drift is the sudden disappearance of different genetic traits within a population. Genetic drift occurs most commonly due to accidents or chance scenarios.




3. Identify the independent variable: A scientist wanted to see if temperature affected the male/female ratio in alligator eggs. She took 5 clutches of eggs and placed them in different incubators. Each incubator had a temperature 5 degrees different from the other. Each had a humidity of 87% and received 16 hours of simulated sunlight.

A. 16 hours of sunlight
B. Temperatures
C. 87% humidity

Answers

Answer:

answer is a

Explanation:

hope this helps

The division of genetic material in a eukaryotic cell is called: replication. mitosis. cytokinesis. binary fission.

Answers

Mitosis happens in eukaryotic cells.

Bacteria that are resistant to more than one antibiotic are called superbugs. Compare the control and antibiotic data from the three farms and select all the true statements

Answers

After comparing the correct statements are another superbug was created by using the same method of giving antibiotics to chickens as Monita Farms and the data for the control farm shows that not administering antibiotics helps to prevent superbug creation.

What are superbugs?

Antibiotics are the drugs that are used to kill bacteria, but some develop resistance against it called superbugs.

According to the given scenario, another superbug was created by using the same method of giving antibiotics to chickens as Monita Farms.

Also the data for the control farm shows that not administering antibiotics helps to prevent superbug creation.

Thus, these were the two correct statements.

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some chains of carbon atoms bend when the carbon atoms:

A. form single covalent bonds.
B. form double covalent bonds.
C. form bonds with oxygen atoms.
D. form bonds with hydrogen atoms.

Answers

Answer:

Fats with at least one double bond between carbon atoms are unsaturated fats. When some of these bonds are in the cis configuration, the resulting bend in the carbon backbone of the chain means that triglyceride molecules cannot pack tightly, so they remain liquid (oil) at room temperature.

A student carried out an experiment to model the digestion of starch by the enzyme amylase in the small intestine.

Visking tubing is a selectively permeable membrane that has small holes in it to allow small molecules to pass through. At regular intervals, the student tested the liquid inside and outside the Visking tube.
How could the student test for the presence of starch inside the Visking tubing?

Answers

Answer:

Put one drop on the dimple tile, and the rest in a test tube. Then put the teat pipette back in the water outside the Visking tubing. Test the drops of liquid in the dimple tile by adding one drop of iodine solution from the dropper bottle. If they turn blue-black, the liquid contains starch.

Explanation: i hope this helped :)

Evidencia de los colonos de Washington

Answers

Ronyhdhdhdhdhjsjsjsjsjsjs

Hemlock trees support life of other organisms. Climate change has increased the rate of infection of Hemlocks with woolly adelgid. These kill the trees which decrease the habitat of animals and other insects. This is an example of how climate change impacts the

Answers

Answer:

Don't know your answer choices, though if one of them is "Community Level" that is the correct one.

Explanation:

Found on other websites, and just completed a quiz with the same answer.

Explain why the northern hemisphere receives more solar energy from the sun between june and august than the southern hemisphere receives between june and august.

Answers

Answer:

Whichever hemisphere (the Northern or Southern Hemisphere) is tilted toward the sun receives more direct rays of sunlight (or rays that are closer to perpendicular or a 90° angle). The hemisphere tilted toward the sun also has more hours of daylight than the hemisphere that is tilted away from the sun

Explanation:

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