what are pollination and fertilization?​

Answers

Answer 1
Pollination is the transfer of pollen grains from an anther to a stigma. Pollen can be transferred by an animal or by the wind. Fertilisation takes place inside the ovary when the nucleus of pollen grain fuses with the nucleus of an ovule to produce a zygote.

Fertilization occurs when pollen grains (male gametophytes) are carried by the wind to the open end of an ovule, which contains the eggs, or female gametophyte. There, the pollen grain develops an outgrowth called a pollen tube, which eventually penetrates to the egg cell within one of the archegonia.

Related Questions

A camel has a hump to store water so it can survive in its desert environment. Which kind of adaptation is this?
A camel’s hump is an example of
adaptation.

Answers

Answer:

Camels actually store FAT and not water in their hump. This is called structural adaption.

Explanation:

Camels’ unique physiology and adaptations allow them to survive, even in the harshest conditions of the desert. Camels have thick fur to protect them from the heat, fat hump to serve as food storage, they rarely sweat, and can go for weeks without water. These are only a few reasons how camels survive in the desert, even without water.

Hope this helps you!

Cartilage is separated from surrounding tissues by a fibrous.

Answers

Cartilage is separated from surrounding tissues by a perichondrium.

What separated the cartilage from the tissue?

Cartilage is separated from the surrounding tissues by perichondrium. It consist of two layers i.e. Outer Fibrous Layer that provides protection, mechanical support. It also attaches the cartilage to other structures.

So we can conclude that Cartilage is separated from surrounding tissues by a perichondrium.

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According to the research, cartilage is separated from surrounding tissues by a fibrous perichondrium.

What is a cartilage?

It is a specialized connective tissue that is devoid of nerves, blood vessels and lymphatic vessels.

These tissues allow the joints to move, protect the ends of the bones and act as a support against possible blows.

Therefore, we can conclude that according to the research, cartilage is separated from surrounding tissues by a fibrous perichondrium.

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Which statement about bones is
INCORRECT?
A. Babies' bones are mostly cartilage.
B. Ossification is the process of bone
development.
C. Blood vessels run around bones and not
through.
D. Bones are made of living tissues.

Answers

I believe the answer is: C

what happens once the neurotransmitters are released into the synapse?

Answers

Once, neurotransmitters are released into a synapse, an action potential is generated in the postsynaptic neuron.

What are neurotransmitters?

Neurotransmitters are molecules which produce a nervous impulse when they are released into the junction of two nerves called a synapse.

Some examples of neurotransmitters are acetylcholine and dopamine.

Once, neurotransmitters are released into a synapse, an action potential is generated in the postsynaptic neuron.

Therefore, neurotransmitters are important in neuronal impulse transmission.

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What causes the
sun's rays to hit
different parts of
earth at different
angles?
A. the curve of the earth
B. the magnetic field of the
earth
C. the distance between
the sun and the earth
D. more wind from the
equator

Answers

Answer:

B

Explanation:

B is the answer because the magnetic field of the earth attracts sun Ray's

Which best describes the nature of cellular respiration?
OIt is an energy-seeking process.
OIt is an energy-gathering process.
OIt is an energy-releasing process.
OIt is an energy-destroying process.

Answers

Energy releasing process
Hope this helps

The nature of cellular respiration is an energy-releasing process. Therefore, the correct statement is option C.

What is the process of cellular respiration?

The process of cellular respiration releases energy. In order to liberate energy from foods and create ATP (adenosine triphosphate), the molecule that transports energy in cells, a metabolic process takes place in the cells of living things.

Organic substances, like glucose, are broken down in a sequence of enzyme processes that release the stored energy, which is then collected in the form of ATP, during cellular respiration.

Since this process takes place in the presence of oxygen, it is also known as aerobic respiration. Living organisms depend on cellular respiration to survive because it helps in the transportation of the energy needed for all of their cellular functions.

Therefore, the cellular respiration is an energy-releasing, and a metabolic process takes place in the cells of living things.

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A solution that has an osmotic pressure less than that of red blood cells is called:.

Answers

The answer is Hypotonic

___________ provide motility to a sperm cell, ___________ act as sensory "antennae" in many cells and ____________ Increase a cell surface area

Answers

Flagella provide motility to a sperm cell, cilia act as sensory "antennae" in many cells and microvilli Increase a cell surface area

What is flagella, cilia and microvilli?

Flagella is a hair-like structure used by cells for locomotion or movement. The sperm makes use of flagella for locomotion.

Cilia is a hair-like structure that is found on the surface of organisms which are sensitive to touch.

Microvilli is a hair-like structure that is richly fortified with blood vessels found in areas for absorption. This is because it increases the surface area.

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What would most likely prevent the outside-in model from becoming an accepted scientific theory

Answers

Answer:

THE RESEARCH

Explanation:

Answer:

the research

Explanation:

Organisms with the most beneficial traits will survive. This is commonly known as.

Answers

Natural selection

Bc it is

why is modern view more convenient regarding mixing of blood in ventricle in frog??​

Answers

Answer:

Frogs are often used in dissection when demonstrating the organ systems of a complex organism. The presence and position of the organs found in a frog are similar enough to a person to be able to provide insights into the internal workings of the human body.

Sort the activities based on whether they decrease or maintain biodiversity.

Answers

The activities that decrease the biodiversity are excessive mining to obtain minerals and releasing sewage water into lakes.

The activities that  maintain biodiversity are planting more trees and prohibiting fishing during breeding season.

What is biodiversity?

The range of plant and animals on the planet or in a specific natural surroundings, that is significant and desirable.

Nature was despite everything is a productive wellspring of motivation in drug store, beauty care products, and agro-food enterprises for the revelation of bioactive items.

Informatics is currently present in most human exercises.  In silico devices might help in various situations while concentrating on normal substances: in pharmacognosy, to store and construction the enormous and expanding number of information, and to work with or speed up the examination of regular items concerning conventional purposes of normal assets; in drug revelation, to soundly plan libraries for screening normal compound mimetics and distinguishing proof of organic exercises for normal items.

The activities based on whether they decrease or maintain biodiversity are:

Maintains :planting more trees

Decreases: excessive mining to obtain minerals

Decreases: releasing sewage water into lakes

Maintains: prohibiting fishing during breeding season

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Answer:

Explanation:

PLANTING MORE TREES EXCESSIVE MINING TO OBTAIN MINERALS RELEASING SEWAGE WATER INTO LAKES PROHIBITING FISHING DURING BREEDING SEASON



Which correctly describes crossing over?
the process whereby non-sister chromatids exchange genetic material
the process whereby homologous chromosomes are pulled to opposite poles of the cell
the process whereby sister chromatids are pulled to opposite poles of the cell
the process whereby homologous chromosome pairs align randomly along the metaphase plate

Answers

The correct option is A ie the process whereby non-sister chromatids exchange genetic material

Between prophase I and metaphase I, a process known as crossing over occurs in which two homologous non-sister chromatids join up and exchange various pieces of genetic material to create two recombinant chromosome sister chromatids.When genetic material is switched between two chromosomes, this process is known as crossing over.It is in charge of causing genetic variation among members of a species.Only the reproductive cells known as gametes undergo this process.The steps involved in crossing over are as follows:

1) Synapsis.

2) Chromosome duplication

3) Crossing over.

4) Terminalizataion.

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Answer: A.) the process whereby non-sister chromatids exchange genetic material

Explanation: trust

There are economic concerns surrounding the products that have been genetically engineered for
particular traits, including pharmaceutical products, crops, and enzymes used in manufacturing
processes. What are the proposed economic concerns that affect society? Check all that apply.
Prices for genetically engineered products are raised as a result of patents on products.
Farmers must spend more money to obtain genetically engineered seeds for desired crops.
Consumers must spend more money to purchase genetically engineered products.
More land is utilized for genetically engineered crops than for organic crops.
RETRY

Answers

The  genetically engineered foods are those foods that are produced by the process of genetic engineering (options B&C)

What are  genetically engineered foods?

The  genetically engineered foods are those foods that are produced by the process of genetic engineering. They are specifically designed for various purposes.

The economic concerns that affect society regarding the  genetically engineered foods are;

Farmers must spend more money to obtain genetically engineered seeds for desired crops.Consumers must spend more money to purchase genetically engineered products.

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In mitochondrial electron transport, what is the direct role of.

Answers

Answer:

O2 participates in cellular respiration

Explanation:

The only place that O2 participates in cellular respiration is at the end of the electron transport chain, as the final electron acceptor. Oxygen's high affinity for electrons ensures its success in this role.

The amount of blood ejected with each beat of the heart is known as:

Answers

The amount of blood ejected with each beat of the heart is known as the Stroke volume

What is Stroke volume?

Stroke volume is the volume of blood pumped out of the left ventricle of the heart during each systolic cardiac contraction.

It is the difference between end-diastolic and end-systolic volumes.

Thus, it is the volume ejected with each heart beat.

Hence, the amount of blood ejected with each beat of the heart is known as the Stroke volume

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Which of the following is a function of the plasma membrane?
a. breaks down lipids, carbohydrates, and proteins from foods
b. stores water, salt, proteins, and carbohydrates
c. keeps the cell wall in place
d. regulates which materials enter and leave the cell

Answers

It’s either A or C the answer

Internal membrane-bound compartments located in the cytoplasm of eukaryotic cells are called.

Answers

Internal membrane-bound compartments located in the cytoplasm of eukaryotic cells are called organelles.

What is a membrane-bound compartment within the cell?

An organelle is a membrane-bound compartment or structure in a cell that serves a particular function.

In the less-stricter definition, an organelle directs to any cellular structure, whether it is membrane-bound or not, that has a special function.

Thus organelles are the answer.

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What is the role of RNA polymerase?Which molecule brings amino acids to the ribosomes to be assembled into proteins?

Answers

An enzyme called RNA polymerase is in charge of converting a DNA sequence into an RNA sequence during transcription.

The molecule that brings amino acids to the ribosomes to be assembled into proteins is Transfer RNA (tRNA) . Transfer RNA (tRNA), small molecule in cells that carries amino acids to organelles called ribosomes, where they are linked into proteins.

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explain the terms of obligate categories discuss the various intermediate categories.​

Answers

refer to the taxonomic groups that are consistently utilized in organism hierarchy classification. Sub-phyla, subclasses, suborders, subfamilies, subgenera, and variations are a few examples of .

:It is challenging to classify newly discovered creatures into established categories. As a result, the prefixes "super" and "sub" have been added to the existing categories, such as sub-kingdom, sub-phylum, super class, etc. These are categorized as . This has also made the placement of different taxa more soundly and scientifically.

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help me to answer this​

Answers

Answer:

Explanation:

No I don't think so because there are animals who live there and he shouldn't destroy their habitat


Select ALL the correct answers.
Which statements are true regarding an energy pyramid?

The number of producers is greater than the number of primary consumers.

The amount of energy at the primary consumer level is greater than the amount of energy at the
secondary consumer level.

The number of primary consumers is less than the number of secondary consumers.

The amount of energy at the producer level is less than the amount of energy at the primary
consumer level.

Answers

Explanation:

The number of primary consumers is less than the number of secondary consumers.

what does the sympathetic and parasympathetic do ?

Answers

The sympathetic and parasympathetic are responsible for the body's spontaneous actions, such as breathing, heartbeat, digestion, body temperature control.

What is the function of the sympathetic and parasympathetic nervous systems?

The sympathetic nervous system acts in an opposite way to the parasympathetic one, preparing the organism to react in situations of fear, stress and excitement, adapting the functioning of several internal systems to a high state of readiness.

In this case, the Sympathetic nervous system also controls body functions that are rarely conscious and parasympathetic nervous system the part of the autonomic nervous system responsible for stimulating actions that allow the body to respond to calm.

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Whenever electrosurgical instruments are used, the irrigation fluid must be ________.

Answers

The irrigation fluid must be non-electrolytic whenever electrosurgical instruments are used.

What is an irrigation fluid?

An irrigation fluid can be defined as any fluid that is typically used to rinse or wash an electrosurgical instrument, organ or body cavity.

As a general rule and standard, it is very important that the irrigation fluid must be non-electrolytic whenever electrosurgical instruments are used in order to prevent electric hazard or electrocution.

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1.write the chemical equation for transpiration
2.what is translocation ??,give the chemical equation for translocation
plss help will mark brainlest..​

Answers

Answer:

Explanation:

1.6CO2 + 6H2O — > C6H12O6 + 6O2.

2.Conducting tissue is concerned mainly with the transport of soluble organic material made during photosynthesis. This process of transportation is called as translocation.

why does the structure of the plasma membrane make this type of transport neccesary for fluids

Answers

Explanation:

Both phospholipid molecules and embedded proteins are

able to diffuse rapidly and laterally in the membrane. The

fluidity of the plasma membrane is necessary for the

activities of certain enzymes and transport molecules

within the membrane .and also The plasma membrane, or the cell membrane, provides

protection for a cell. It also provides a fixed environment

inside the cell, and that membrane has several different

functions. One is to transport nutrients into the cell and

also to transport toxic substances out of the cell .

what does the somatic nervous system do ?

Answers

According to the research, the somatic nervous system is responsible for transmitting sensory information as well as to the muscles.

What is the somatic nervous system?

It is a complex group of nervous structures that is divided into two main groups, these are the Central Nervous System and the Peripheral Nervous System.

It is responsible for transmitting sensory information and sending motor control information to the skeletal muscles.

Therefore, we can conclude that according to the research, the somatic nervous system is responsible for transmitting sensory information as well as to the muscles.

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What is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. This process in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct

Answers

The methodology by which green plants and some additional organisms use sunlight to synthesize foods from carbon dioxide and water is known as Photosynthesis.

What are the factors instructed to perform photosynthesis?

The factors or parameters which are required to perform photosynthesis by plants are water, carbon dioxide, and sunlight.

Photosynthesis typically involves the green pigment chlorophyll and induces oxygen as a byproduct. The chemical reaction of photosynthesis is as follows:

[tex]6CO_2 + 12H_2O[/tex] ⇒ [tex]C_2H_1_2O_6 + 6O_2 +6H_20[/tex].

Therefore, it is well described above.

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summary of what occurs during transcription

Answers

The act of copying information from a strand of DNA into a fresh messenger RNA molecule is called transcription (mRNA).

DNA preserves genetic material as a reference or template safely and permanently in the cell nuclei.

The process of gene expression starts with transcription. A gene's DNA sequence gets transcribed into RNA during this process. The DNA double helix must unwind close to the gene being transcribed before transcription can begin. A transcription bubble is the term for the area of opened-up DNA.

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the main goal of poaching is

Answers

The main goal of poaching is to make money from the parts of the animals poached.

What is poaching?

Poaching refers to the illegal and indiscriminate hunting of animals for a part of the animal which is of economical value in the society.

The most commonly poached animals are elephants for theirs tusks, tigers for their skin, pangolins for their scales.

Therefore, the main goal of poaching is to make money from the parts of the animals poached.

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Other Questions
Find the independent clause dependent clause in these sentences for me please!! Simplify cube root of 5 over fourth root of 5 . (5 points) 5 to the power of 1 over 4 5 to the power of 1 over 12 5 to the power of 7 over 12 5 to the power of 4 over 3 To what is the writer referring to in this line? The most real things in the world are those that neither children nor men can see. What geological change and event occurs at a transform boundary? A. Plates collide, and a trench is formed.B. Plates move apart, and a rift is formed.C. Plates collide, and a mountain is formed.D. Plates slide past one another, and a fault is formed. what is the volume of a cone if the height is 18 and the radius is 4 What is the domain of the function shown in themapping?Ox|x=-5, -3, 1, 2, 6}O lyly=-9, -6, 0, 2, 4)O {x|x=-9, -6, -5, -3, 0, 1, 2, 4, 6}Oyly=-9, -6, -5, -3, 0, 1, 2, 4, 6} Simplify each expression.10xy5xyx = 0, y = 0 What is the solution of the following system?Use the substitution method.{3x+2y=11x2=4yA.) The only solution is (12, - 5/2)B.) The only solution is (4, - 1/2)C.) There is no solutionD.) There are an infinite number of solutions Which regionwas once known as "No Man's Land?" Louisiana What is the measure of the apothem, rounded to the nearest hundredth of a centimeter? Use the drawing tools to form the correct answer on the graph. Graph the line that represents this equation: y=-5x+2 What is the solution set of -|-x| = -12?O no solutionO {-12}O {12}O {-12, 12} Given that the slope is 4 and (4, 6) is on the line. Write the equation of the linein the slope-interceptform Determine the measure of angle BFE 1 ) 69 degrees 2 ) 112 degrees 3 ) 11 degrees 4 ) 224 degrees explain how automation impacts network management Please help, I don't know the formulas to do these and I'd like to know HOW y'all get the answers...thank you so much.A technician produced H2 gas by reacting zinc (Zn) with sulfuric acid (H2SO4). The reaction was: 2Zn (s) + H2SO4 (aq) ----> Zn2SO4 (aq) + H2He collected the hydrogen in a flask by water displacement. Atmospheric pressure was 737.2 torr, and room temperature was 25.0 degrees celsius. a. What was the vapor pressure in the water flask?b. What was the pressure of H2 in the flask?c. Suppose that a leak in the gas collection tubes accidentally let a small amount of air into the flask. The unwanted air exerts 25.2 torr of pressure in the flask. How much pressure is the H2 exerting in the flask? what concept did the ancient Greeks develop and is now considered the greatest gift to western civilization of today??? Whats the answer here? Answer ASAP please. Which two processes cycle carbon directly between the atmosphere and biosphere?a. Combustion and cellular respirationb. Photosynthesis and cellular respirationc. Chemosynthesis and decompositiond. Decomposition and combustion Use the fraction model to multiply: three multiplied by five sevenths. Leave your answer as an improper fraction. (1 point)three fraction models, each model is partitioned into seven equal parts, with five parts shaded in each modeleight seventhseight tenthsfifteen twenty onesfifteen sevenths