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What are the genotypes of the F1 parent plants?
Genotype of F1 parent plant 1:
Genotype of F1 parent plant 2:

The endoplasmic reticulum is one of the structures that will be found in eukaryotic cells but not in the cells of bacteria.

What is a eukaryotic cell?

Every creature or cell with an identifiable nucleus. The nucleus of a eukaryotic cell, which houses the well-defined chromosomes (bodies holding the genetic material), is surrounded by a nuclear membrane.

Large and sophisticated creatures are made up of eukaryotic cells, which have a nucleus surrounded by the nuclear membrane. Eukaryotic cells are found in fungi, plants, mammals, and protozoa. They are categorized as belonging to the Eukaryota kingdom.

They can sustain diverse conditions within a single cell, enabling them to perform numerous metabolic processes. They are able to grow several times larger than prokaryotic cells because to this.

Hence it is the Endoplasmic reticulum that is not present in bacteria.

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Retrovirus has capability to synthesize sized single DNA from RNA template by the help of reverse transcriptase enzyme, that's why it is called retrovirus.

First, Capsid is broken down and released. Second, released viral RNA and ready to work as a temple for single strand DNA synthesis, these DNA enter within the host. Third, single strand DNA is integrated into the host chromosome. Fourth, viral m-RNA is transcribed from the Retrovirus DNA by using host machinery, along with this third step, reverse transcriptase enzymes synthesize second strand from DNA copy and virus store these genetic material as a viral genome.

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Answer:

Eagle: Loves authority & power.

Peacock: Is the crowd-pleaser.

Owl: The 'numbers' guy (or girl)

Dove: The nurturer & helper.

Explanation:

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Answer: transciped

Explanation: In order for a cell to manufacture these proteins, specific genes within its DNA must first be transcribed into molecules of mRNA; then, these transcripts must be translated into chains of amino acids, which later folded into fully functional proteins.

Answer:

Answer down below!

Explanation:

They need to be transcribed before they can become proteins!

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At high latitudes, the polar cell is influenced by a high-pressure system at the poles and easterly winds.

The Polar cells, which extend between 60 and 70 degrees north and south to the poles, are the smallest and weakest cells. At the surface of these cells, air dips over the highest latitudes and flows outwards toward the lower latitudes.

The polar cell is formed when a portion of the air rising near 60° latitude diverges at great altitude toward the poles. The Hadley cell's high-level air is collided with at 30° latitude while the remainder travels toward the equator.

The surface winds of the Ferrel cell feed warm, moist air from the tropics into the northern hemisphere. The Polar cell then encounters this as it moves south and is chilly and dry.

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The statement "crossing over is the only mechanism that creates genetic variation by creating hybrid chromosomes with new combinations of alleles" is definitely true.

Crossing over may be defined as a type of process through which the exchange of genetic material occurs between non-sister chromatids of homologous chromosomes. This process mostly occurs in the Pachytene stage of meiosis I.

According to the question, independent assortment and random fertilization significantly construct genetic variations with the help of chromosome shuffling. There must be an exchange of genetic segments.

Therefore, the statement "crossing over is the only mechanism that creates genetic variation by creating hybrid chromosomes with new combinations of alleles" is definitely true.

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Alveoli work with the villi to exchange oxygen and carbon dioxide .

Alveoli are the smallest structure in the respiratory system. They are organized in bunches all through the lungs at the finishes of the parts of your respiratory tree, which is the tree-like design of paths that carries air into the lungs.

The walls of the alveoli are extremely slender. This lets oxygen and CO2 pass effectively between the alveoli and vessels, which are tiny veins.

Oxygen can pass from the alveoli to the vessels on the grounds that the centralization of oxygen is lower in the vessels than in alveoli. Essentially, CO2 moves the alternate way in light of the fact that the centralization of carbon dioxide is lower in the alveoli than in the vessels.

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Answer:

C

Explanation:

1.  nucleolus

2. ribosomes

3. mitochondria

4. lysosome

5. cell membrane

6. vesicle

7. cytoplasm

8. smooth ER

9. Golgi apparatus

10. cytoskeleton

11. nucleus

12. rough ER

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Answer:

(C.) using solar panels for heat

Explanation:

k 12 quiz

Having a large yard is an example of something that can promote sustainable development. Thus, the correct option is D.

Sustainable development is an organizing principle for the meeting of the human development goals while it is also sustaining the ability of the natural systems to provide the natural resources and ecosystem services on which the human economies and society depends as a whole.

A yard is an open place which has fencing around it, with the grasses and small shrubs around as well. Having a large yard will not only meet the requirements of the human beings however it also be in favor of the environment as there will be no construction over that area due to the yard.

Therefore, the correct option is D.

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Answer:

B. A nitrogenous base, a phosphate group, and a pentose sugar

There are such high levels of speciation and extinction because conditions on the Earth keep on changing.

For a species to survive on the Earth, the conditions provided shall be suitable for it to exist. However, most of the times in an ecosystem, the conditions change when there is more competition for food and survival. Also, a rapid change in the ecosystem can cause a species to become extinct due to unfavorable conditions.

A species might have to move to another area if the conditions become unfavorable to survive. There might already be competing in the new area and hence the new species might not be able to survive.

Hence, the changing conditions of an ecosystem are the main reason for the high rates of speciation and extinction that constantly occur in the history of life on earth.

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Menisci (articular discs) are the: (1) cavities lined with cartilage wedges of fibrocartilage that partially or completely divide the synovial cavity.

Cartilage is the connective tissue. It acts as a shock absorber therefore protects the bones and muscles. It is a very strong yet soft and flexible tissue. The cells that make up the cartilage are called chondrocytes. There are three types of cartilage. These are: hyaline, fibro and elastic.

Synovial cavity is the space between two bones. It is filled with a fluid called synovial fluid. Almost all the joints contain synovial cavity. The function of the cavity and fluid is to lubricate the ends of the bone and therefore protect them any wear or tear.

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The correct answer is option B: b-lymphocytes

b-lymphocytes are associated with secreting chemicals that kill invading organisms and infected cells.

B-lymphocytes are also called effectors as they kick out the invaders from the body. These are also known as protective cells, plasma cells, and effector B-cells.

In general, B-lymphocyte cells release chemicals called antibodies which are used as protective shields against harmful invading bacteria.

Their defensive mechanism is based on attachment or binding to the invaders i.e. bacteria and viruses and killing them and eliminating them instantly from the body before they cause any harm.

Moreover, these cells also prevent the proliferation of harmful microbes inside the body.

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c is the correct answer

hope it helps

The answer to this fill in blanks is latissimus dorsi. The latissimus dorsi is the posterior axial muscle that crosses the glenohumeral joint.

The latissimus dorsi muscle is a broad, flat muscle that dominates the lower posterior thorax. The primary function of the muscle is in the upper extremity, but it is also considered a respiratory accessory muscle.

The latissimus dorsi is most activated during pulling and throwing movements. The most common causes of shoulder blade pain are overuse, poor technique, or failing to warm up before exercising.

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Answer:

Explanation:The posterior axial muscle that crosses the glenohumeral joint is the Latissimus Dorsi

The latissimus dorsi muscle may be a broad, flat muscle that occupies the bulk of the lower posterior thorax. The muscle's primary function is within the upper extremity but is also considered to be a respiratory accessory muscle. Due to this muscle's broad attachment on the spinous processes, ongoing research is watching what, if any, role the muscle plays in trunk movement.

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Complex wind patterns that change direction and vary the way sand is piled upon the dune are what cause these dunes to grow.

By shifting the wind's direction, the sand accumulates on several sides of the dune and is prevented from achieving the angle of repose, which prevents the dune from collapsing.

The bigger sand grains will be dumped in front of any obstructions on the shore and driven up them, while smaller grains of sand are frequently dropped behind them. Sand ridges begin to grow as a result of this process and can eventually turn into a sand dune.

The wind energy environment regulates dune field patterns. The geographical distribution of continental rivers and the accessibility of sand are further critical elements influencing dune formation and evolution.

Problems such as the disappearance of the flora that covers the surface of dunes can be brought on by house and industrial growth, as well as by the use of mechanical instruments and garbage dumping on beaches.

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In diffusion substance move from a region of high concentration to a region in low concentration.

Diffusion is an essential process in cells. They need glucose and oxygen for respiration, which move into them by diffusion. Respiration produces carbon dioxide and water which leave cells by diffusion.

Diffusion is the process of movement of molecules under a concentration gradient.  Diffusion helps in the movement of substances in and out of the cells.

Osmosis is a type of simple diffusion in which water molecules diffuse through a selectively permeable membrane from areas of high water concentration to areas of lower water concentration.

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Answer: The combination of all of your variants make up the 0.1% difference in your DNA—the part of your DNA that makes you unique from everyone else—and helps give you a unique sequence.

Explanation: The gene copies are different when the nucleotide sequence differs in at least one site. For instance, a gene copy contains the A nucleotide in a specific location, while the other copy has the G nucleotide in the same place. We say that this person has two different alleles in the same location.

People differ in so many ways; in their genetic make-up, sociocultural backgrounds, attitudes, the way they speak, listen, learn, behave, act and react.

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Monocytes(white blood cells) are the largest cells of the blood (averaging 15–18 μm in diameter), and they make up about 7 percent of the leukocytes.

Embryos show a reduction and loss of body axis structures when Xenopus laevis eggs are exposed to 1.0 degrees C for 4 minutes or 8000 psi for 5 minutes during a crucial phase before initial cleavage. The deficits develop in a dose-dependent craniocaudal progression.

In the extreme, radial symmetric, completely axis-deficient embryos are produced. The time between pronuclear contact and mitosis, which is roughly when the gray crescent forms, is when the maximum sensitivity to cold and pressure occurs. This time spans from around 0.4 to 0.8. These findings are interpreted as follows: The Xenopus laevis egg contents are reorganized during the 0.4–0.8 phase in a way that is crucial for the development of the embryonic body axis later on.

Cytoskeletal components are involved in the reorganization process; some of these components are D2O-protected and susceptible to UV, pressure, and cold. It is possible to understand rescue by oblique orientation as the outcome of a gravity-driven rearrangement of the egg's contents, replacing the impaired normal mechanochemical reaction in treated Xenopus laevis eggs.

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The plant will never be able to flower.

What are annual Arabidopsis plants?

A plant is said to be annual if it completes all stages of its life cycle, from germination to the production of seeds, during a single growing season and then perishes when that season is over.

During the process of flower growth, from the vegetative to the reproductive phase, a number of genes, including SOC1, LFY, FLC, and others, play highly important roles. Which FLC gene is the repressor gene of SOC1 that result in the flowering of the plant, but after the cold treatment an additional gene called COLDAIR RNA in the process of vernalization represses FLC and causes flowering to occur. However, if COLDAIR RNA is unstable, it would be nonfunctional and the plant would never be able to flower because of this.

Hence, the plant will never be able to flower.

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Heat is also produced as a result of this reaction.

The process by which glucose is broken down to provide energy is known as glycolysis. It generates two pyruvate molecules, ATP, NADH, and water. There is no need for oxygen throughout the process, which occurs in the cytoplasm of a cell. Both aerobic and anaerobic creatures experience it.

Four ATP molecules (net = 2) are produced during glycolysis in addition to the pyruvic acid that is created.

However, glycolysis releases energy in the form of heat, much like all other catabolic reactions that involve the breakdown of big molecules.

Therefore, heat is also produced as a result of glycolytic reaction (cellular respiration).

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The type of inheritance pattern that is best described when indicating a recessive allele that causes a human genetic disorder called phenylketonuria associated with different genes which encode for the same trait is Pleiotropy (Option d).

Pleiotropy is a genetic phenomenon in which one gene alters the phenotypic expression of more than one simple trait, thereby ending the same product for different features in an organism.

Therefore, we can conclude that Pleiotropy is a genetic phenomenon that occurs when the allele of a gene encodes a product that affects more than one phenotypic trait.

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Answer:

Spongy bone

Its the soft, inner layer of your bones. It's full of holes where bone marrow can fit.

The chemical equation for the reaction when a water molecule is added to an atp molecule to break down atp into adp and a phosphate group is H2O + ATP -> ADP + Pi

Adenosine triphosphate (ATP) is a molecule that can store chemical energy in high-energy phosphoanhydride bonds. These bonds can be split to release chemical energy, for example in muscles. This process is known as ATP hydrolysis. The end result is an inorganic phosphate and adenosine diphosphate (ADP) (Pi). Another inorganic phosphate, energy, and adenosine monophosphate (AMP) can all be produced from ADP by additional hydrolysis (Pi). The final step in converting food- or sun-derived energy into useful activities like muscle contraction, creating electrochemical gradients across membranes, and biosynthetic processes required for maintaining life, is ATP hydrolysis.

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When cells are not given glucose and oxygen, necrosis, or cell death, takes place. The fact that cells can endure hypoxia is noteworthy. The intrinsic apoptotic pathway is activated by acute oxygen deprivation, and this results in a lowering of the mitochondrial membrane's potential, according to early study.

When oxygenated blood is not given to cells, cellular membranes break down, causing anaerobic metabolism and a loss of adenosine triphosphate (ATP).

Since oxygen is needed for algae to break down, fish and other aquatic species have much less DO available to them, which has an adverse effect on their health and frequently results in fish death. Low DO in water is also brought on by the decomposition of aquatic plants and phytoplankton that are submerged.

Low oxygen levels in your bodily tissues are known as hypoxia.You may be at risk for hypoxia if you have one of several chronic heart and lung diseases. Hypoxia poses a serious risk to life.

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A group of related parts with specific roles that work together converts the message to a signal and send it to a receiver.

The correct option is D.

The communication system describes an information conversation between different sites. Data is sent and received in communication. The three major parts of communication are the data transmitter, the channel or medium of communication, and the data receiver.

The telephone, the telegraph, the cell phone, the Edison telegraph, the computer, and the TV cable are the key examples of communication systems. This system's sources can be classified as either electric or non-electric. These are the places where a message or input signal comes from.

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The complete question is -

A system is a group of related parts with specific roles that work together to achieve an observed result. The flow chart below shows a communication system. In this communication system, what does the transmitter do?

Answer:

Here is answer

Explanation:

A root hair cell has a large surface area.

These features maximise absorption of water into the root from the soil.

The leaf cell has chloroplast because of these features the parts of cell can photosynthesis.

Answer:

I think we it has a hair I don't know

In the United States and many other countries across the world, heartworm illness in pets is a serious and potentially fatal condition.

Pets are susceptible to heartworm illness, which is caused by foot-long worms (heartworms) that live locally in the heart, lungs, and blood vessels. These worms injure other bodily organs as well as causing heart failure and serious lung illness.

Other mammal species, like wolves, coyotes, foxes, sea lions, and, in very rare circumstances, humans, can also be home to heartworms. Dogs, cats, and ferrets are all effected by heartworm illness.

Due to their frequent proximity to cities, wild animals like foxes and coyotes are important disease vectors.

Therefore, In the United States and many other countries across the world, heartworm illness in pets is a serious and potentially fatal condition.

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