How did the sunflower species helianthus anomalus originate?.

Answer:

the raven

Explanation:

octopus - intelligent but very antisocial with a short life span, meaning they most likely will not work with other octopuses to improve while also living in the ocean making it harder to build. (but could probably evolve to walk on land)

dolphin - smart but does not have thumbs to make tools and lives in the ocean meaning they have a disadvantage.

raven - intelligent, works with other ravens and sometimes even wolves, and has shown to make tools.

Answer:

The raven because it's ability to craft tools, social life involving hunting groups, intelligence, and wide variety of sounds (allowing potential language) give it the potential to evolve very well.  

Explanation:

The increasingly forceful labor contractions during childbirth are an example of positive feedback.

Positive feedback is a physiological mechanism in which a stimulus or change leads to a response that amplifies or reinforces the initial change. In the case of labor contractions, the process begins with the release of oxytocin, a hormone that stimulates the uterine muscles to contract. As the contractions become stronger and more frequent, they exert pressure on the cervix, causing it to stretch and stimulate the release of more oxytocin. This cycle continues, with each contraction triggering the release of more oxytocin, leading to even stronger contractions. This positive feedback loop continues until the baby is born.

The purpose of positive feedback in childbirth is to ensure effective cervical dilation and delivery of the baby. As the contractions intensify, they help push the baby downward and exert pressure on the cervix, facilitating its gradual opening. This positive feedback mechanism allows for the progression of labor and ultimately leads to the successful delivery of the baby.

Positive feedback is a crucial mechanism in various physiological processes, such as blood clotting, lactation, and the immune response. It plays a significant role in amplifying and reinforcing certain physiological changes to achieve a specific outcome. In the case of childbirth, positive feedback ensures the progression of labor until the baby is delivered. Understanding these feedback mechanisms is essential for comprehending the intricacies of various physiological processes.

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Answer:

Methionine (Met)- Valine (Val)- Proline (Pro)- Serine (Ser)- STOP

Explanation:

The process whereby a sequence of DNA is used to produce an amino acid sequence (protein) is termed GENE EXPRESSION. The gene expression process involves two major stages namely transcription and translation.

- Transcription forms a mRNA sequence from a DNA sequence using complementary base pairing i.e. A-U, G-C etc. In this DNA sequence; TTA- TAC-CAC-GGA-TCG-ACT, the following mRNA sequence will be produced; AAU- AUG- GUG- CCU- AGC- UGA

- Translation is the process whereby amino acid sequence is produced using mRNA transcript template. Using genetic code and commencing from the start codon (AUG), the amino acid sequence is as follows:

Methionine (Met)- Valine (Val)- Proline (Pro)- Serine (Ser)- STOP

Answer:

INTERPHASE

Explanation:

The cell cycle refers to the series of event from DNA replication to actual division of a cell. Mitosis and meiosis are the two types of cell division, which is made up of two stages namely: interphase and the M-phase.

The interphase is also called resting stage because the cell is not undergoing any division. The interphase is further divided into G1, S and G2 phases. In these stages, the events that occurs include; protein synthesis, cell growth, DNA replication, and basic cell functions.

Answer:

Transpiration

Explanation:

Answer:

B cells are at the centre of the adaptive humoral immune system and are responsible for mediating the production of antigen-specific immunoglobulin (Ig) directed against invasive pathogens (typically known as antibodies).

Explanation:

T cells are a part of the immune system that focuses on specific foreign particles. Rather than generically attack any antigens, T cells circulate until they encounter their specific antigen. As such, T cells play a critical part in immunity to foreign substances.

Answer:

T cells are responsible for cell-mediated immunity.

B cells are responsible for humoral immunity or antibody production

Explanation:

i got it right

By encouraging the same motion or by minimizing unwanted or unneeded motions that could take place while the prime mover contracts, synergists support agonists.

Fixator: To enable the agonist work as efficiently as possible, the force applied in a motion is the muscle(s) which stabilizes the source of the agonists and the bone that the source spans (moves across). Synergist. The biceps muscle and brachialis work together to produce a biceps curl, while the brachialis serves as the agonist. while the prime mover contracts, synergists support agonists.The latter uses the first two to help stabilize the elbow joint while doing the bicep curl exercise. Skeletal muscles only contract in one plane. They always arrive in pairs as a result. Whenever one muscle in a couple contracts, for example to bend a joint, its opposite muscle contracts and pulls.

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Appetite is controlled by the Satiety center in the Hypothalamus of the brain.

— WatanabeHaruto

The genotype of the mother is XX, while that of the father is XY. If a non-disjunction occurred in an individual with the genotype XXX, it would occur in her mother since only from her mother could she acquire two Xs, but from her father, a non-disjunction would result in a XXY.

This non-disjunction occurred during meiosis I, when two copies of the same chromosome are transferred to separate cells. During this phase, the separation of these two chromosomes did not occur since they were both Xs from the mother brought together to the new haploid cell.

The non-disjunction on meiosis II simply indicates that two chromatids from a chromosome did not split and does not result in copies.

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Answer:

the bottom one, the one with the bars far away from each other.

Explanation:

Answer:

It is the second choice at the top

Explanation:

I just did this

Therefore, the balanced equation is 4C2H5F + 13O2 -> 8CO2 + 10H2O + 2F2.

We need to determine the appropriate coefficient for the O2 molecule.

To balance the equation:

4C2H5F + __O2 -> 8CO2 + 10H2O + 2F2

We need to determine the appropriate coefficient for the O2 molecule.

Let's start by balancing the carbon (C) atoms. There are 4 C atoms on the left side (4C2H5F) and 8 C atoms on the right side (8CO2). To balance the C atoms, we need a coefficient of 2 in front of the C2H5F compound:

4C2H5F + __O2 -> 8CO2 + 10H2O + 2F2

Next, let's balance the hydrogen (H) atoms. There are 10 H atoms on the right side (10H2O). To balance the H atoms, we need a coefficient of 5 in front of the H2O compound:

4C2H5F + __O2 -> 8CO2 + 10H2O + 2F2

Now, let's balance the fluorine (F) atoms. There are 4 F atoms on the left side (4C2H5F) and 2 F atoms on the right side (2F2). To balance the F atoms, we need a coefficient of 2 in front of the C2H5F compound:

4C2H5F + __O2 -> 8CO2 + 10H2O + 2F2

Finally, let's balance the oxygen (O) atoms. There are 16 O atoms on the right side (8CO2 + 10H2O). To balance the O atoms, we need a coefficient of 13 in front of the O2 molecule:

4C2H5F + 13O2 -> 8CO2 + 10H2O + 2F2

Therefore, the balanced equation is:

4C2H5F + 13O2 -> 8CO2 + 10H2O + 2F2

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Answer:

Here is your answer.. hope it helps u have a great day ahead

the answer is true I

Answer: The volume of the cytoplasm increases

During interphase, the cell grows and carries out normal metabolic processes while also replicating its DNA in preparation for cell division.

During this phase, organelles such as the mitochondria and endoplasmic reticulum also replicate in order to ensure that the daughter cells have enough organelles to function properly. Additionally, the cell may also produce more proteins and other cellular components during interphase.

Overall, interphase is a crucial phase in the cell cycle that prepares the cell for division and ensures that the daughter cells have the necessary components to function.

A company borrows $50,000 by signing a $50,000, 8% note that requires six equal payments of $10,816 .

For a predetermined amount of time, in this case, six years, an annuity is paid out in equal installments.

Divide the PV by the discount factor because equal payments are made annually and you are given the annuity's present value of $50,000 and a discount factor of 4.6229. Equal payments ought to be worth the same as $10816;

= 50,000 x 4.6229 = 10815.7217 Then, round the result to the nearest dollar;

It is $10,816 when rounded to the nearest whole number.

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(1) The two factors are pollution and coastal development. (2) The three changes in Tampa Bay that helped restore seagrass habitats are stormwater management, wastewater treatment, and shoreline restoration. (3) Seagrass coverage in Tampa Bay has improved over the years.  

Two factors that contributed to this decline are pollution and coastal development.

Three changes that have helped to restore seagrass habitats in Tampa Bay are:-

These changes have helped to improve the water quality, reduce nutrient pollution, and promote seagrass growth.

Seagrass coverage in Tampa Bay has improved over the years. According to Tampa Bay Watch, the total acreage of seagrass in Tampa Bay has increased by 31% since 1982. In 2020, the total area of seagrass in Tampa Bay was 40,998 acres.

However, there are still some areas in Tampa Bay where seagrass coverage is low. Efforts are being made to improve seagrass coverage in these areas.

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Answer:

blah blh lbha

Explanation:

Answer:

Seamounts form by submarine volcanism. After repeated eruptions, the volcano builds upwards into shallower water. If a seamount eventually breaches the water's surface, it becomes an island. Wave action can then erode the exposed rock, and the peak may be flattened or leveled off.

hope this helps :)

The answer is all above.

Answer:

A human heart is roughly the size of a large fist.

Explanation:

but the size varies according to an individual's age, health and size. The heart weighs 7 to 15 ounces.

This is because the plasmid cannot replicate without the oriC, which means it will not be passed on to the daughter cells during cell division. Consequently, the E. coli cells will not acquire ampicillin resistance, and they will not be able to grow in the presence of the antibiotic.

This is a fascinating experiment, and if we transferred a plasmid containing an ampicillin resistance gene but with oric removed into E. coli, we would expect to see a few different outcomes.

Overall, if we transferred a plasmid containing an ampicillin resistance gene but with oric removed into E. coli, we would expect to see some cells that have taken up the plasmid and become resistant to ampicillin. However, the efficiency and stability of plasmid uptake and expression could vary, and the absence of oric would likely limit the overall number of plasmid copies in each bacterial cell.

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Answer:

The answer lies with carbon's unique properties. Carbon has an exceptional ability to bind with a wide variety of other elements. Carbon makes four electrons available to form covalent chemical bonds, allowing carbon atoms to form multiple stable bonds with other small atoms, including hydrogen, oxygen, and nitrogen.

Explanation:

Hope it helps

The pyramidal decussation, where the descending motor fibers in the corticospinal tracts cross, is found in the medulla oblongata of the brainstem.

The medulla oblongata is located between the pons and the spinal cord at the base of the brainstem. It is a critical region of the brainstem that contains many vital centres for regulating autonomic functions like heart rate, breathing, and blood pressure, as well as motor functions like coordination and b. The pyramidal decussation is an important anatomical landmark for the corticospinal tracts, which are important pathways for voluntary motor control of the b and trunk.

The corticospinal tracts are a network of nerve fibres that originate in the brain's motor cortex and travel through the brainstem and spinal cord to control voluntary movement of the limbs and trunk. The corticospinal tracts are divided into two major pathways: the lateral and ventral corticospinal tracts.

Corticospinal tract damage, whether caused by injury or disease, can result in a variety of motor deficits, including muscle weakness, spasticity, and paralysis. The specific deficits that occur will be determined by the location and extent of the damage.

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Answer:

burning fossil fuels and decomposition of dead organisms

Explanation:

A significant amount of the carbon in the biosphere is returned to the carbon cycle through decomposition by fungi and bacteria. Much of what is not decomposed becomes fossil fuels. When humans burn fossil fuels for energy, carbon is returned to the atmosphere.

The process that returns carbon from the vast reservoir of animal bodies to the active carbon cycle is called decomposition, which is present in Option A, as when an animal dies, its body is broken down by decomposers, such as bacteria and fungi.

The decomposition process is essential for the cycling of carbon in the environment. When an animal dies, the organic molecules that make up its body become available to decomposers. These decomposers use enzymes to break down the complex organic molecules into simpler compounds, such as sugars, amino acids, and fatty acids.

Hence, the process that returns carbon from the vast reservoir of animal bodies to the active carbon cycle is called decomposition, which is present in Option A.

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complete question is below

Because the bodies of animals contain carbon molecules, the animal kingdom stores huge amounts of carbon. Which of the following processes returns carbon from this vast reservoir to the active carbon cycle?

A)decomposition

B) nitrogen fixation

Answer:

this is the answer hope it helps

be

The following is part of the neuroendocrine regulation of digestion: All the above.

Neuroendocrine regulation refers to the complex interplay between the nervous system and the endocrine system in maintaining homeostasis and coordinating various physiological processes in the body.

The endocrine system consists of glands that produce and release hormones into the bloodstream. These hormones act as chemical messengers and regulate the activity of target cells or organs throughout the body

The neuroendocrine regulation of digestion is the process by which the digestive system is regulated by hormones, the nervous system, and various other signaling molecules. When you eat food, these signaling molecules cause the digestive system to break it down into smaller pieces and absorb it into the bloodstream. They also regulate the rate at which food is broken down and absorbed, as well as how much food is stored in the digestive tract.

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Answer:

B: The Grasshopper population will decrease

Explanation:

Make me brainliest please

The Grasshopper population will decrease if population of grasshopper dies off.

population ecology and making predictions about population dynamics would be sufficiently challenging based only on the complicating qualities that living entities bring to the problem (variation and history), but an ecologist must also taken into consideration the particularities of a given system.

Grasshoppers cause serious economic damage to both crops and rangeland, although the greatest concern has been with respect to losses of livestock forage in the latter system (Hewitt and Onsager 1983, Joern and Gaines 1990).

What is lacking, however, is any substantive advance with regard to state and federal forecasting of rangeland grasshopper population dynamics that would allow limited resources to be acquired, allocated, and applied in an optimal manner.

Therefore, The Grasshopper population will decrease if population of grasshopper dies off.

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Answer:

Explanation:

Natural selection is an evolutive force that can act favoring an allele or against it, according to how it affects the fitness of individuals. Natural selection selects beneficial alleles and increases their frequency in the population.

When many organisms in a population sharing the same trait die, it is because they did not have good fitness, so they were not adapted to the environment and its pressures. The alleles coding for that trait were not good for the fitness of the animals, so they do not get to survive.

These individuals die before reproducing, so they could not transfer their genetic charge to the following generation. Eventually, the alleles coding for the trait will decrease in the population, probably near zero. Natural selection is acting against this phenotype. Other alleles will be beneficiated, and their frequency in the population will increase.

This change in alleles frequency is what we call adaptation.

Natural selection results in adaptation, which means the increase of the aptitude phenotype. Aptitude is the contribution of each genotype to the next generation.

In many cases, adaptations can be correlated to environmental factors or selective pressures applied by other organisms or habitats.

Let us remember that a mutation is a change or alteration in DNI sequences that introduce new variants. Many of these are eliminated, but some of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection.  

So, in the exposed example, we are focussing on rabbits populations.  

• The selective pressure or modeling environmental factor is predation by the introduced hawk.

• The rabbits´ response to predation is the survival of only those that carry mutations ⇒ tan or brown fur

• Natural selection benefits these mutations.  

• Tan or brown rabbits survive and increase their fitness.

Answer:

Gene transfer refers to the movement of genetic information between organisms. Vertical gene transfer passes genes from parent to offspring.

Lateral gene transfer passes genes to other cells in the same generation. It occurs in bacteria by transformation, transduction, and conjugation.

Bacterial transformation was discovered in 1928 by Griffith, who showed that a mixed culture of live rough and heat-killed smooth pneumococci could produce live smooth pneumococci capable of killing mice. (Black)

How could dead bacteria give genes to the live bacteria?

The dead one left DNA behind which was picked up by the alive bacteria, changing it so that it could kill.