which of the following identifies this phenomenon and explains how it is formed

Answer:

Gezzel

Explanation:

I know

Sperm need to undergo a process called capacitation before they are able to fertilize an egg. Capacitation is a complex series of biochemical changes that occur within the female reproductive tract that prepares the sperm for fertilization.

During this process, the sperm gain the ability to swim more vigorously, which helps them to reach and penetrate the egg. Additionally, capacitation causes changes in the sperm's outer membrane, allowing it to bind to and penetrate the egg's protective layer.

In order for capacitation to occur, the sperm must be exposed to the appropriate chemical environment within the female reproductive tract. This includes the presence of specific hormones and enzymes that stimulate the capacitation process. Once capacitated, sperm have a limited amount of time to fertilize an egg before they begin to lose their fertilizing potential.

In summary, while sperm can survive in the female reproductive tract for several days, they are unable to fertilize an egg until they have undergone the process of capacitation.

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The main organs of the urinary system are the kidneys, renal pelvis, ureters, bladder and urethra.

The largest problem with implementing CRISPR based technologies for therapy and a major headache for researchers using CRISPR for making animal models for human diseases is B) off-target editing events at loci with imperfect sequence matching.

While the other options listed (A. Technique is very laborious, C. Sequence of RNA guides is very expensive, and D. Require a transfer with potentially oncogenic viral vectors) are also concerns, the risk of off-target effects is considered the most significant challenge in using CRISPR for therapeutic and research purposes.

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The mouse Xist gene produces a 15 kb non-coding RNA transcript specific to the inactive X chromosome. It plays a crucial role in X chromosome inactivation, coating the nucleus and contributing to gene silencing without encoding a protein.

The product of the mouse Xist gene is a 15 kb long transcript that is specific to the inactive X chromosome (Xi). This transcript plays a critical role in X chromosome inactivation (XCI), a process that occurs during early development to silence one of the two X chromosomes in female mammals.

The Xist transcript is a non-coding RNA, meaning it does not encode a protein. It lacks a conserved open reading frame (ORF), suggesting that it does not produce a functional protein product. Instead, Xist functions as an RNA molecule involved in the regulation of gene expression.

Upon transcription, the Xist RNA localizes to the nucleus, where it coats the future inactive X chromosome. This coating leads to the recruitment of various protein complexes and epigenetic modifications, ultimately resulting in the silencing of genes on the Xi. Xist is thought to contribute to the establishment and maintenance of the inactive state by mediating long-range chromatin interactions and influencing the organization of the Xi.

Understanding the molecular mechanisms of Xist and XCI is important for unraveling the complexities of gene regulation and the development of sex-specific traits in mammals.

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Answer:

The sun

Explanation:

The sun provides the light energy that plants need in order to produce glucose the animals gain after eating the plants or the animals that ate the plants.

The initial and ultimate source of the energy in all types of food webs and food chains is the Sun.

The Sun is the major source of energy for living organisms and the ecosystems of which they are a part on the Earth. Producers are the organisms of the food chain which produce energy such as plants, algae, and cyanobacteria. These organisms use the energy from sunlight to make organic matter from that of carbon dioxide and water molecules. This establishes the beginning of energy flow through almost all the food webs.

The light which is coming from the sun allows the green plants that is the producers to manufacture chemical energy which fuels all the cellular functions. In turn once the plants are eaten, this chemical energy and nutrients are transferred to the consumers and to other higher organisms.

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Answer:

Due to difference in their presence in the body.

Explanation:

Errors that occur during meiosis are present in all cells of the body because meiosis cell division occurs in the sex cells of an organisms so that the errors are effects all the cells of that organism, while on the other hand, errors that occur during mitosis may occur in only a small number of cells because mitosis cell division occurs in the somatic cells so the errors are present in some body cells so we can conclude this errors in meiosis affect all cells whereas errors in mitosis affect less number of cells.

Answer:

must be tested and verified by observations.

Explanation:

Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.

A scientific method can be defined as a research method that typically involves the use of experimental and mathematical techniques which comprises of a series of steps such as systematic observation, measurement, and analysis to formulate, test and modify a hypothesis.

In the scientific method, scientific theories must be tested and verified by observations.

This ultimately implies that, all scientific theories must be testable, consistently verifiable and supported by observations or experiments.

An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).

This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.

As a result of natural selection, the dark-coloured moths were favoured over the light-coloured moths therefore the light-coloured moths died out and didn't have the chance to reproduce while the dark-coloured moths thrived, allowing them to pass on their genes to the next generation of peppered moths.

The correct answer is the first option.

Answer: A

Explanation:

UAC = Tyr

UCU = Ser

ACC = Thr

So the polypeptide chain corresponds to A

Answer:

Wetlands provide many societal benefits: food and habitat for fish and wildlife, including threatened and endangered species; water quality improvement; flood storage; shoreline erosion control; economically beneficial natural products for human use; and opportunities for recreation, education, and research.

Answer:

It can put harmful substances into the atmosphere and boost climate change.

Explanation:

brainliest pls

Answer:

plants and animals habitats will be ruined and or killed off by this harmful practice

Answer:

i dont know i have the same question

Explanation:

The statement indicates towards the investigation that is either supported or not supported by the type of any investigation is hypothesis. The statement refers to a particular type of statement that is not necessarily based on the type of proofs.

These are proved by certain types of experimental proofs and the type of controlled experiments that are done for the proof of such statements and articles.

A hypothesis in a scientific context  is the type of the  testable statement about  the relationship between the  two or more variables or the  proposed kind of  explanation for just  some kind of  observed phenomenon which necessarily does or does not need any type of scientific proof.

Hypothesis Daily exposure towards sun leads to the  increased levels of  the happiness. In this type of  example, the independent variable is  the exposure to sun that is  assumed cause.  The type of  dependent variable is level of happiness which is  assumed effect.

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Answer:

Mutualism is where both organisms benefit, commensalism is where one benefits but the other organism isn’t harmed, and lastly, parasitism is where one organism benefits and the other is harmed. The various species found within a single ecosystem can relate to each other in a variety of ways. The terms mutualism, commensalism, parasitism and symbiosis all refer to the various ways that species within an ecosystem can interact with one another.

Explanation:

Answer:

Adenosine triphosphate

Explanation:

Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level.

Answer:

For example, when a pot of water is placed on the stove to boil, conduction heat warms up the pot, which then heats the water molecules inside. As these molecules heat, convection causes them to move away from the interior of the pot as they are replaced by cooler molecules.

Explanation:

The given statement is TRUE. A foundation for the conservation and protection of threatened species and endangered species, as well as their habitats, both domestically and overseas, is provided under the Endangered Species Act of 1973.

In accordance with ESA, critical habitat must be identified and its removal is forbidden. The Endangered Species Act establishes protections for fish, mammals, and plants that are categorized as threatened or endangered. It allows for the addition and deletion of species from the list of threatened and endangered species as well as the creation and implementation of recovery plans. A threatened species is one that "is likely to become an endangered species within the foreseeable future throughout all or a considerable portion of its range," according to the ESA.

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A possible hypothesis here is; "If rainbow trout are eating all the macroinvertebrates, then keeping rainbow trout out of new river habitats will allow native species to recover."

A hypothesis is a statement that is tentatively put forward to explain an observation. Usually, a hypothesis is an if .... then statement. This is one of the first things that we must look out for when considering each of the statements.

Since we have observed that rainbow trout eating all the macroinvertebrates in streams and starving out other fish species, it follows that  keeping rainbow trout out of new river habitats will allow native species to recover."

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Answer:

All vertebraes fossilize similarly

Explanation:

Because they evolve different types of digestive system that helps in the digestion of different foods they eat

Answer:

How can someonebe political

The recommended range of weight gain during pregnancy is determined by the pre-pregnancy Body Mass Index (BMI). The range varies depending on whether the woman is underweight, of normal weight, overweight, or obese when she becomes pregnant.

The Institute of Medicine's (IOM) recommendations for weight gain during pregnancy according to the pre-pregnancy BMI are:

Therefore, the weight gain that falls within the recommended range for a woman during pregnancy is determined by her pre-pregnancy BMI.

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Answer:

Meiosis is a specific type of cell division that occurs in reproductive cells, resulting in the production of gametes (sperm and eggs) with half the number of chromosomes as the parent cell.

Answer:

B

Explanation:

The theory of evolution states that all the species evolve and change over time, the new species arose from the pre-existing ones and all these species have a common ancestor.

The theory of evolution was put proposed by Charles Darwin. He said that the changes accumulate and are visible into an individual over very long period of times. Darwin's theory was more inclined towards natural selection.

Ancestor is defined as the individual or the species from whom further progenies were formed. Ancestor is the common point for various different species that give us the idea about the evolution must have occurred such that various different species got formed.

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The false statement about vesicle budding from the Golgi is: Clathrin molecules act at the cytosolic surface of the Golgi membrane. The correct option is d.

Clathrin molecules do not act directly at the cytosolic surface of the Golgi membrane during vesicle budding. Clathrin proteins are involved in the formation of coated pits and vesicles on the cytoplasmic side of the Golgi membrane. These coated pits are lined with clathrin molecules and adaptins, which interact with each other.

The adaptins help to select specific cargo molecules for transport within the vesicles. Once the vesicle has budded off, clathrin molecules remain associated with the vesicle, forming a clathrin coat on the vesicle's outer surface. The clathrin coat is later shed, and the vesicle fuses with its target membrane for cargo delivery.

Therefore, option D is the false statement. Clathrin molecules do not act directly at the cytosolic surface of the Golgi membrane during vesicle budding but instead participate in the formation of coated pits and vesicles on the cytoplasmic side of the Golgi membrane.

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Morphology is problematic for building phylogenies of bacteria and archaea because many bacteria and archaea species have similar morphologies despite having divergent evolutionary histories.

Many bacteria and archaea species have evolved unique morphological characteristics in response to their specific ecological niches which makes it difficult to determine their evolutionary relationships based on morphology alone.

Most bacteria and archaea species are unicellular and lack complex morphological features. They vary in size, shape, and cell envelope structure. The cell envelope structure (presence or absence of a cell wall, the presence of a thick or thin cell wall, and the presence or absence of an outer membrane) is often used to group bacteria and archaea into major groups called phyla.

However, using morphology alone to determine the evolutionary relationships between bacteria and archaea is problematic. This is because many bacterial and archaeal species have evolved similar morphological characteristics despite having divergent evolutionary histories.

To overcome these problems, scientists use molecular data such as DNA sequences to build more accurate phylogenies of bacteria and archaea. DNA sequences provide a more accurate measure of evolutionary relationships because they reflect the genetic changes that have occurred over time.

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Answer:

temporal lobe - memory, understanding, language.

Explanation:

Answer: D

Explanation: