what does the narrator mean when he says that energy "is old as time itself" ?

Answer:

Urethra

Explanation:

Answer:

The ________ both transports urine outside the body during urination and transports semen to the female reproductive tract during intercourse.

Explanation:

Urethra

Answer:

its D

Explanation:

just took the test

To change a question mark to a check or blank box in regards to reproductive behavior in fish, one should consider various factors such as the type of fish, their mating habits, and breeding strategies.

For example, some fish species may exhibit monogamous behavior while others may have multiple mates or engage in group spawning. Additionally, some fish may lay eggs while others may give birth to live young.

Therefore, the decision to click on a check or blank box will depend on the specific statement being made and its accuracy in relation to the particular species of fish being discussed.

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Yes. Absolutely. Without heart, no one can live. It helps in pumping of oxygen rich blood to all body cells and tissues. It also helps in transportation of various materials like potassium, sodium, calcium etc. in our body. The main function is that it helps in excretion of wastes.

Since blood is liquid and heart pumps it, the waste materials like CO2, gets diffused and becomes impure blood. Then it is taken to lungs for purification and again reused.

So, heart actually helps us indirectly in many ways.

Hope it helps you.. pls mark brainliest if it helps you

Phases of meiosis that can result in the most variation in the four resulting daughter cells is Telophase II.

Telophase II is one of the meiotic phases that has the most potential for altering the four resultant daughter cells. Nuclear membranes develop surrounding each set of chromosomes and the chromosomes decondense during telophase II.

The end results of meiosis are four haploid cells with only one chromatid on each chromosome, which are formed by cytokinesis, which divides the chromosomal sets into new cells.

The chromosomes are encased in nuclear membranes during telophase II. The two cells' cytoplasm is then divided by a process called cytokinesis. Four haploid daughter cells remain after meiosis and differentiate into either sperm or egg cells.

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In a phylogenetic tree, a grade refers to a group of organisms that share a similar level of evolutionary complexity.

A grade in a phylogenetic tree is a term used to describe a grouping of organisms based on their evolutionary complexity or level of development. It represents a horizontal slice through the tree, encompassing organisms that have reached a particular stage of evolutionary advancement.

Grades are determined by specific characteristics or traits shared by the organisms within the group. These traits may include anatomical features, physiological adaptations, or behavioral patterns. Unlike a clade, which represents a group of organisms sharing a common ancestor and all of its descendants, a grade does not necessarily include all descendants of a common ancestor.

Instead, it focuses on organisms that have independently evolved similar characteristics or adaptations, regardless of their ancestral relationships. Grades provide a way to categorize organisms based on their relative level of complexity and track their evolutionary progress through time.

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In genetics, homozygous means having inherited the same versions (alleles) of a genomic marker from both biological parents. As a result, a person who is homozygous for a genetic marker has two identical copies of that marker.

Each allele pair indicates the genotype of a single gene. Homozygous genotypes have two identical alleles at a certain locus, while heterozygous genotypes have two different alleles.

Synapsis. The pairing of two homologous chromosomes that occurs during meiosis is known as synapsis. This occurs during the prophase of meiosis I.

When homologous chromosomes pair, the homologous chromosomes cross across and exchange genetic material at certain places. This is known as crossing over.

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Answer:

epithelium cartilage adipose tissue bone blood

Answer:

Hi elmo!

Explanation:

ANd i think the answer is C!

hope this helps c:

The statement "whether an organism or tissue uses fermentation or oxidative phosphorylation is dependent on the amount of oxygen available" is true.

Fermentation is an anaerobic process, meaning it can occur in the absence of oxygen. This process involves the breakdown of glucose to produce ATP and lactate or ethanol as byproducts. Fermentation is less efficient than oxidative phosphorylation in terms of ATP production but can still provide energy to cells when oxygen is limited.
On the other hand, oxidative phosphorylation is an aerobic process that requires oxygen to occur. This process occurs in the mitochondria of eukaryotic cells and involves the transfer of electrons through the electron transport chain to generate a proton gradient. This gradient is then used by ATP synthase to produce ATP. Oxidative phosphorylation is a highly efficient process, producing much more ATP than fermentation.

In summary, whether an organism or tissue uses fermentation or oxidative phosphorylation depends on the availability of oxygen. If oxygen is present, oxidative phosphorylation will occur, but if oxygen is limited or absent, fermentation may be used as an alternative energy source.

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A potential hypothesis for analyzing factors that affect carrying capacity and biodiversity in a population growth project could be: "If the carrying capacity of a particular ecosystem is exceeded due to increased population growth, then biodiversity within that ecosystem will decrease as resources become more limited and competition among species increases."

This hypothesis suggests that the ability of an ecosystem to sustain a certain number of individuals is directly related to the diversity of species present. By analyzing factors such as resource availability, habitat fragmentation, and species interactions, researchers can better understand how population growth impacts the overall health and stability of ecosystems.
A possible hypothesis for your population growth project could be: "In an ecosystem, the carrying capacity and biodiversity are significantly influenced by factors such as resource availability, competition, and predation. As these factors change, the population growth rate and overall biodiversity will either increase or decrease accordingly."

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Centrioles and spindles are structures involved in cell division, specifically in the process of mitosis. They are composed of microtubules and motor proteins. The correct option is c: microtubules and motor proteins.

Centrioles are cylindrical structures consisting of nine triplets of microtubules arranged in a specific pattern. They are located in the centrosome, which is an organelle that organizes microtubules in the cell.

During cell division, the centrioles replicate and move to opposite poles of the cell, forming the spindle apparatus.

The spindle apparatus is composed of microtubules, which are long, thin, cylindrical structures made up of protein subunits called tubulin.

The microtubules of the spindle apparatus radiate outwards from the centrosomes and attach to the chromosomes via protein structures called kinetochores.

The spindle apparatus helps to separate the chromosomes during cell division by pulling them towards opposite poles of the cell.

Therefore, the correct option is c: microtubules and motor proteins.

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Answer:

Before the cell enters meiosis, the chromosomes in a cell are duplicated (during the interphase). In meiosis I, the chromosomes condense along the center of the nucleus and pair with their homologues during crossing over. Next, the pairs of chromosomes separate and move to opposite ends of the cell.

Explanation:

Answer:

Our scientific explanation framework consists of four components: (1) claim, (2) evidence, (3) reasoning,1 and (4) rebuttal.

Explanation

Answer:

d

Explanation:

ive had this question before

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Prokaryotes are single cell organism. Prokaryotes were the most earliest organism and they lived and evolved all alone on earth for 2 billion years. They have continued to adapt and flourish on an evolving earth and in turn they helped the earth to change it.  Prokaryotes, the simple creatures fed on carbon compounds that were accumulating in Earth's early oceans. Slowly, other organisms evolved that used the Sun's energy, along with compounds such as sulfides, to generate their own energy.

The large container used to collect excrement from animals kept in a confined area is commonly referred to as a manure pit or a manure storage facility.

When animals are kept in a confined area, such as a barn or feedlot, their excrement needs to be managed properly to prevent environmental pollution and maintain hygiene. One common method of handling the large amount of animal waste is by collecting it in a designated storage facility known as a manure pit or manure storage facility.

A manure pit is typically a large, sealed container or structure designed to hold and store the accumulated excrement from animals. It serves as a central location for the collection of manure, urine, and bedding materials, such as straw or sawdust. The pit is often constructed with concrete walls and a solid or slatted floor to facilitate the containment and removal of the waste. Some manure pits may also include a system for separating solids and liquids, such as a slurry or sedimentation process.

The purpose of collecting the animal excrement in a manure pit is to facilitate proper management and disposal of the waste. By storing the waste in a controlled environment, it can be handled more efficiently, allowing for subsequent treatment or disposal methods such as composting, anaerobic digestion, or spreading onto fields as fertilizer. Proper management of animal waste is essential to minimize potential environmental impacts, such as water contamination and the release of greenhouse gases.

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Answer: False

Explanation:

A number of the elements have been created in recent years using particle accelerators.

They are nihonium, moscovium, tennessine, and oganesson for elements 113, 115, 116 & 117 on the periodic table of elements.

Answer:

A competitive firm’s marginal revenue always equals its average revenue and price. This is because the price remains constant over varying levels of output. In a monopoly, because the price changes as the quantity sold changes, marginal revenue diminishes with each additional unit and will always be equal to or less than average revenue. A conclusion is the last paragraph of your essay, or, if you’re writing a really long essay, you might need 2 or 3 paragraphs to conclude. A conclusion typically does one of two things—or, of course, it can do both: Summarizes the argument. Some instructors expect you not to say anything new in your Hydro-power is the energy harnessed from running water-streams, rivers or any other artificial or natural water flow. It is one of the oldest method of energy production. Even in the medieval period, people used to derive energy from water wheels. The contribution of hydel power in the world en­ergy production scenario is immense and ever-increasing.

Hydro-electricity now contributes nearly 7% of global electricity production when only 15.3 percent of the global exploitable hydro-electric potential is being used. Ever increasing awareness of ecology and social costs of hydro-plant construction failed to debar the increas­ing use of hydro-electricity.

Explanation:

Explanation:

this is just what is in my mind

Answer:

Introduction/Hook- Begin with a question based on the article. Give at least with three reasons of you position. Give your thesis.

Body- Explain three reasons of why is good or bad idea to invest in hydroelectric energy.

Provide evidence and explain it in each paragraph.

Conclusion- This the last chance to convince the reader to agree with your statement. Do not rewrite the reasons. You can restate your thesis.

If it is an argumented essay, provide the counterclaim (the other side opinion)and prove them that your statement is better.( this usually is the last paragraph of the body)

Explanation:

I'm not good at essays, but I know the basics.

I hopes this helps.

The elimination reaction is triggered by the RNA molecule component of a spliceosome during splicing.

Most biological cells contain ribonucleic acid (RNA), a crucial biological macromolecule. It plays a major role in the production of proteins by acting as a messenger to DNA, which in turn carries the genetic instructions necessary for the growth and maintenance of life.

The double molecule with a lengthy chain of nucleotides is called DNA. The single-stranded molecule called RNA has a shorter nucleotide chain than other molecules. DNA is self-replicating; it reproduces itself. RNA cannot duplicate itself.

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Answer:

The closer the planet is to the Sun, the greater the pull of the Sun's gravity, and the faster the planet orbits.

Explanation:

Answer:

sorry this is late but the correct ansewer is C

Explanation:

Answer:

C

Explanation:

Changes in the environment can lead to the extinction of a species.

Changes in the environment, such as temperature or rainfall changes, habitat destruction, and human activities like deforestation, can cause a species to go extinct if it cannot adapt to the new environment. The extinction of one species can also lead to the extinction of others that are dependent on it, creating a domino effect. In general, species that have small populations and restricted ranges are more vulnerable to extinction.

Extinction is the dying out of a species that occurs when the last individual member of a species dies, and the species ceases to exist. This can happen as a result of natural causes or human activities such as habitat destruction, pollution, overhunting, or climate change. When a species goes extinct, it is lost forever, and all of its unique traits and adaptations are lost with it.

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Answer:

Titan which orbits Saturn.