30 extinct species name​

Option(B) Ureter is the correct option.

The ureter is a vital part of the urinary system in humans. It is a muscular tube that connects the kidneys to the urinary bladder. Each human has two ureters, one attached to each kidney, and they play a crucial role in the transportation of urine from the kidneys to the bladder.

The primary function of the ureter is to carry urine that is produced in the kidneys to the urinary bladder for storage before it is eliminated from the body through urination. The ureters accomplish this by using peristalsis, a wave-like muscular contraction, to propel urine along their length.

The ureters have a complex anatomical course. They originate from the renal pelvis, which is the funnel-shaped structure that collects urine from the kidneys. From there, they extend downward, crossing over the brim of the pelvis and passing behind the peritoneum, the membrane lining the abdominal cavity.

The efficient functioning of the ureters is essential for the proper elimination of waste products and maintenance of fluid balance in the body. Any obstruction or abnormality in the ureters can lead to conditions like kidney stones, urinary tract infections, or urinary reflux.

In summary, the ureters are muscular tubes that transport urine from the kidneys to the urinary bladder. They rely on peristaltic contractions to propel urine, and their structure and positioning help ensure unidirectional flow.

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The options given by Francis Collins to reconcile evolution and faith was in his argument that advances in science present “an opportunity for worship,” rather than a catalyst for doubt.

Francis Collins is known as an American physician-geneticist who discovered the genes associated with a number of diseases and led the Human Genome Project.

Francis Collins believed in seeing God as the creator of the universe – in all of its amazing complexity, diversity and awesome beauty – then science, which is, of course, a means of exploring nature, also becomes a means of exploring God’s creative abilities.

Francis Collins wanted to reconcile faith and evolution, and has been lauded for showing how a religious believer can rise to the highest levels of the scientific establishment while keeping his faith intact and while integrating his faith with his science.

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Answer:

The best explanation if we observe an epithelial cell with chromosomes are visible and two cell nuclei is that the cell has just gone through telophase but not cytokinesis (option b).

Explanation:

A somatic cell, when found in mitosis, exhibits the chromosomes distributed in both poles and the outline of two nuclei in the telophase phase, just before cytokinesis.

In mitotic telophase:

The division and differentiation of the nuclei in telophase is called karyokinesis. Later, cytokinesis occurs, where the daughter cells are separated.

The other options are not correct because:

    a and d. In the other phases described, S and G1, no chromosome distribution is observed at the poles.

    c. A somatic cell does not experience meiosis.

Explanation:

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Answer:

A diary is a primary source

Answer: Molecular biology

Explanation:

Answer:

1. The central dogma of molecular biology is DNA >>transcription>> RNA >>translation>> protein

2.  DNA replication refers to the genetic process of generating two identical DNA molecules from one DNA sequence. Recombination refers to the exchange of genetic material (DNA) between non-sister chromatids during cell division (meiosis)

Explanation:

Gene expression (also known as transcription) is the process by which a specific fragment of DNA called gene is used as template to synthesize an RNA molecule, usually a messenger RNA (mRNA), which is in turn used as template to create a protein. This final product (i.e., the protein) has an effect on the phenotype of the individual. The DNA template is a single-stranded ordered polynucleotide chain composed of four different types of nitrogenous bases: Adenine, Thymine, Guanine and Cytosine. In the complementary RNA molecule, Thymine bases are replaced by Uracil bases. Moreover, DNA replication refers to the process by which cells duplicate their genetic material before cell division (either mitosis or meiosis). During this process, both DNA strands are separated and each one is used as a template to synthesize a new DNA molecule. Finally, recombination or crossing over is a process where non-sister chromatids exchange genetic material during meiosis I (Prophase I). Recombination is known to increase genetic variation in resulting meiotic cells.

Answer:

organisms have the amazing ability to make (produce) their own energy-rich food molecules from sunlight and simple chemicals.

Explanation:

Answer: The term that would best define the fish added to the pond is INTRODUCED SPECIES. These species may be harmful to native species.

Explanation:

Introduced species are exotic species which has arrived there by human activity, which may be harmful to native species.

Introduced species may even be harmful to the entire ecosystem because they can break the delicate equilibrium of the ecosystem.

Introduced species may compete with native species for limited resources (e.g., water resources, foods, habitat, etc).

Answer:

7

Explanation:

i think the answer is B

Answer:

Smoke and Car Exhaust

Explanation:

Smoke is gas, which means that it can go into the air and pollute it. Car exhaust is also gas, so it can go into the air and pollute it as well.

Answer:

False

Explanation:

When insulin enters the muscle cells it signals the cells to stop breaking down glucose to stablize your body's blood sugar level

Answer:

false

Explanation:

because i know lol

The organisms that feed on dead and decaying matter are called Saprotrophs.

An organism that feeds on dead and decaying organic matter is called a saprotroph. These organisms are heterotrophic, which means that they obtain their food from other sources. They are important in the ecosystem because they break down dead organic matter and recycle it back into the soil, making nutrients available to other living organisms

Answer:

A. Saprotrophs

Explanation:

Saprotrophs are organisms that obtain their nutrients by feeding on dead and decaying matter. They play a crucial role in the ecosystem by decomposing organic material and recycling nutrients back into the environment.

These organisms secrete enzymes that break down complex organic compounds into simpler substances, such as sugars and amino acids, which they can absorb and utilize for their own growth and energy needs. Examples of saprotrophs include fungi (such as mushrooms and molds) and certain bacteria.

Unlike autotrophs, which can produce their own food through photosynthesis or chemosynthesis, saprotrophs rely on external sources of organic matter for their nutrition. They actively decompose dead plants, animals, and other organic materials, aiding in the process of nutrient recycling and decomposition.

Heterotrophs, on the other hand, are a broader category of organisms that obtain their nutrients by consuming other living or dead organisms. This includes saprotrophs, as well as other types of organisms such as herbivores, carnivores, and omnivores.

Parasites, meanwhile, are organisms that live in or on other organisms, known as hosts, and obtain their nutrients from the host while causing harm or damage to it. Unlike saprotrophs, parasites typically rely on a living host for their sustenance rather than feeding on dead and decaying matter.

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Answer:

Visceral fat

Explanation:

it is fat that wraps around your abdominal organs deep inside your body

The half-life of C-14 is approximately 5,700 years. The time it takes for a sample to decay to 55g of C-14 can be calculated using the radioactive decay formula:

\(N = N0 * (1/2)^(^t^/^T^)\)

Where:

\(N_0\) = initial amount of the substance (in this case, 220g)

N = final amount of the substance (in this case, 55g)

t = time

T = half-life of the substance (in this case, 5,700 years)

To solve for t, we can rearrange the formula as follows:

t = (ln(N/N0)) * T / ln(1/2)

Substituting the given values:

t = (ln(55/220)) * 5,700 / ln(1/2)

t ≈ 11,400 years

Therefore, it would take approximately 11,400 years to reduce a biological sample of C-14 weighing 220 grams to 55 grams of C-14.

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Cells are of two types: eukaryotic, which contain a nucleus, and prokaryotic, which do not. Prokaryotes are single-celled organisms, while eukaryotes can be either single-celled or multicellular.

Answer:

Frogs have smooth or slimy skin that is moist, whereas toads have thicker, bumpy skin that is usually dry. All toads are poisonous, while frogs are not.

Answers and Explanations:

Frogs and toads actually have a lot of differences, granted they look alike.

Frogs:

Frogs tend to have much longer legs than their body, which are made for jumping. They also tend to have much smoother, slimier skin. Frogs also tend to have longer front legs as well. Not only that, but frogs prefer to hop rather than walk. Frogs also sometimes have bigger eyes, unlike a toad. Because frogs need to stay slimy and smooth, frogs are most commonly and only found in areas where there is water, or where it is very damp.

Toads:

Toads tend to have shorter, more stubby front and back legs. Toads also tend to have more dry, wart-like skin. They also like to crawl more than hop around. These amphibians also tend to have eyes that are not as big as a toad. You are also more likely to see a toad than a frog because they tend to wander away from water, unlike a frog.

I hope this helps.

Answer:

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1-Water is passively transported into the roots and then into the xylem. 2-The forces of cohesion and adhesion cause the water molecules to form a column in the xylem. 3- Water moves from the xylem into the mesophyll cells, evaporates from their surfaces and leaves the plant by diffusion through the stomata.

Answer:

c. A salinity of less than 1%

Explanation:

Answer:

All organism are made by a basic unit called cell

Answer:

The last choice. Think of planets, the bigger they are, the stronger they attract to one another

Explanation:

hope it helps

Answer:

The yeast cannot survive above 30 degrees Celsius.

Explanation:

Fermentation is a form of anaerobic respiration carried out by cells of certain organisms like yeast. The process yields products like carbon dioxide (CO2) and alcohol. Hence, the rate of fermentation can be measured by the amount of CO2 or alcohol produced.

According to this graph, which graph shows the rate of alcoholic fermentation for yeast at different temperatures, it can be observed that the rate of fermentation increased at 10°C and began to decrease at 30°C. This data portrays that yeast cannot survive above 30 degrees celsius (°C), hence, the rate of fermentation decreased.

Homologous chromosomes are paired because they carry the same genes in the same order, although the alleles for each trait may differ.

During meiosis, the homologous chromosomes align during prophase I and exchange genetic material through a process called crossing over, which contributes to genetic diversity.In human beings, a pair of homologous chromosomes is present in every cell, one from each parent.

In females, the two X chromosomes are homologous pairs, while in males, the X and Y chromosomes are not homologous pairs since they carry different genes. During fertilization, the homologous chromosomes from the two parents pair up, and each gamete contains only one of each homologous chromosome.

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Answer:

d

Explanation:

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