Some elephants in the scrub jungles of Africa had long trunks with which to reach out for leaves. They were able to reproduce more successfully than elephants with short trunks. Which aspect of Darwin's theory is this scenario an example of?

Answers

Answer 1
"Gradual evolution" theory  would be your answer

this means that those traits that are useful would be passed down, and non-useful traits would die out

hope this helps
Answer 2
The aspect of Darwinism, that applies that small variations in the genes of a creature are passed on through natural selection, if it increases the probability of: competition, survival, and reproduction.

Related Questions

Explain how the structure of cilia and flagella relate to their functions.

Answers

The Cilia (could be found in the trachea and throat) help in so that in the attachment of substances like mucus (in the case of trachea) or attachment to surfaces (in bacterias case, it's called pili). Flagella bring about movement of the bacterium

The hormone released by the pineal gland that reduces body temperature and prepares you for sleep is

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Melatonin (also known as N-acetyl-5-methoxy tryptamine)

How do accessory pigments help photosynthesis?

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Accessory pigments help the plant by absorb energy from different wavelengths of light other than those that are absorbed by the main pigment chlorophyll.

What name is assigned to aug, which stands for methionine with which all mrna molecules start?

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The name assigned to AUG is START CODON.
The start codon is the first codon of the messenger RNA transcript which is translated by ribosome. The start codon usually codes for methionine in eukaryotes and a modified methione in prokaryotes. 

"prokaryotic cells are found in the domain(s) _____."

Answers

E. coli cells are found in the kingdom and domain of bacteria. They are unicellular, microorganisms that are single celled and shaped like rods

Prokaryotic cells are found in the domain(s) of bacteria and archaea.

What are prokaryotic cells?

Prokaryotic cells lack organelles, have no nucleus, and are significantly smaller than eukaryotic cells.

A cell wall protects every prokaryotic cell. Many additionally include a polysaccharide-based capsule or slime layer.

Single-celled organisms known as prokaryotes are found in the Bacteria and Archaea domains.

Bacteria and other single-celled creatures have prokaryotic cells. Prokaryotes are defined as organisms possessing prokaryotic cells. They were the first kind of organisms to evolve and continue to be the most prevalent ones.

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The type of chemical reaction responsible for breaking polymers back down into monomers is known as a condensation (or dehydration)

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This statement is false. When breaking down polymers into monomers, the reaction that takes place is hydrolysis. Remember when combing monomers the water is taken out dehydration, when breaking them up, you have to add a cleaved water molecule, and the breaking of water is hydrolysis.

Instead of having roots and leaves, molds grow as thread-like filaments called _____.

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They grow Hyphae instead.

hope this helps

A scientific theory is an untested hypothesis. True or false

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I think it would be true
FALSE! A scientific theory is a hypothesis, but it has been tested over and over until it could be proven true.

Hope this helps!  :)

Describe how phosphorus moves through the biotic and abiotic parts of an ecosystem

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Phosphorus is a basic supplement for plants and creatures as particles PO43-and HPO42-. It is a piece of DNA-particles, of atoms that store vitality (ATP and ADP) and of fats of cell films. Phosphorus is likewise a building piece of specific parts of the human and creature body, for example, the bones and teeth. 




Supplements travel through the biological system in biogeochemical cycles. A biogeochemical cycle is a circuit/pathway by which a concoction component travels through the biotic and the abiotic elements of a biological community. It is comprehensive of the biotic factors, or living beings, rocks, air, water, and chemicals.

Answer:

Phosphorus moves through both the abiotic and biotic factors through the phosphorus cycle. The accumulation of phosphorus takes place in the rocks and sediments, which are abiotic. Phosphorus in the form of phosphate may be mediated via wind and water, which both are also abiotic.  

Phosphorus gets absorbed by the plants, which are living and these plants further may get eaten up by other living species or may get die or decompose by the action of decomposers, which are also living. The phosphorus cycle comprises both abiotic and biotic elements that associate with phosphorus in its different forms, captivating it, storing it, and so on.  

True or false? insulin produced in a pancreas cell travels through the bloodstream to a target organ where insulin triggers sugar uptake into the target organ.

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false hope i helped plz make brainliest

In the scientific name of the mountain lion, felis concolor, felis is the:

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I believe the answer may be scientific name..

The fusiform face area (ffa) in the brain is often damaged in patients with

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The fusiform face area (ffa) in the brain is often damaged in patients with prosopagnosia also referred to as face blindness.

What is prosopagnosia?

Prosopagnosia also referred to as face blindness, is actually a cognitive disorder of face perception where the ability to recognize familiar faces, including one's own face degrades.

It is often recognized as the fusiform face area (ffa) in the brain is often damaged in patients.

Thus, the answer is Prosopagnosia.

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Suppose you made the observation that bees seem to prefer a yellow flower that produces abundant amounts of pollen and nectar over a purple flower that produces less pollen and nectar. list two separate hypothese that you might make about bees and flowers

Answers

Bees prefer flowers that produce more nectar over flowers that produce lesser nectar.

Bees prefer flowers that are brightly-coloured over flowers that are dark-coloured.

Answer:

Hypothesis A - Bees prefer flowers that produce more nectar and pollen than the flowers that produce less nectar and pollen producing flowers.

Hypothesis B - bees prefer bright yellow flower that are visible easily than the flower that are dark.

The hypothesis mentioned above are explains the less pollination in the purple flower in comparison to the yellow flower. These hypothesis are made on the study or knowledge provided by the question.

Thus, the correct answer is - Hypothesis A - Bees prefer flowers that produce more nectar and pollen than the flowers that produce less nectar and pollen producing flowers.

Hypothesis B - bees prefer bright yellow flower that are visible easily than the flower that are dark.

20. Most of today’s organisms could not have lived on Earth 3.6 billion years ago because there was no _____ in the air then.

Answers

oxygen, mostly bacteria and they ran on glycolosis

Is oil a renewable or nonrenewable resource? Why?
A.) Oil is a product that forms naturally, so it's a renewable resource.
B.) Oil is being formed much faster than it is being consumed, so it's a renewable resource.
C.) Oil is consumed more rapidly than it is being formed, so it's a non-renewable resource.
D.) Oil will no longer form on Earth, so it's a non-renewable resource.

Answers

c.) oil is a non renewable resource
Hi!

Oil is a fossil fuel, and all fossil fuels are nonrenewable. So, A and B are automatically out of the equation.

We use oil faster than it can replenish. It can centuries for oil to form, and we simply are using it at such an excessive rate that it doesn't have time to reform time and time again.

Oil is just formed from petroleum, which is a mixture of multiple organic components. It won't just suddenly stop being formed, as it is in-fact naturally occurring.

Hopefully, this helps!

Phosphorus is atmotic number 15 When it comes to bonding with other atoms, what is phosphorus most likely to do?

Answers

Phosphorus has an electronic configuration in the simple form 2,8,5 and a spdf configuration of 1s² 2s² 2p⁶ 3s² 3p³.

The valence electrons in phosphorus (the electrons available for bonding) are 5.  As a result, an atom of phosphorus shares its electrons with another atom to form COVALENT bonds.  This is ideal since it would take a high amount of energy to release these five electrons, and it would be unlikely for atoms to lose 5 electrons to donate to phosphorus.

What sequence does information travel along the three basic parts of a neuron?

Answers

Signals are transmit along the neuron as a result of electrical changes across the membrane of the neuron. Information travel along the basic part of a neutron in the following sequence: action potential, re polarization, hyper polarization and refractory period.

Answer:

Dendrites: Most neurons contain many dendrites. The dendrites gather signals from other neurons and then convert them into electrical signals called impulses. Then they transmit these impulses to the cell body. Dendrites look like tree branches.

Cell body: The cell body is also known as soma. It contains the nucleus and the cell organelles.

Axons: Axons are large fibers that extend from the cell body. Each neuron has only one axon, and axons are generally long. Some axons are covered with a myelin sheath, a type of insulation that helps the axon rapidly transmit impulses. Axons carry nerve impulses to other neurons through junctions called synapses. They can also transmit nerve impulses to other types of cells, such as muscle cells.

Explanation:

Phosphorus is atomic number 15 when it comes to bonding with other Adams what is phosphorus most likely to do

Answers

Phosphorus which lies to the right side of the periodic table (group 5) has an electronic configuration in the simple form 2,8,5 and a spdf configuration of 1s² 2s² 2p⁶ 3s² 3p³.

Phosphorus has 5 valence electrons for bonding.  As a result, an atom of phosphorus shares its electrons with another atom to form COVALENT bonds rather than removing or adding on electrons to form ionic bonds like the group 6 and group 7 elemental atoms.  This is ideal since it would take a high amount of energy to release these five electrons, and it would be unlikely for atoms to lose 5 electrons to donate to phosphorus.

Explain why an increase in the thyroid hormone generally leads to decrease in thyroid-stimulating hormone

Answers

Thyroid hormone production is part of a negative feedback loop. A negative feedback loop is a mechanism within the body that helps to keep the body systems within balance or equilibrium. When the thyroid hormone is low the TSH or Thyroid stimulating hormone signals the body to produce the hormone to increase the bodies level. The body continues to produce more thyroid hormone until it balances the bodies' need. If all is working correctly when the Thyroid hormone level reaches the body ideal level the TSH level stabilizes as well and additional hormone production will not be stimulated. The correct level will be maintained.

Final answer:

An increase in thyroid hormone leads to a decrease in thyroid-stimulating hormone due to a negative feedback loop, where high levels of thyroid hormones inhibit the production of TSH to maintain balance.

Explanation:

An increase in thyroid hormone generally leads to a decrease in thyroid-stimulating hormone (TSH) due to a regulatory process known as negative feedback. The hypothalamus secretes thyrotropin-releasing hormone (TRH), which stimulates the pituitary gland to produce TSH. TSH then stimulates the thyroid gland to produce and secrete thyroid hormones. As the levels of thyroid hormones (T3 and T4) in the blood increase, they provide feedback to the hypothalamus and pituitary gland to inhibit the secretion of TRH and TSH. This mechanism ensures that the production of thyroid hormones is kept within a healthy range, preventing both deficiency and excess.

This negative feedback loop effectively reduces the secretion of TSH when thyroid hormone levels are sufficiently high, and vice versa, increases TSH production when thyroid hormone levels are low. Therefore, a rise in thyroid hormone levels naturally leads to a suppression of TSH secretion to maintain hormonal balance.

 HELP ASAP! a metamorphic rock has grains arranged in parallel layers or bands. what property is this rock displaying

Answers

foliated metamorphic rock

Answer:

They are generally crystalline with foliated or banded texture.

Explanation:

Metamorphic rocks are so called because they always begin as another type of rock. The Metamorphism involves the transformation of existing rocks (igneous or sedimentary) by either excessive heat and pressure, or through the chemical activity of fluids.

A recent encyclopedia entry about dogs cites multiple research papers done by scientists at veterinary schools. According to the article, Labrador retrievers come in two specific breeds: English and American. The English breed is described as stocky and heavy, while the American breed is described as tall and lanky. The article describes current scientific research as showing that males of both breeds usually weigh about 29-41 kg (65-90 lb), and females weigh 25-32 kg (55-70 lb). Coat colors for both breeds come in solid black, yellow, or chocolate. All labs have strong tails and webbed feet, which help them swim. Devon would like to use this information to determine if his new dog is an English or American Labrador retriever. Which best describes the reliability of the information?

Answers

Answer:

C. It is reliable because the article is based on multiple studies done by scientists at multiple veterinary schools.

Explanation:

This is your answer hope this helps anyone who is doing the same thing in biology.

The information is reliable because the entry has cited multiple research papers done by scientists at veterinary schools.

What is a scientific information?It is the information that has been researched on and has been proven scientifically.The information has been tested and confirmed by many scientists of that field.Which scientific information is reliable?

The information that has been proved and reproduced by many scientists is considered reliable and acceptable.

What are Labrador retrievers?These are the breed of retriever gun dogs."It was produced in the United Kingdom from fishing dogs imported from the Newfoundland colony."

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A biologist is studying a structure that is made up of two layers of phospholipids. What is she most likely studying?

Answers

a cell membrane. Cell membranes are phospholipid bilayers (a.k.a 2 layers of phospholipids)
The answer is cell membrane

1. Which of the following structures is most likely to be found in an autotrophic protist?
A. A food vacuole
B. A chloroplast
C. A plasmodium
D. A gullet

Answers

You'd most likely find B) A Chloroplast in a autotrophic protist.

Answer:

B. A chloroplast is the correct answer.

Explanation:

A chloroplast structures is most likely to be found in an autotrophic protist.

An autotrophic protist is a single-cell organism and they can prepare their food because they have chloroplasts present in their cell that perform the photosynthesis process by converting the sunlight energy into food.

Chloroplasts are the structure present in plants and of the algal cells that perform photosynthesis.

Autotrophic protist most popular group is called algae.

Autotrophic protist includes brown algae, red algae, diatoms, euglena, green algae, and dinoflagellates.

what is the approximate range of frequencies that humans can hear?
20to 20,000hz
0to 20hz
0 to2hz
0to 2,000hz

Answers

20hz to 20000hz is the range humans can hear

Final answer:

Humans can hear frequencies ranging from 20 Hz to 20,000 Hz, with sounds below and above this range being classified as infrasound and ultrasound, respectively.

Explanation:

The approximate range of frequencies that humans can hear is from 20 Hz to 20,000 Hz. This range defines what is audible to the human ear; sounds with frequencies below 20 Hz are classified as infrasound, while those above 20,000 Hz are considered ultrasound. It's interesting to note that different species have varying ranges of hearing. For example, dogs can hear up to about 45,000 Hz, and bats and dolphins can detect frequencies as high as 110,000 Hz. In contrast, frequencies such as those produced by dog whistles are inaudible to humans but can be heard by dogs.

The rate of firing of the postsynaptic neuron depends on the amount of _____ input it receives from the presynaptic neuron.​

Answers

both excitation and inhibition

What does candide admire about the baron's castle? why is candide envious as a result?

Answers

Candide is in amazement of the Baron's elaborate and lovely stronghold. At the point when the Baron shows Candide out kissing the Baron's little girl, he turns out to be much more desirous of Baron's château. Candide is the ill-conceived nephew of a German nobleman. He experiences childhood in the aristocrat's château under the tutelage of the researcher Pangloss, who shows him that this world is "the most ideal of all universes." Candide goes gaga for the noble's young girl, Cunégonde. The nobleman gets the two kissing and ousts Candide from his home.

Candide admires the baron's castle for its grandiosity, luxury, and the opulence of its surroundings. As a result, Candide becomes envious because he perceives his own status and possessions as inferior in comparison.

In "Candide" by Voltaire, Candide is initially struck by the magnificence of the baron's castle, which symbolizes wealth, power, and nobility. The castle is described with idyllic imagery, presenting an idealized version of aristocratic life.

Candide's admiration stems from the castle's lavish furnishings, the beauty of the gardens, and the overall splendor that exudes a sense of security and privilege.

This admiration quickly turns into envy as Candide realizes the vast difference between his humble origins and the baron's affluent lifestyle. He yearns for the comfort, respect, and social standing that the castle represents.

This envy motivates Candide's desire for a better life and sets the stage for his subsequent adventures and misfortunes, driven by the pursuit of happiness and status.

When there are two or more reactants, the active site provides a template on which the substrates can come together in the proper orientation for a reaction to occur between them 2.as the active site of an enzyme clutches the bound substrates, the enzyme may stretch the substrate molecules toward their transition state form, stressing and bending critical chemical bonds to be broken during the reaction. because ea is proportional to the difficulty of breaking the bonds, distorting the substrate helps it approach the transition state and reduces the amount of free energy that must be absorbed to achieve that state. 3.the active site may also provide a microenvironment that is more conducive to a particular type of reaction than the solution itself would be without the enzyme. ex: if the active site has amino acids with acidic r-groups, the active site may be a pocket of low ph in an otherwise neutral cell. in such cases, an acidic amino acids may facilitate h+ transfer to the substrate as a key step in catalyzing the reaction. 4. amino acids in the active site directly participate in the chemical reaction. sometimes this process even involves brief covalent bonding between the substrate and the side chain of an amino acid in an enzyme. subsequent steps of the reaction restore the side chains to their original states so that the active site is the same after the reaction was before?

Answers

The four steps listed above are TRUE and they refers to THE VARIOUS MECHANISMS THROUGH WHICH CATALYSTS LOWER THE ACTIVATION ENERGY AND SPEED UP THE RATE OF CHEMICAL REACTION.
The activation energy is the energy barrier that must be overcome before a chemical reaction can occur. Catalysts basically reduce the activation energy of reaction systems using the steps listed above.

Would you expect to find black sand beaches on Kauai? Why or why not?

Answers

The answer to the question is no, you can’t expect to find black sand beaches on Kauai, it is because black sand beaches are only found on islands that are recently have been formed from the black larva that has been breakdown from the volcanoes that had been erupted and Kauai is not included. You can only expect to find at this island is white and yellow sand beaches.

Black sand beaches are expected on Kauai because of the local volcanic rock composed of basalt, which produces mafic minerals upon erosion. In addition to black sand, green sand composed of olivine is also present due to similar geological processes.

Yes, one would expect to find black sand beaches on Kauai due to the weathering of local volcanic rock. Kauai, like other parts of Hawaii, has an abundant source of basaltic rock, which over time erodes under weather and wave action to form black sand beaches. The black sands are rich in mafic minerals, which derive from the local basaltic lava and can be more easily broken down compared to clasts of felsic minerals like quartz.

Furthermore, it's not only black sand that can be found in Hawaii. The islands are also home to green sand beaches composed of semi-precious olivine crystals that have eroded from basaltic rocks. Beaches can be comprised of various substrates depending on the local geology. For instance, the sand in Hawaii ranges from white coral sands to the unique black and green volcanic varieties. This diversity in beach substrate is due to the different types of sediment that are dominant in each locality.

Disorder in which the signals from the various sensory organs are processed in the wrong cortical area

Answers

the answer to this question is Synesthesia
Synesthesia is a form of the disorder that cause simulation in a certain sensory pathway to lead in secondary experience in another pathway.
This phenomenon wil cause a certain sense information being interpreted as more then one sensation.

Sensory processing disorder is a disorder in which signals from the various sensory organs are processed in the wrong cortical area. It can affect multiple sensory modalities and result in inaccurate processing of sensory information.

Disorder in which the signals from the various sensory organs are processed in the wrong cortical area is known as sensory processing disorder. This disorder can result in sensory information being processed inaccurately or in the wrong part of the brain. It can affect multiple sensory modalities, including touch, vision, hearing, taste, and smell. For example, a person may experience touch sensations as pain or may see colors when hearing certain sounds.
Therefore, sensory processing disorder is a disorder in which signals from the various sensory organs are processed in the wrong cortical area. It can affect multiple sensory modalities and result in inaccurate processing of sensory information.

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what zone is most likely to be home to algae?

Answers

The zone to be the home to algae is the dead zone or the limnetic zone.
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What made some Africans on the Middle Passage believe that they were bound for the slaughterhouse to be eaten by cannibals? Why is 39 rational ???????????????????? Out of 106 total sophomores, there were forty-eight boys who received either an a, b, or c on their first math test. out of the twenty-eight total as, sixteen girls received as. out of the total fifty-four bs, thirty girls received bs. twelve boys received a c out of the twenty-four total cs on the test. which two-way table represents this information Who was the first jamaican head of government to openly endorse republicanism? The blooms of anthurium flowers tend to look like Which of the following is the inverse of y=3^x Please hurryA. y= 1/3^xB. y=log3xC. y=(1/3)^xD. y=log1/3x Decribe the story that anthropologists think bones and tool they have discovered reveal about prehistory CAN SOMEONE READ OVER THIS EXPERIMENT FOR BIOLOGY AND TELL ME IF IT MAKES SENSE....?For this experiment with both slides they were viewed at 400x total magnification with a slightly zoomed in on the coarse adjustment (however I totally forgot to write these down.) The onion root looked slightly like a brick wall with tiny dots inside of it (the nuclei). The cell walls were not clear however the nuclei was very clear...Prophase: The chromosomes are condence and become visable for the very first time during this cycle. The fibers begin to form and the membrane begins to disintegrate.Metaphase: The fibers attach to the center of each sisters chromosomes. They then align in the center of the cell. The nuclear membrane disingrates completely. Anaphase: The center begins to split and the sister chromosomes then migrate towards the other sides of the cell.Telophase: The chromosomes are now clustered on both ends of the cell. The membrane is now reforming itself. The cell plate begins to form between both daughter nuclei. This is then followed by something called cytokinesis. I now changed my slides to the whitefish blastula.Viewing at a 400x magnification the cell shape stayed pretty much similar and they still had a circle like shape to them. In one certain cell, the chromosomes that had lined up in the previous stage, had broken apart from their duplicates and had headed into a different centriole. The stage the cell is now in is the anaphase. When observing the whitefish for the stage of telophase, the shape stayed the same as well except for one cell which is currently in the telophase stage. The cell that is in the different stage looked like two different circle cells that joined one another. This stage the chromosomes reached the center and a nuclear membrane than began to form around each nuclei. 30% of the cells are in the prophase stage5% of the cells are in the metaphase stage5% of the cells are in the anaphase stage5% of the cells are in the telophase stage35% of the cells are in a stage of mitosisIn this conclusion I see that the hypothesis is right. It states that cells will go thru multiple stages of mitosis in their lifetime and they surely do! It also states that we (the viewer) would be able to see the different slides in one stage of mitosis. We were able to see this as well. The other thing I would like to state is that the slides used for the microscope were not large or very clear, but it was good enough to sort of have the idea of what is going on. I have learned that both of the slides are continuously reproducing and creating new and different cells and I was able to learn how to calculate the percentage of cells in the different stages.. I was able to learn a lot from this experiment and I was also able to learn more about a microscope then what I already knew. If I could change this experiment I really would not in any way. It was simple and fun to learn about the different cells and the different ways that they move and the ways they reproduce. THANKS IN ADVANCE!Jenna multiplied four numbers together and then divided by -2. The result was a positive value.Which of the following statements MUST be true?None of the factors were negative.All of the factors were negative.An odd number of factors were negative.An even number of factors were negative. 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