Answer: a. They transport oxygenated blood to the body.
Explanation:
Arteries are blood vessels that carry oxygenated blood away from the heart to the rest of the body, with the exception of the pulmonary artery, which carries deoxygenated blood from the heart to the lungs for oxygenation.
what is vascular plants?
Vascular plants, also known as tracheophytes, are a group of plants that possess specialized tissues for conducting water, nutrients, and sugars throughout their structures is called vascular plants.
These specialized tissues, called vascular tissues, consist of xylem and phloem, and allow vascular plants to transport water and nutrients from their roots to other parts of the plant, such as leaves, stems, and reproductive organs.
Xylem is responsible for transporting water and minerals from the roots to the rest of the plant. It consists of specialized cells called tracheids and vessel elements, which are elongated cells with thick cell walls that are adapted for water transport.
Phloem, on the other hand, is responsible for transporting sugars, such as glucose and sucrose, as well as other organic compounds, from the leaves, where they are produced through photosynthesis, to other parts of the plant.
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What disturbance may occur if the population of nitrifying bacteria in the soil decreases?
A. There may be a sharp decrease in the amount of ammonium available.
B. There may be a increase in denitrifying bacteria.
C.The concentration of nitrates in the soil would decrease.
D. Plants would no longer require nitrogen to form amino acids.
PLEASE HELP I NEED AN ANSWER ASAP!
Explanation:
If the population of nitrifying bacteria in the soil decreases, there can be several disturbances in the nitrogen cycle that could negatively impact the growth and health of plants. Nitrifying bacteria play a critical role in converting ammonia (NH3) to nitrite (NO2-) and then to nitrate (NO3-) through the process of nitrification. Nitrate is an essential nutrient for plant growth, and without a sufficient supply of it, plants may not be able to grow and produce healthy yields.
The decrease in nitrifying bacteria can lead to the accumulation of ammonia in the soil, which can be toxic to plants. Ammonia can increase the pH levels in soil, making it more alkaline, and this can further limit the availability of nutrients to plants. Additionally, reduced nitrification can lead to decreased soil fertility and productivity, as well as the accumulation of other harmful compounds like nitrite, which can stunt plant growth and even cause death in severe cases.
Ultimately, the loss of nitrifying bacteria can cause imbalances in the soil food web and the overall functioning of the ecosystem, leading to reduced crop yields, reduced plant diversity, and an increase in pests and diseases. Thus, it is essential to maintain a healthy population of nitrifying bacteria in the soil to ensure that plants can thrive and ecosystem services are maintained.
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What is female reproductive system ???
...
explain it here please ..
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What role is played by the following structures of the skin in controlling the temperature of the body during over cooling erector muscle and blood vessels
Answer: Homeostasis/Thermoregulation
Explanation: The skin's immense blood supply helps regulate temperature: dilated vessels allow for heat loss, while constricted vessels retain heat. The skin regulates body temperature with its blood supply. The skin assists in homeostasis. Humidity affects thermoregulation by limiting sweat evaporation and thus heat loss.
Erector muscles: These muscles are in charge of making the hair follicles in the skin rise up, resulting in "goosebumps" or piloerection as it is more generally called.
Thus, The erector muscles tighten when the body overcools, making the hair stand on end. As a result, a layer of trapped air forms around the skin, acting as insulation and assisting in lowering body heat loss.
Blood vessels: The cutaneous vasculature, or tiny arteries and arterioles in the skin, play a critical role in controlling body temperature.
The blood vessels in the skin experience vasoconstriction, which causes them to constrict or narrow, when the body is subjected to cold temperatures.
Thus, Erector muscles: These muscles are in charge of making the hair follicles in the skin rise up, resulting in "goosebumps" or piloerection as it is more generally called.
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describe echolocation in bats
write an argumentative essay in which you explore the challenges caused by human interaction with the environment first reread California invasive plant inventory to review the issue of invasive species then do research choose an invasive plant or animal that people have introduced into the forest the Everglades or could you a spreading invasive plant research your parent or animal and at least three part or digital resources such as folks and magazines in reliable resides as you research ask yourself should humans try to solve this problem or let nature take it's course
CAREFUL !! Most of the answers will be created by bots. However, here's an AI-free essay that will guarantee you not be accused of using ChatGPT.
We as a species have caused environment problems, like introducing invasive species to native ecosystems. Invasive species are organisms that are not originally from a particular area and can harm the environment by taking over and harming native plants and animals.
For instance, the Burmese python was introduced to the Everglades by people, and this species is not native to the area and has caused harm to the ecosystem by preying on native animals, leading to a decline in the population of species like rabbits, raccoons, and even allgators.
Humanity has to address the problem of invasive species. If nothing is done about it, they can cause irreversible harm to native ecosystems. By doing things to prevent the introduction and spread of invasive species, we can help protect our environment.
Therefore, it is our responsibility to try and solve the invasive species problem. We should work towards preventing the introduction of new invasive species and controlling the spread of existing ones.
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Read the passage from Darwin's journal.
The Amblyrhynchus, a remarkable genus of lizards, is confined to this archipelago; there are two species, resembling each other in general form, one being terrestrial and the other aquatic. This latter species (A. cristatus) was first characterized . . . from its short, broad head, and strong claws of equal length, that its habits of life would turn out very peculiar, and different from those of its nearest ally, the iguana. It is extremely common on all the islands throughout the group, and lives exclusively on the rocky sea beaches, being never found . . . even ten yards in-shore. It is a hideous-looking creature of a dirty dark (black) color, unintelligent, and sluggish in its movements. The usual length of a full-grown one is about a yard, but there are some even four feet long; a large one weighed twenty pounds: on the island of Albemarle, they seem to grow to a greater size than elsewhere. Their tails are flattened sideways, and all four feet are partially webbed. They are occasionally seen some hundred yards from the shore, swimming about; and Captain Collnett, in his voyage says, “They go to sea in herds a-fishing, and sun themselves on the rocks, and may be called alligators in miniature.” It must not, however, be supposed that they live on fish. When in the water, this lizard swims with perfect ease and quickness, by a serpentine movement of its body and flattened tail—the legs being motionless and closely collapsed on its sides. A seaman on board sank one with a heavy weight attached to it, thinking thus to kill it directly, but when an hour afterward, he drew up the line, it was quite active. Their limbs and strong claws are admirably adapted for crawling over the rugged and fissured masses of lava, which are everywhere from the coast. In such situations, a group of six or seven of these hideous reptiles may oftentimes be seen on the black rocks, a few feet above the surf, basking in the sun with outstretched legs.
What structural adaptation of the A. cristatus lizard helps them on land?
A} Webbed Feet For Swimming
B} Strong Claws For Climbing
C} Sunning On Rocks
D} Serpentine Movement Of Tail
Answer:
B) Strong Claws For Climbing.
Explanation:
The strong claws of equal length of the A. cristatus lizard help them on land by allowing them to crawl over the rugged and fissured masses of lava, which are everywhere from the coast.
What was the first city to be struck by the new atomic bomb?
Philippines
Hiroshima
Tokyo
Bataan
Answer:
Hiroshima
Explanation:
The first city hit by an atomic bomb was Hiroshima, Japan. The bomb was dropped on August 6th, 1945.
a patient is to receive 0.000125 decigram of synthhroid. how many tablets should she take
To determine the number of tablets the patient should take, we need to know the strength of each tablet.
Assuming each tablet contains 0.025 milligrams (mg) of Synthroid (levothyroxine), we can convert the prescribed dose from decigrams to milligrams:
0.000125 decigrams = 0.00125 milligrams (since 1 decigram = 10 milligrams)
Now, we can divide the prescribed dose by the strength of each tablet:
0.00125 mg ÷ 0.025 mg per tablet = 0.05 tablets
However, we cannot give a patient only a fraction of a tablet. Therefore, we need to round up to the nearest whole tablet:
0.05 tablets rounded up = 1 tablet
Therefore, the patient should take 1 tablet of Synthroid.
why does a persons heart rate, breath rate and temperature increases during an exercise?
Answer:
When you are exercising, your muscles need extra oxygen—some three times as much as resting muscles. This need means that your heart starts pumping faster, which makes for a quicker pulse. Meanwhile, your lungs are also taking in more air, hence the harder breathing.
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Is there a difference for DTA (Direct Transfer Agreement) and AST? (Associate in Science - Transfer Degree)
Which one would be better for to choose? Such as their advantages and and downsides.
Yes, there is a difference between DTA and AST. For those seeking to transition to a four year college or university the DTA program provides a broad education foundation that is widely recognized by many institutions while for students with an eye towards science majors specifically the AST degree will provide a more targeted curriculum.
What is the difference between DTA and AST?DTA is an agreement outlining courses transferable from Washington state's community colleges to universities—enabling students to enter four-year universities as juniors. This partnership ensures fulfillment of lower-division general education requirements necessary for any university they decide to enroll from those provided by DTA's list of approved classes.
But significantly distinct is AST (Associate in Science - Transfer Degree), designed particularly for science-related fields and the pursuit of bachelor's degrees related thereto at four-year institutions; more rigorous coursework—a more extensive emphasis on science-related courses—are integral components of its curriculum.
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Which phrase describes an example of a model?
a microscope that is used to observe a cell
a volcano that can explode made for a science fair project
a review paper that explains how a plant species grows
a news report that communicates information about climate change
The phrase that describes an example of a model is "a review paper that explains how a plant species grows". Therefore, option (C) is correct.
A model is a representation or description of a system, process, or phenomenon that is used to help understand or predict how it works.
A review paper that explains how a plant species grows can be considered a model because it provides a conceptual framework for understanding the processes involved in plant growth. Therefore, option (C) is correct.
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Which of the options below are adding Carbon back to the atmosphere?
Answer:
D
Explanation:
The combustion of fossil fuels adds carbon back to the atmosphere.
Of the options below, what type of amino acid would you NOT expect to find in the trans-membrane portion of ß-amyloid precursor protein (ßAPP)?
Select one:
a.
valine
b.
alanine
c.
serine
d.
aspartate
The type of amino acid you would not expect to find in the trans-membrane portion of ß-amyloid precursor protein (ßAPP) is aspartate (option D)
What is aspartate?Aspartate is a charged and polar amino acid, and it is not typically found in the hydrophobic transmembrane region of proteins such as ß-amyloid precursor protein (ßAPP).
In contrast, valine, alanine, and serine are nonpolar or weakly polar amino acids that are often found in transmembrane regions due to their hydrophobicity.
Transmembrane region typically consists of hydrophobic amino acids that can form alpha-helices that span the hydrophobic core of the lipid bilayer.
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3. The total energy released by an earthquake is best measured on the
A. Richter scale.
B. Modified Mercalli scale.
C. moment magnitude scale.
rthquakes?
Answer:
C. moment magnitude scale
A psychological disorder is a pattern of symptoms that cause ____ and impair the ability to function in one or more important areas.
A. mood impairment
B. a bizarre set of symptoms
C. irrational fears
D. significant personal distress
Answer:
D. significant personal distress
If a solution is undergoing a reaction where CO2 is being used as a reactant, what color is the phenol red-containing solution shifting toward?
a.)pink
b.)colorless
c.)red
d.)green
e.)yellow
Phenol red is a pH indicator that changes color in response to changes in acidity or basicity of a solution. In acidic solutions, phenol red is yellow, while in basic solutions, it is pink.
If a solution is undergoing a reaction where CO2 is being used as a reactant, it means that the CO2 is being consumed and converted into some other product(s). One of the products of this reaction is likely to be a base, since CO2 is an acidic gas and tends to form acidic solutions when it reacts with water. Therefore, the solution is likely to become more basic as the reaction proceeds.
As the solution becomes more basic, the phenol red indicator will shift from its original yellow color towards pink. Therefore, the answer is (a) pink.
Which statement is true about the cells of no living objects?
The true statement about the cells of non-living objects is; They do not have cells. Option D is correct.
Non-living objects, such as rocks, minerals, and other inanimate materials, do not exhibit cellular structures or functions as they do not possess the biological characteristics of living organisms.
Cells are the basic structural and functional units of living organisms, and they are responsible for carrying out various life processes. Prokaryotic cells are simple cells without a distinct nucleus, while eukaryotic cells are more complex cells with a distinct nucleus and membrane-bound organelles. However, non-living objects do not possess the characteristics or structures of living organisms, including cells.
Hence, D. is the correct option.
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--The given question is incomplete, the complete question is
"Which statement is true about the cells of non-living objects? A. They have prokaryotic cells. B. They have eukaryotic cells. C. They have a mixture of prokaryotic and eukaryotic cells. D. They do not have cells."--
Explain the concept of carrying capacity and occupiable space and demonstrate an understanding of how recent population trends affect this.
Answer:
Carrying capacity refers to the maximum number of individuals that an environment can support without being degraded. Occupiable space refers to the amount of space available for living organisms. The carrying capacity of an environment is determined by factors such as food availability, water availability, and space. When a population approaches its carrying capacity, resources become more scarce and the growth rate slows. Recent population trends have been driven largely by increasing numbers of people surviving to reproductive age, and have been accompanied by major changes in fertility rates, increasing urbanization and large-scale migration
Explanation:
What goes in what category
Guanine pairs with cytosine
Adenine pairs with thymine
The chromosome is a thread-like structure found within the nucleus that contains the DNA.
DNA is composed of nucleotides.
Nucleotides are made up of nitrogenous bases, sugar backbone, and phosphate groups that are involved in phosphodiester bonds.
What is the chromosome?The majority of living cells include chromosomes, a thread-like structure made of nucleic acids and proteins that carries genetic information in the form of genes.
Proteins and DNA are arranged into genes that make up a chromosome. 23 pairs of chromosomes are typically found in each cell.
Sex chromosomes and autosomes are the two primary types of chromosomes found in a wide variety of species with distinct sexes.
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Describe how ATP is formed (Include the terms: electron transport chain, chemiosmosis, and ATP synthase)?
ATP (Adenosine Triphosphate) is framed through the course of cell breath, which happens in the mitochondria of eukaryotic cells.
The cycle includes a progression of biochemical responses that eventually lead to the development of ATP from the energy put away in supplements like glucose.
How ATP form through different processes ?
A collection of proteins in the mitochondria's inner membrane makes up the electron transport chain.
Energy is released as electrons move along the chain and is used to move protons (hydrogen ions) from the mitochondrial matrix into the intermembrane space.
This makes an electrochemical slope, with a higher convergence of protons in the intermembrane space than in the lattice.
Chemiosmosis is the method by which ATP is made from the potential energy stored in the electrochemical gradient.
The energy that is released as protons flow back into the matrix via the enzyme ATP synthase is used to drive the synthesis of ATP from ADP (adenosine diphosphate) and Pi (an inorganic phosphate).
The term for this process is oxidative phosphorylation.
The complex enzyme ATP synthase is found in the inner mitochondrial membrane. It goes about as a sub-atomic engine, utilizing the progression of protons to drive the blend of ATP from ADP and Pi.
The enzyme's catalytic sites, which produce ATP from ADP and Pi, are driven by the protons' energy as they move through the enzyme. This energy is used to propel a structure that looks like a rotor as it rotates.
In a nutshell, the pumping of protons into the intermembrane space during the formation of ATP involves the movement of electrons along the electron transport chain.
The enzyme ATP synthase is used to drive the synthesis of ATP from ADP and Pi via the resulting electrochemical gradient.
This cycle is known as chemiosmosis and is a key stage in the development of ATP during cell breath.
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What is difference between and leading and lagging strand?
Answer:
The lagging strand is synthesized continuously, whereas the leading strand is synthesized in short fragments that are ultimately stitched together.
The leading strand is synthesized at twice the rate of the lagging strand.
Question 15 of 20
The state of the atmosphere at a given time and place is known as:
Answer:
don't know
Explanation:
I had this
How will you differentiate Northeast monsoon and Southwest monsoon?
Answer:
by markovian
Explanation:
use magnifixal of 4x 66kq
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Combustion of Fossil Fuels is adding Carbon back to the atmosphere.
What is Fossil Fuels?A fossil fuel is described as a hydrocarbon-containing material such as coal, oil, and natural gas, formed naturally in the Earth's crust from the remains of dead plants and animals that is extracted and burned as a fuel.
Photosynthesis removes carbon dioxide from the atmosphere and plants absorb carbon dioxide and use it to produce organic matter.
Animal respiration and plant respiration also release carbon dioxide, but the differ in that they do not add new carbon to the atmosphere, as the carbon they release comes from the organic matter that they consume or produce through photosynthesis.
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Describe one way that CRISPR technology has positively affected society.
Answer: CRISPR enables desirable crop traits by introducing DNA from nature-generated genetic variations within the crop itself, and not from another reproductively incompatible organism. This eliminates the fear that foreign DNA may be present in the resultant plant and related finished goods.
Answer: Removing malaria from mosquitoes
Explanation:
Using the information in the reading. Please complete the second (new) strand of DNA using the complementary base pairing rules. The first example has been completed for you.
When a DNA replicates, adenine pairs with thymine and guanine pairs with cytosine.
Based on the sequence of the template strand, an enzyme known as DNA polymerase adds new nucleotides to the expanding strand during DNA replication. The complementary base pairing rules dictate the order in which the nucleotides are added.
The double helix two strands split apart during DNA replication, with each strand acting as a model for the creation of a new complementary strand. Adenine (A), thymine (T), cytosine (C), and guanine (G) are the bases found in DNA. The complementary base pairing rules state that A will always pair with T and C will always pair with G.
b. Original strand- A G T C T A C G
Complementary strand- T C A G A T G C
c. Original strand- G C G T A T G A
Complementary strand- C G C A T A C T
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Correct pairing please answer ASAp
I already know the answer to question #4, what I'm really looking for is the thought process behind finding the answer. What would I look at first and how do I move on from there?
In complete dominance, the dominant alleles inhibits the expression of the recessive allele. In the exposed example, both alleles express complete dominance. Parents genotypes: Male ⇒ Ssbb. Female ⇒ ssBb
What is complete dominance?Complete dominance is the inheritance pattern in which one of the involved alleles -dominant allele- hides the expression of the other alleles -recessive allele- in individuals who are heterozygous for a trait.
Homozygous dominant individuals ⇒ Dominant trait ⇒ Only dominant allelesHomozygous recessive individuals ⇒ Recessive trait ⇒ Only recessive allelesHeterozygous individuals ⇒ Dominant trait ⇒ Both allelesIn the exposed example we have two traits: color and pattern. Both traits are coded by diallelic genes.
Color
Dominant allele B codes for blackRecessive allele b codes for redPatter
Dominant allele S codes for solirRecessive allele s codes for spottedSince no other information is provided, we will assume complete dominance and independent genes.
Possible genotypes Phenotypes
SSBB, SsBB, SsBb Solid blackSSbb, Ssbb Solid redssBB, ssBb Black and whitessbb Red and whiteCross: Red male with black and white female
Red male: SSbb or SsbbBlack and white female: ssBB or ssBbPuppies:
Black ⇒ SSBB, SsBB, SsBB, SsBbRed ⇒ SSbb, SsbbBlack and white ⇒ ssBB, ssBbRed and white ⇒ ssbbAmong the progeny, we can find the four possible phenotypes, which suggests that the parents expressing the dominant trait are heterozygous.
Cross) Red male with black and white female
Parentals) Ssbb x ssBb
Gametes) Sb, Sb, sb, sb sB, sB, sb, sb
Punnett square) Sb Sb sb sb
sB SsBb SsBb ssBb ssBb
sB SsBb SsBb ssBb ssBb
sb Ssbb Ssbb ssbb ssbb
sb Ssbb Ssbb ssbb ssbb
F1) 4/16 individuals are expected to be SsBb, solid black
4/16 individuals are expected to be ssBb, black and white
4/16 individuals are expected to be Ssbb, solid red
4/16 individuals are expected to be ssbb, red and white
Parents genotypes are
Red solid Male ⇒ Ssbb Black and white spotted female ⇒ ssBbYou can learn more about complete dominance at
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Compare and contrast xerophytes and sclerophytes
