Plantae taxon is essentially equivalent to the "embryophytes"
What is Plantae?The kingdom Plantae contains eukaryotes that are mostly photosynthetic.Algae and fungi were once included in the plant kingdom, which historically included all living creatures that were not animals; however, all modern definitions of Plantae omit these organisms along with some algae and prokaryotes (the archaea and bacteria).Green algae and Embryophyta are included in the concept of plants as belonging to the clade Viridiplantae (Latin for "green plants"), which is sister to the Glaucophyta (land plants).The latter comprises ferns and their allies, hornworts, liverworts, mosses, conifers, and other gymnosperms. Numerous cells make up the majority of plants.Green plants need primary chloroplasts, which are produced as a result of an endosymbiotic relationship with cyanobacteria, to photosynthesize most of the energy they receive from the sun.To learn more about Plantae with the given link
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Why does DNA determine a trait?
Answer:
Traits are determined by genes, and also they are determined by the interaction with the environment with genes. And remember that genes are the messages in our DNA that define individual characteristics. So the trait is the manifestation of the product of a gene that is coded for by the DNA.
Explanation:
Look at the paragraph below. What are the two missing words that go in space 3?
1
are large molecules of DNA.2 are small sections of DNA which code for a particular sequence of 3
to make a specific 4
Different versions of genes are called
5
Ribonucleic acid, sometimes known as RNA, is a second nucleic acid that exists in every cell. RNA is a nucleotide polymer, much like DNA.
A nitrogenous base, a sugar with five carbons, and a phosphate group make up each of the nucleotides in RNA. Instead of deoxyribose, ribose serves as the five-carbon sugar in the case of RNA. Unlike deoxyribose, which contains the nitrogenous bases adenine, cytosine, and guanine at the 2′ carbon, ribose has a hydroxyl group.
They do not, however, contain thymine; rather, they do contain uracil, which is represented by the letter "U." The structure of RNA is a single-stranded molecule, not a double-stranded helix. According to their intended use, molecular biologists have given a variety of RNA types their own names. Transfer RNA (tRNA), messenger RNA (mRNA) and ribosomal RNA.
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What type of evidence would you look for in a natural setting to indicate that there is competition taking placle among the plants?
When looking for evidence in a natural setting that indicates competition among plants, there are a few things to consider. First, competition for resources such as light, water, and nutrients is a common form of competition among plants.
One piece of evidence that may indicate this type of competition is the way in which plants grow in relation to one another. If plants are growing very close together, for example, this may suggest that they are competing for resources. Additionally, if plants that are growing in areas with less access to resources are smaller or less healthy than those growing in areas with more resources, this may also indicate competition.
Another type of competition that may occur among plants is allelopathy, which is when one plant releases chemicals that inhibit the growth of another plant. Evidence of allelopathy may include plants that are growing less vigorously or dying in the presence of other plants.
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When a lunar eclipse happens, which would we not see: the sun or the moon?
Answer:
the sun
Explanation:
The typical lunar eclipse happens when the Sun, Earth and moon are all aligned 180 degrees apart from each other in the sky. When this happens, the Earth casts a shadow onto the moon, so the Sun should not be visible at all if you can still see the moon.
Answer: you would not see the sun
Blood pressure is expressed in millimeters of mercury because mercury is so dense it enables pressure to be measured with shorter columns.true/false
It is TRUE that blood pressure is expressed in millimeters of mercury because mercury is so dense it enables pressure to be measured with shorter columns.
Mercury is a very thick liquid that makes it possible to measure pressure with shorter columns, which is why blood pressure is stated in millimeters of mercury. A sphygmomanometer, which measures blood pressure, typically consists of an inflated cuff wrapped around the arm and a mercury column that monitors the pressure placed on the cuff. The mercury column displays the systolic and diastolic blood pressure in millimeters of mercury as the pressure on the brachial artery in the arm is released after the cuff is inflated (mmHg). Because mercury is denser than water and creates a more observable column, it is used to monitor blood pressure with greater accuracy.
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In addition to carcinoma of the prostate, elevated prostate-specific antigen (PSA) can occur due to:
Answer: Your answer would be C: benign prostatic hyperplasia
Explanation: In addition to prostate cancer, several benign (not cancerous) conditions can cause a person's PSA level to rise, particularly prostatitis (inflammation of the prostate) and benign prostatic hyperplasia (BPH) (enlargement of the prostate)
which type of membrane protein might be dissociated from the membrane by changing the ph or the ionic strength?
By altering the ph or the ionic strength, peripheral membrane proteins of this type of membrane protein may become detached from the membrane.
Proteins that are only momentarily connected to the membrane are referred to as peripheral membrane proteins. They can participate in cell signalling since they are simple to remove. The most common method for removing these peripheral proteins from aqueous solutions involves changing the pH or ionic strength of the solution, which separates the ionic connections between the peripheral protein and either phospholipid polar head groups or other membrane proteins. On the other hand, peripheral proteins are easily able to separate from the cell membrane. Hydrogen bonds or electrostatic attraction between the polar heads and the polar sections of the proteins hold peripheral proteins together.
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Which of the following condensed general formulas represents alcohols?
A)ROR
B)RCOR
C)RCHO
D)ROH
E)RCOOH
Answer:
the answer is part d
Explanation:
(D) Roh
6. Name three examples of scientific laws.
Answer:
Newton's first law of motion.
Newton's second law of motion.
Newton's law of universal gravitation.
Explanation:
hope it helps :)
Consider a biosystem described by a cylindrical current line source, in which the current propagates along its surface. The biopotential from the line source is generated by this current. The biopotential propagates along the line source with a conduction velocity, vc. If the line source is parallel to the z axis, then the biopotential Vi at a particular point z and time t is expressed as follows: Vi(z,t)=Vi(t−∣z/vc∣) and Vi(z)=α(λz)3e−λz−β where Vi(z) is the profile of the biopotential along the length of the line current in the z direction, α and β are constant values and λ is a scaling factor. The line source current density is assumed to be proportional to the second derivative of the biopotential: im(z,t)=kid2∂z2∂2Vi(z,t) where ki is a constant and d is the line source diameter. For an observation point (x,y,z) and a current line source located at (xo,yo,zo(t)) in a medium with cylindrical anisotropy, the biopotential recorded at the surface of the model can be written as: Φ(x,y,z,t)=kv∫[kd((x−x0)2+(y−y0)2+(z−z∗)2](−21)i(z∗,t)dz∗ Where kv and kd are constants. The coordinates (xo,yo,z0) are the cartesian coordinates of the position of the line source. The biopotential can be presented by a convolution of the line source current and the impulse response of the volume conductor as follows: Φ(x,y,z,t)=im(z,t)∗h(x,y,z) Assume that a focused ultrasound wave compresses the line source by δ(t)(δ(t)<
The question provides an overview of a biosystem with a cylindrical current line source and describes the relationships between the biopotential, line source current density, and recorded biopotential. The equations and terms provided help in understanding the behavior and properties of the system.
The given question describes a biosystem with a cylindrical current line source, where the current propagates along its surface. This current generates a biopotential, which also propagates along the line source with a conduction velocity, vc. The biopotential at a particular point z and time t is represented as Vi(z,t) = Vi(t - |z/vc|), where Vi(z) represents the profile of the biopotential along the length of the line current in the z direction. The biopotential profile is given by Vi(z) = α(λz)^3 * e^(-λz) - β, where α and β are constant values and λ is a scaling factor.
The line source current density, im(z,t), is assumed to be proportional to the second derivative of the biopotential. It can be written as im(z,t) = ki * d^2 * (∂^2Vi(z,t)/∂z^2), where ki is a constant and d is the line source diameter.
For an observation point (x,y,z) and a current line source located at (xo,yo,zo(t)) in a medium with cylindrical anisotropy, the recorded biopotential at the surface of the model is given by Φ(x,y,z,t) = kv * ∫[kd * ((x-xo)^2 + (y-yo)^2 + (z-z*)^2)]^(-2/1) * im(z*,t) * dz*, where kv and kd are constants. The coordinates (xo,yo,zo) represent the Cartesian coordinates of the line source position.
The biopotential can be represented as a convolution of the line source current and the impulse response of the volume conductor. It is given by Φ(x,y,z,t) = im(z,t) * h(x,y,z), where * denotes the convolution operation.
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Which one of the choices is capable of phosphorylating key proteins involved in regulating the cell cycle? (I guessed once, it is not cyclin alone)
cyclin‐CDK complex
p53 protein
cyclin alone
CDK alone
The correct option that is capable of phosphorylating key proteins involved in regulating the cell cycle is Cyclin-CDK complex.What is Cyclin-CDK complex?Cyclin-CDK complex is a protein complex that is involved in cell division.
Cyclin-dependent kinases (CDKs) are a family of serine/threonine protein kinases that interact with regulatory subunits called cyclins.The complex is involved in phosphorylating key proteins involved in regulating the cell cycle. The phosphorylation process helps control the progression of the cell cycle through the various checkpoints.Cyclin-CDK complexes phosphorylate their substrates, altering protein function in the cell and inducing specific cell cycle transitions. CDK activity is tightly regulated by the abundance and availability of cyclins and by inhibitory phosphorylation by the kinase Wee1 and the phosphatase Cdc25.
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Circle the correct answer
1. True False
In AM waves, amplitude changes.
True or False. Biological polymers such as DNA and protein are polymers that contain
IDENTICALLY repeating monomers *
(1 Point)
False
True
Answer:
false
Explanation:
i took a test good luck
Select the correct answer from each drop-down menu. plants are classified based on the presence of a certain specialized tissue. a specialized tissue called_____tissue helps transport____and water to all parts of the plant.1. A. VascularB. MycorrhizaeC. Sporophyte2. A. PollenB. OxygenC. Nutrients
Answer:
1.Vascular B
2.Nutrients.
a tidal wave wipes out the entire population of mice living on an island. this is an example of
A tidal wave wipes out the entire population of mice living on an island. this is an example of the effects of abiotic factors on the island and its living creatures.
Much of the difference across various ecosystems is caused by abiotic forces. Abiotic variables affect whether species can live in a certain location by affecting the availability of vital resources including sunshine, water, oxygen, and minerals. Abiotic variables can also provide additional difficulties for biological forms, such as pollution, strong winds, and harsh temperatures.
In certain ecosystems, human activity now plays a significant role in selecting which life forms survive. The desert is arguably the most visible biome whose characteristics are influenced by abiotic forces. Deserts create ecosystems that are very different from those of any other environment due to the limited rainfall.
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Will award points and give Brainliest answer asap
Evaluate the following argument from a Darwinian perspective: Humans are still evolving, I am a human. Therefore, I am evolving. True or False?
Answer:
True i think
Explanation:
2. Who was the first to clearly define the idea of
a species?
Abeka Science 7th G
The most famous definition of a species comes from the 20th century German-born biologist Ernst Mayr, who emphasised the importance of interbreeding.
Name structure B in figure 16-1
List and describe the two places
in which mutations can take
place.
Answer:
lab, science lab
Explanation:
What does a number in front of a molecular formula stand for???????
Explanation:
The small number behind each element symbol designates the number of atoms of each element in a chemical formula. If there is no number, it is assumed there is only one of those elements. A large number designates how many units there are of that compound.
Answer:
Element's number of atoms in a chemical formula
Explanation:
The small number behind each element symbol indicates each element's number of atoms in a chemical formula. If there is no number, it is assumed there is only one of these elements. A huge numeral in front of a compound designates whereby many units there are of that compound.
State the name of the solution used to test for reducing sugar
The solution used to test for reducing sugar is known as Benedict's solution.
Benedict's solution is a deep blue alkaline solution that contains copper ions. When reducing sugars are present in a sample, they react with Benedict's solution to produce a reddish-brown precipitate. The intensity of the color produced is directly proportional to the amount of reducing sugar present in the sample.
Benedict's solution is commonly used in laboratory settings to test for the presence of reducing sugars in food, beverages, and biological samples. The solution used to test for reducing sugar is known as Benedict's solution.
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In the dna isolation process, ________ is used to break down the protein complexes and allow the dna molecules to easily precipitate.
In the DNA isolation process, ice cold 95% ethanol is used to break down the protein complexes and allow the DNA molecules to easily precipitate.
What is separation and isolation of DNA fragments?
The cutting of DNA by restriction endonucleases results in the fragments of DNA. These fragments can be separated by a technique known as gel electrophoresis.Since, DNA fragments are negatively charged molecules they can be separated by forcing them to move towards the anode under an electric field through a medium/matrix.The most commonly used matrix is agarose which is a natural polymer extracted from sea weeds.The DNA fragments separate (resolve) according to their size through sieving effect provided by the agarose gel. Hence, the smaller the fragment size, the farther it moves.The separated DNA fragments can be visualised only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiation (you cannot see pure DNA fragments in the visible light and without staining). We can see bright orange coloured bands of DNA in a ethidium bromide stained gel exposed to UV light.The separated bands of DNA are cut out from the agarose gel and extracted from the gel piece. This step is known as elution.The DNA fragments purified in this way are used in constructing recombinant DNA by joining them with cloning vectors.To learn more about DNA isolation process: brainly.com/question/18316109
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Compare and contrast the number of colonies on each of the following pairs of plates. What does each pair of results tell you about the experiment? (2 points)
a. LB+plasmid and LB-plasmid
b. LB/Amp-plasmid and LB/Amp/X-gal-plasmid
c. LB/Amp+plasmid and LB/Amp-plasmid
d. LB/Amp/x-gal +plasmid and LB/Amp/X-gal-plasmid .
Comparing the number of colonies on different pairs of plates provides insights into the experimental outcomes. The comparisons help assess the effects of adding plasmid DNA, antibiotics (such as Ampicillin), and chromogenic substrates (like X-gal) to the growth medium.
The results indicate successful plasmid uptake, antibiotic selection, and gene expression, providing information about the experimental success and the presence of desired genetic modifications.
a. LB+ plasmid and LB- plasmid:
Comparing the number of colonies on these plates allows us to assess the effect of adding plasmid DNA to the LB medium. If there are significantly more colonies on the LB+ plasmid plate compared to the LB-plasmid plate, it suggests that the plasmid DNA successfully transformed the bacterial cells and allowed them to grow. The presence of colonies on the LB+ plasmid plate indicates successful plasmid uptake and expression.
b. LB/Amp-plasmid and LB/Amp/X-gal-plasmid:
This comparison helps determine the impact of adding the antibiotic Ampicillin (Amp) and the chromogenic substrate X-gal to the LB medium containing plasmid DNA. If there are more colonies on the LB/Amp-plasmid plate compared to the LB/Amp/X-gal-plasmid plate, it suggests that Ampicillin successfully selected for bacterial cells that have taken up the plasmid. Additionally, if blue/white colonies are visible on the LB/Amp/X-gal-plasmid plate, it indicates successful expression of the lacZ gene, which encodes β-galactosidase.
c. LB/Amp+plasmid and LB/Amp-plasmid:
This comparison helps assess the impact of adding the antibiotic Ampicillin to the LB medium, regardless of plasmid presence. If there are significantly more colonies on the LB/Amp+plasmid plate compared to the LB/Amp-plasmid plate, it suggests that Ampicillin effectively selected for bacterial cells that have taken up the plasmid.
d. LB/Amp/X-gal+plasmid and LB/Amp/X-gal-plasmid:
This comparison focuses on the impact of adding both Ampicillin and X-gal to the LB medium containing plasmid DNA. If there are more colonies on the LB/Amp/X-gal+ plasmid plate compared to the LB/Amp/X-gal-plasmid plate, it suggests that Ampicillin effectively selected for bacterial cells that have taken up the plasmid. Furthermore, the presence of blue/white colonies on the LB/Amp/X-gal+plasmid plate indicates successful expression of the lacZ gene, which encodes β-galactosidase.
Overall, these plate comparisons provide information about plasmid uptake, antibiotic selection, and gene expression in bacterial cells, enabling insights into the success of the experimental procedures and the presence of desired genetic modifications.
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(a) oil spills in the ocean can negatively affect marine ecosystems. i. describe one environmental problem in a marine ecosystem that could result from an oil spill.
Oil spills can possibly kill the phytoplankton as well as the algae which rely on sunlight penetrating ocean water
An oil spill is basically the release of the liquid petroleum hydrocarbon into the environment, especially when released into the marine ecosystem, mostly due to human activity, and it is basically a form of pollution. The term is most commonly used to describe marine oil spills where the oil is released into the coastal waters or the oceans.
Oil spills can possibly kill the phytoplankton as well as the algae which rely on sunlight penetrating ocean water. Since the oil is dark and forms a layer above the water, it can prevent light from reaching these marine organisms. A drop in populations of producers also eventually harms the consumers.
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People discovered long ago that cross pollination of certain plant varieties could improve farm crops' flavor. Answering which question BEST helps people to produce crops with desired flavors?
A
How does cross pollination produce unique offspring with different flavors?
B
Which plants need to be selected for breeding to produce the best-tasting offspring plants?
C
Which genes in plants code for a sweet flavor?
D
How does artificial selection of crops affect surrounding crops?
Which plants must be chosen for breeding in order to generate the offspring plants with the best flavour are Cross-pollination of specific plant kinds was long known to enhance the flavour of farm produce.
What strategies do plants employ to promote cross-pollination?Plants have developed a variety of sophisticated strategies for luring pollinators. These techniques include trapping, mimicry, fragrance, food, and visual signals.
Explain your approach to preventing cross-pollination.In order to generate healthy seeds, plants that are wind- or insect-pollinated require pollination from blossoms on other plants (of the same or different types). You would need to plant various types at least 100 yards (91 metres) apart to prevent cross-pollination.
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4. Which human activity would (NOT) be classified as one that can harm
water source?*
O A. water pollution
B. waste of water resources
C. using sustainable ways to grow crops
Describe the pathway taken by these molecules of carbon dioxide from the muscle cells to the blood
Explanation:
The blood can transport carbon dioxide in three different ways. Plasma proteins or haemoglobin hold it in place, it is dissolved directly in the blood, or it can be converted into bicarbonate.
Carbon dioxide is primarily transported by the bicarbonate system. The carbon dioxide diffuses into the red blood cells. Inside, carbonic anhydrase converts carbon dioxide into carbonic acid (H2CO3), which is subsequently hydrolyzed into bicarbonate (HCO−3) and H+. The H+ ion binds to haemoglobin in red blood cells, and bicarbonate is transported out of the red blood cells in exchange for a chloride ion. It is called the chloride shift.
The bicarbonate leaves the red blood cells and enters the blood plasma. The lungs transport bicarbonate back into the red blood cells in exchange for chloride. The H+ dissociates from haemoglobin and combines with bicarbonate to form carbonic acid with the help of carbonic anhydrase, which then catalyzes the reaction to turn carbonic acid back into water and carbon dioxide. As a result, carbon dioxide is expelled from the lungs.
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Read each of the sentences that describe a phase of mitosis. Drag each sentence number onto the correct place on the diagram.
Sentence 1: The cytoplasm pinches in half.
Sentence 2: The centromeres of the duplicated chromosomes line up across the center of the cell.
Sentence 3: The cell grows and replicates its DNA and centrioles.
Sentence 4: The chromosomes which were distinct and condensed begin to spread out into a tangle of chromatin.
Sentence 5: The genetic material inside the nucleus condenses and the duplicated chromosomes become visible.
Sentence 6: The chromosomes separate and move along spindle fibers to opposite ends of the cell.
6,2,5,1,3,4
Read each of the sentences that describe a phase of mitosis. Drag each sentence number onto the correct place on the diagram.
cytokinesis
metaphase
interphase
anaphase
prophase
telophase
Sentence 1: The cytoplasm pinches in half is cytokinesis.
Sentence 2: The centromeres of the duplicated chromosomes line up across the center of the cell is metaphase.
Sentence 3: The cell grows and replicates its DNA and centrioles is interphase.
Sentence 4: The chromosomes which were distinct and condensed begin to spread out into a tangle of chromatin anaphase.
Sentence 5: The genetic material inside the nucleus condenses and the duplicated chromosomes become visible prophase.
Sentence 6: The chromosomes separate and move along spindle fibers to opposite ends of the cell id Telophase
Thus, Read each of the sentences that describe a phase of mitosis. Drag each sentence number onto the correct place on the diagram.
cytokinesis
metaphase
interphase
anaphase
prophase
telophase
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What will happen in the future if we keep on using our non-renewable resources?
The most well-known impact of using non-renewable energy sources is the emission of greenhouse gases such as carbondioxide gas etc.
What will happen if we continue to use non-renewable resources?We pursue to use of non-renewable resources, in specific, carbon dioxide and methane give to climate change. Different types of non-renewable energy fuels emit high levels of greenhouse gases.
Minerals is used for making metals which are also non-renewable natural resources. Nonrenewable natural resources take extended than a person's lifespan to be returned. In fact, Non-renewable energy can take millions of years to form. Fossil fuels such as oil, coal, and gas will not last forever.
So we can conclude that The problem with non-renewable energies is the ecological impact of non-renewable energies · The fuel of climate change.
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1. fatty acids2. amino acids3. phospholipids4. hydrogen5. peptide6. tertiary7. secondary8. rough endoplasmic reticulum9. ribosome10. Golgi apparatus11. vesicle
The production of antibodies inside the lymphocytes starts at the ribosome (organelle) by joining amino acids together, creating peptide bonds, and forming the primary level structure polypeptide. The polypeptide bends and folds tertiary in the Golgi apparatus (organelle), to form the next level of structure. For instance, the secondary level of structure is formed by hydrogen bonds to create alpha helix or beta-pleated formations.
In order for an antibody to be released into the blood, a fully formed antibody will move from rough endoplasmic reticulum (organelle) to another organelle named Golgi apparatus to sort and be processed for shipment out of the cell. Antibodies transport from organelle to organelle and to the plasma membrane in a vesicle, which is made out of fatty acids-phospholipids.
1. fatty acids
2. amino acids
3. phospholipids
4. hydrogen
5. peptide
6. tertiary
7. secondary
8. rough endoplasmic reticulum (organelle)
9. ribosome (organelle)
10. Golgi apparatus (organelle)
11. vesicle