DNA is composed of two strands of nucleotides. The bases of these nucleotides form pairs: Adenine with thymine and cytosine with guanine. The complementary strand is 3' - GCTAATCA - 5' .
What is the composition of DNA?DNA is the molecule in charge of carrying genetic information needed for the correct cell functioning.
This polymer is composed of several monomers joined by their extremes. Each monomer has a phosphate group, a sugar, and a base (adenine, guanine, thymine, or cytosine).
DNA is composed of a double, coiled monomeric strand. One of the strand's bases pairs the bases of the other strand (adenine must always pair thymine, while guanine must pair cytosine).
These strands are known as the coding strand and the template strand. During DNA replication, the molecule unwinds to separate the strands, and two new chains are synthesized.
So, what we need to know to answer this question is that bases pairing is as follows,
Adenine (A) ⇔ Thymine (T)
Guanine (G) ⇔ Cytosine (C)
5’ - CGATTAGT- 3’
3' - GCTAATCA - 5' ⇒ complementary strand.
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Using your understanding of the function of chloroplasts and specialized cells, infer why plant root cells lack chloroplasts.
(1 point)
© Root cells have two central vacuoles.
O Root cells have many mitochondria.
O Roots require fewer nutrients.
O Roots are underground and are not exposed to sunlight.
do you agree that sexual selection played a role in the development of the human mind?
Answer:
Yes, eventually, humans goes through trial and errors and grow up during the process fo finding their rightful mates.
Explanation:
A red blood cell placed in distilled water will swell due to the transport of —
Answer: osmosis
Explanation:
What effect does an increase or decrease in the PH of the cell cytoplasm have on protein and the ability to function?
Answer: It will result in negatively affecting the function of the protein itself.
Explanation: When pH changes in any way, it effects the hydrogen bonding, which is what is used for the tertiary and quaternary structures. This is what causes the proteins to change shape, which in result is a negative effect on the protein.
Part F: Create and Deliver Your Presentation Use your outline and the materials you've collected to create your presentation. It should contain 15 to 20 slides. Be sure to proofread and revise your writing to catch any errors in grammar, spelling, logic, or cohesion e. Remember that you must add speaker's notes as well as a works cited page at the end. Follow your teacher's instructions for delivering your presentation. Your teacher may ask you to record the presentation in the presentation software. Or you may be asked to present it to a live audience. Be sure to rehearse your presentation before you present or record it. Make sure you complete the presentation within the time allotted. Speak audibly and articulate your words clearly. Maintain eye contact with your audience or the camera throughout the presentation. Submit your presentation to your teacher along with this activity.
It establishes the general tone of your presentation; the opening is the most crucial section. Its main goal is to grab the audience's attention, usually within the primary 15 seconds. Before giving a presentation, outline your goals intimately, mastering and learning your topic. Creating the plan and considering the story. Ensure to plan and practice your oral presentation. During the presentation, act naturally. Connect together with your audience by demonstrating your passion. Give some thought to what your audience needs. Keep it simple, concentrate to your Main Point. Make eye contact together with your audience and smile. Start out strong. Confine mind the 10-20-30 Slideshow rule.
Deliver your presentation in front of an audience if your teacher requests it. Make certain to rehearse your presentation before you deliver it and ensure that you complete it within the time limits (5–10 minutes). When presenting, speak clearly and maintain eye contact together with your audience. Record your presentation if your teacher can't attend. PowerPoint enables you to record a video. Submit the finished video to your teacher along with this activity.
The opening, middle, and conclusions should be the three key components of your presentation. Presentation's main body should have your essential message weakened into three elements, each of which should be expanded into three sub-points. Valid information is often found in good presentations. Each bit of information has been extensively fact-checked and is always accurate.
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can you tell me what acne medication is commonly prescribed to teenagers but also appeared on the list of drugs prohibited during the first trimester of pregnancy
What has mass and takes up space? Question 3 options: weight volume space matter
How does scientists use information to make predictions in your own words and in a generalized manner?
Scientists create a broad principle or explanation to help anticipate future events using their understanding of past occurrences. The term "hypothesis" refers to the overall idea. Inductive reasoning is the category of reasoning that is involved (deriving a generalization from specific details).
How do scientist make predictions?A scientific prediction suggests the evidence that is in line with the hypothesis and can thus be used to the results of both current and previous experiments. As a result, even though these trials were carried out more than 200 years ago, we can make predictions about how they will turn out.
For the scientist, predictions serve as a point of reference. If predictions come true, the theory has been validated by the scientist. The hypothesis is disproved if the predictions are not confirmed. In either case, the scientist now has more understanding of the process being investigated.
Therefore, scientists create a broad principle or explanation to help anticipate future events using their understanding of past occurrences. The term "hypothesis" refers to the overall idea. Inductive reasoning is the category of reasoning that is involved (deriving a generalization from specific details).
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f three eggs are placed in samples of water with different amounts of sugar, then each will absorb a different amount of water over 24 hours.
In this question, the amount of water absorbed by an egg completely depends on the amount of sugar in which it placed. The amount of sugar stands alone and cannot be altered by other variables hence it is classified as an independent variable.
While the amount of water they absorbed can not stands alone and would be altered by variable like the amount of sugar. Hence, it is classified as the dependent variable.
Therefore, in this example, the different amount of sugar is categorized under the independent variable while the amount of water gets absorbed is categorized under the dependent variable.
pls help me out
Into which kingdom does each organism belong? Write the name of the kingdom on the line.
1) Blue-Green Alga
2) Extreme Microbe
3) Red Mangrove
4) Spiny Lobster
5) Giant Kelp
6) Tube Worms
7) Fungus
8) Diatom
Answer:
Blue-Green Alga: MoneraExtreme Microbe: Monera (Archae)Red Mangrove: PlantaeSpiny Lobster: Animalia Giant Kelp: PlantaeTube Worms: Animalia Fungus: FungiDiatom: Protistawhat causes the light to go off when there is a spark at the switch
Answer:
Basically the arc is loading, since the electricity jumps between the contacts
Explanation:
What are the individual ion contributions to the resting membrane potential of the cardiac pacemaker cells? Select all that apply.
The individual ion contributions to the resting membrane potential of the cardiac pacemaker cells include the following:
Greater concentration of sodium outside the cell.Greater concentration of potassium inside the cell.Calcium gradient with more calcium outside the cell.What is Resting membrane potential?This is defined as the potential of a cell when it is at a state of rest or the difference between the electric potential in the intracellular and extracellular matrices of the cell when there is no excitation.
Some ions which contribute to the membrane potential of cells include the following:
Na+K+Ca++ etc.In the resting membrane potential of the cardiac pacemaker cells, the concentration of K+ is higher inside the cell than outside while ions such as Na+ and Ca++ have higher concentrations outside than inside the cell.
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Why had the US and USSR worked well together before 1945?
A. The Soviet Union had pretended to be capitalist until 1945
B. The Communists did not take over until after the war
C. When Joseph Stalin took over, the relationship changed
D. Cooperation was necessary to fight Germany and Japan
Answer:D
Explanation:
How many atoms? * PbSO4
PbSO4 has 1 atom of Pb, 1 atom of S, and 4 atoms of O. So, in total it has 6 atoms.
The smallest component that makes up a chemical element is an atom. Atoms that are neutral or ionized are the building blocks of all solids, liquids, gases, and plasma. A normal atom is 100 picometers across, which is incredibly small.
Protons, which have a positive charge, make up the majority of it, while neutrons, which have no charge, form the remainder. All regular, naturally occurring atoms have protons, neutrons, and electrons that orbit them because they are heavy particles.
A sample's mass in grams should be divided by the periodic table's amu atomic mass, and the result should be multiplied by 6.02 x 1023, or Avogadro's number, to determine how many atoms are there. So, PbSO4 has 1 atom of Pb, 1 atom of S, and 4 atoms of O. So, in total it has 6 atoms.
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suppose you were to fly from chicago to charleston. what landform regions would you cross? how would the land change?
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Some of the landform regions that exist between Chicago and Charleston are:
the Blue Ridge, the Piedmont, the Sand Hills, the Inner Coastal Plain, the Outer Coastal Plain, the Coastal Zone, etcWith this in mind, the way the land would change as you make this journey from Chicago to Charleston would be a change from low hills to higher hills as Charleston is known for higher hills.
What is a Landform?This refers to the natural land feature on the solid surface of the Earth
Hence, we can see that Some of the landform regions that exist between Chicago and Charleston are:
the Blue Ridge, the Piedmont, the Sand Hills, the Inner Coastal Plain, the Outer Coastal Plain, the Coastal Zone, etcWith this in mind, the way the land would change as you make this journey from Chicago to Charleston would be a change from low hills to higher hills as Charleston is known for higher hills.
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Below is a photo of a particular kind of organism.
Based on its structure, this organism is most likely to be a___.
A. multicellular eukaryote
B. unicellular eukaryote
C. prokaryote
D. virus
Answer: C. Prokaryote
it looks the same
Question is in the image
Answer: The answer is C. Advances in technology influence new scientific research.
Explanation:
What is the main function of phospholipids in a cell?
A. form the cell membrane
B. produce energy for the cell
C. contain genetic information
D. increase the rate of reactions
Answer:
B. Produce energy for the cell.
As scientists continue exploring other planets and our solar system, they seek evidence to prove that life has existed. Which molecules should scientists look for?
Answer: They should look for elements and substances such as carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.
An easy way to remember these is to combine the first letters of the substances together, forming the word "CHONPS."
Explanation: They are essential to forming life, such as DNA, chemical reactions, etc.
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the following figure shows a typical phospholipid. suppose this molecule was incorporated into a cell membrane. which letter indicates the portion of the molecule that would be exposed to the aqueous environment.
The hydrophilic head group of phospholipids are exposed to the aqueous environment, therefore, the part labelled D would be exposed to the aqueous environment of the cell and its surroundings.
What are phospholipids?Phospholipids are lipids which contains a phosphate group in its structure.
Phospholipids are essential components of the cell membranes.
The structure of the phospholipids are such that they are amphipathic, having two ends with different polarities.
Phospholipids have a hydrophilic head group and a hydrophobic tail.
The hydrophilic head group is exposed to the aqueous environment of the cell and its surroundings whereas the hydrophobic tail region is found hidden away from the aqueous environment of the cell and its surroundings.
Considering the structure of the given phospholipid, the hydrophilic region is the part labelled D. Therefore, this part of the phospholipid would be exposed to the aqueous environment of the cell and its surroundings.
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Why don’t the two daughter cells made in mitosis have identical cytoplasm
Answer:
The cytoplasm is not identical within each of the daughter cells because the division of it is random.
Explanation:
As a basketball coach, determine which sensory input you would focus training your athletes in with reference to
the data. As a scientist, explain how the athletes' eyes, ears, and muscles are communicating within the nervous
system to react during a play using at least 4 vocabulary words to explain the outcome of the data.
Vocabulary
-Axon
-Cell Body
-Central Nervous System
-Dendrite
-Peripheral Nervous System
The somatic nervous system is also a part of the peripheral nervous system. One of its roles is to relay information from the eyes, ears, skin and muscle to the central nervous system (brain and spinal cord).The motor neurons release a chemical, which is picked up by the muscle fibre. This tells the muscle fibre to contract, which makes the muscles move. Neurons carry messages from the brain via the spinal cord. These messages are carried to the muscles which tell the muscle fibre to contract, which makes the muscles move.
What is the function of our central nervous system?The Central Nervous System is made up of the brain and spinal cord. We can say that it is located inside the axial skeleton, even though some nerves penetrate the skull or the vertebral column.
With this information, we can conclude that The central nervous system (CNS) is made up of several types of cells and tissues: Neurons are the most important cells in the brain. They are responsible for receiving and transmitting stimuli from the internal and external environment, enabling the body to perform appropriate actions and responses.
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provide examples to demonstrate the roles of perspective and situational awareness in the occurrence of the fundamental attribution error
Some examples of how the roles of perspective and situational awareness aid in the occurrence of the fundamental attribution error are:
When a boss chastises an employee for arriving late for work but comes late himselfWhen a teacher breaks a classroom rule, but punishes a student that breaks the same rule, etc.It is clear to see the role of perspective and situational awareness aid in the occurrence of the fundamental attribution error as this has to do with the perception of environmental elements as they relate to time or space
What is a fundamental attribution error?This refers to an individual's tendency to attribute another's actions to their character or personality.
Hence, we can see that Some examples of how the roles of perspective and situational awareness aid in the occurrence of the fundamental attribution error are:
When a boss chastises an employee for arriving late for work but comes late himselfWhen a teacher breaks a classroom rule, but punishes a student that breaks the same rule, etc.It is clear to see the role of perspective and situational awareness aid in the occurrence of the fundamental attribution error as this has to do with the perception of environmental elements as they relate to time or space
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is there a word that includes organism, ecosystem, population, community
Answer:
No
Explanation:
Well no there is not a word for all those words but those words are the different levels of ecology include- organisms, communities, population and ecosystem.
Laboratory Analysis:
Body: A single stem emerging from underground rhizome bearing needle-like leaves.
Size: 18 cm
Chromosomal Analysis: Plant body is diploid—chromosome number of 68.
Lignin test: Positive
Cuticle: Present
Leaves: Present—small, possessing 1 unbranched vein.
Roots: Present (fork at tips); contains vascular tissue.
Stem: Present (contain vascular tissue); some bearing sporangia
1. The organism would traditionally be classified into which Phylum?
a. Hepatophyta
b. Cycadophyta
c. Ginkophyta
d. Lycopodiophyta
e. Anthophyta
2. This organism is thought to be more closely related to members of which other phylum?
a. Bryophyta
b. Gnetophyta
c. Coniferophyta
d. Cycadophyta
e. Pteridophyta
From the laboratory analysis performed it can be inferred that the organism belongs to Phylum Lycophyte and the organism is closely-related related to Pteridophyte. Thus, correct options are D (lycopod) and E (Pteridophyte).
What are Lycophytes?Lycophytes are the vascularized plants, these have well-defined vascular tissue for the conduction of substances in the plant body.
Lycopods are small, green, leafy plants which have spores but no flowers. They are a little like mosses. The stems are short, vertically oriented, 2- or 3-lobed, and have secondary growth. The elongate, linear, ligulate leaves are borne in a dense terminal, spirally arranged cluster, and range in size from 5–50 cm.
The plants are also found to produce Lignin although it is restricted to angiosperms but it is present in lycopods. Therefore, correct options are D (lycopod) and E (Pteridophyte).
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Pick an organism in the list above and describe how one of its structures allows it to survive in its environment. (1 point)
Think about how one part of the organism's body is designed to do a specific job well.
Sun,salmon,maple trees, bears, plankton, whales, grass, cows, humans, shrimp, caterpillars, finches (small birds), hawks.
Behaviorally salmon will prevent overhydration (in freshwater) by consuming much less or no water, and having diluted urine (extra water than salt). salmon fry changes their pores and skin shade.
They increase camouflage markings referred to as Parr marks, which are dark bars throughout their bodies. The combination of light and dark helps them blend into the shadows on the movement- or lakebed so they're less seen to predators.
Maples trees develop quality in complete daylight, however, can develop in a spot with some color. these coloration bushes are adaptable to maximum soils, however, opt for a relatively wet but well-drained soil.
maximum bears have an effective survival solution: hibernation, a bodily nation in which the heart price, frame temperature, metabolism, and respiratory is diminished.
Phytoplankton has chlorophyll to seize daylight, and they use photosynthesis to turn it into chemical energy. They consume carbon dioxide and release oxygen. All phytoplankton photosynthesize, however, a few get additional electricity via ingesting different organisms.
Whales' bodies are particularly tailored to keep oxygen in their blood and muscle mass, instead of keeping it in their lungs as people do. Whales have rather high tiers of proteins known as hemoglobin and myoglobin, which save oxygen within the blood and muscular tissues.
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Shrimp
Pleopods or swimmerets are the names of the appendages, which are utilised for activities other than swimming. Others contain gills for breathing, while other species of shrimp utilise the first pair or two for insemination. Some shrimp species use them for brooding eggs.
The thorax and the head are the two halves of their bodies. The two halves are joined by a small abdomen and the cephalothorax. The carapace, which serves as the body's physical defence, is a tough covering. Together with its gills, the shrimp's mouth functions.
The gills let it to obtain oxygen from the surrounding waters while being protected by the hard external shell. Its strong shell also sprouts its legs, eyes, and rostrum. Shrimp have a pointed beak or snout, known as the rostrum, that protrudes from the top of their bodies to defend them from predators. Additionally, this beak acts as a stabiliser when swimming backwards and forwards.
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Which is the most likely function of a group of cells that contains a high number of chloroplast?
10. The atoms C, H, O makes up which of the carbon-based molecules below.
A. Carbohydrates and Protiens
B. Carbohydrates and Lipids
C. Nucleic Acids
D. Lipids
Answer: Lipids
Explanation:
. The atoms C, H, O makes up which of the carbon-based molecules below.
A. Carbohydrates and Protiens
B. Carbohydrates and Lipids
C. Nucleic Acids
D. Lipids
What do these organic compounds have in common?
methane (CH4 )
butane (C4H10)
Covalently linked strands of carbon atoms with hydrogen atoms attached constitute the basis of many organic molecules (a hydrocarbon backbone). This indicates that the existence of carbon and hydrogen atoms is a property shared by all organic molecules.
What common characteristics define organic?Organic substances are substances made of carbon. In addition to having hydrogen and carbon atoms, they can also have oxygen, nitrogen, or halogen atoms.
All life on Earth is made up of four chemical components. Organic compound, any of a large class of chemical compounds in which one or more carbon atoms are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen. Organic molecules contain carbon and hydrogen chemically linked to one another in long chains, with carbon serving as the backbone and hydrogen atoms attached to the carbon atoms.
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Which describes redshifts? Check all that apply.
The light source and observer move closer together.
Observed light shifts to a longer wavelength.
They indicate receding galaxies.
Observed light shifts to a shorter wavelength.
The light source and observer move farther apart.
They indicate approaching galaxies.
Answer:
Observed light shifts to a longer wavelength.
They indicate receding galaxies.
The light source and observer move farther apart.
Explanation:
Red light is the lowest frequency visible light, violet is the highest frequency (hence INFRA-red, as in below red and ULTRA-violet, as in above violet).
Redshift is an effect where we observe light (from space) that we'd otherwise expect to be higher frequency than observed.
Redshift is an effect very similar to Doppler's effect, where we hear lower (lower frequency) sounds when moving away from a sound source.
Because we're moving away from the light source (or the light source moves away from us). Similarily, when you're driving, you'll pass more cars going the opposite way than those going along with you.
So, when a galaxy recedes (and fast!) we'll observe the light frequency to be lower than the galaxy actually emits. Lower frequency = higher wavelength.
To conclude - any answer that relates to the light being lower frequency, or higher wavelength, or the observer and source moving apart are good answers, whereas those that suggest the opposite are bad answers.
