It is important that the bonds between nitrogenous bases are weak as the bonds which are present between nitrogenous bases are hydrogen bonds which are weak bonds.
Which bonds are present between Nitrogenous bases?
Nitrogenous bases are the nitrogen-containing compounds which are the components of the nucleotides that are the monomeric units of DNA (deoxyribonucleic acid). Purines and pyrimidines are the two types of nitrogenous bases which are found in the DNA molecule.
Hydrogen bonds are responsible for holding the paired nitrogenous bases together in the DNA. Because, hydrogen bonds are the weak bonds that are present between the two strands of DNA. These bonds are easily separated, which is a characteristic that is important to DNA's function.
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which of the following is a limitation of a clinical trial? a. number of test tubes b. hospital costs c. amount of peer review d. amount of random assignment
Answer:
The most appropriate answer option is C. amount of peer review.
Explanation:
Clinical trial is a type of detailed study or research that is done for a certain test or treatment given to people about how safe and successful that treatment is.
For a clinical trial, the amount of peer review can prove to be a limitation as the trials mostly do not provide appropriate answers to the questions that are asked by the people from the same field.
Answer:
The answer is "hospital costs"
Which of the following choices is not an
effective solution to the energy waste related
to inefficient lighting?
a. using low-pressure sodium lighting sources
b. pointing lights on billboards and street
signs upward
C. placing light sources on time controls
d. shielding light to direct it downward
Answer: b is ineffective pointing lights on billboards and street signs upward
As scientists have investigated evolution from a variety of fields, they have found that some of Darwin's orginal ideas were inaccurate or incomplete. T
explanation provided by evolution was updated each time to reflect the new information they found. What does this suggest about the theory of
evolution?
It has become a stronger and clearer theory as new information is collected.
Answer:
b
Explanation:
Answer:
It has become a stronger and clearer theory as new information is collected.
Which is a trait of all seed plants?
Answer:
All seed plants share two characteristics. They have vascular tissue and use seeds to reproduce. In addition, they all have body plans that include leaves, stems, and roots. Most seed plants live on land.
Explanation:
Answer:All seed plants share two characteristics. They have vascular tissue and use seeds to reproduce. In addition, they all have body plans that include leaves, stems, and roots. Most seed plants live on land.
Explanation: i know cuz i know my boy
Which of these is one of the nitrogenous bases in DNA?
A. Proline
B. Leucine
C. Glycine
D. Thymine
Type 1 survivorship organisms are characterized by
A. All of the offspring live at least 10 years
B. They have lots of offspring and offer no parental care
C. They have very few offspring to provide lots of parental care to ensure survival
D. They have some parental care and a few survive and a few don’t
Answer:
c
Explanation:
Final answer:
Type I survivorship organisms, such as humans and most primates, are characterized by having fewer offspring and providing extensive parental care, with most offspring surviving into adulthood. The correct answer to the question is option C.
Explanation:
Type I survivorship organisms are characterized by having relatively few offspring and providing a significant amount of parental care to ensure the survival of these offspring. This strategy is observed in species where a high percentage of offspring survive their early and middle years, with death occurring predominantly among the older individuals. Humans, most primates, and certain large animals exhibit this survivorship curve. Option C in the question corresponds to this description, indicating that Type I species have very few offspring to which they provide lots of parental care to ensure survival.
Which of the following terms means a type of thermal injury to the skin caused by heat source?
A. Burn
B. Bulla
C. Bunion
D. Basal Cell Carcinoma
Final answer:
A burn is a type of thermal injury to the skin caused by a heat source, affecting different layers of skin and classified by degrees of severity - first-degree being the least severe and fourth-degree being the most severe.
Explanation:
The type of thermal injury to the skin caused by a heat source is known as a burn. Burns can occur as a result of exposure to extreme heat, radiation, or chemicals, and are classified into various degrees based on their severity. First-degree burns affect only the epidermis, the outer layer of the skin, and are considered superficial. These often heal within a few days without permanent damage. Second-degree burns are more serious, affecting both the epidermis and the dermis, causing blisters and soreness. Third-degree burns penetrate the full thickness of the skin, destroying both the epidermis and dermis, which can lead to significant complications including infection and require medical attention. Lastly, fourth-degree burns extend into the muscle and bone below the skin, and they are usually not painful because nerve endings are destroyed.
Let's say I hypothesize that plants need water in order to grow. I have a pack of pumpkin seeds that I wish to use in
the experiment. Explain in detail how I should conduct a controlled experiment to test my hypothesis.
In order to make a proper experiment and see does the plants, in this case the pumpkin seeds, need water to grow, there's several things that should be done. The pumpkin seeds should be planted in several pots, let's say eight pots. All pots should have the same size. The soil in all eight pots should be the exact same. Every pot should be exposed to the same amount of sunlight. Every pot should have the same temperature, thus they should all be kept in the same conditions. Half of the pots with pumpkin seeds will receive water, while the other half will not receive water at all. Every day checks should be made, and notes taken about each of the pots. If the pumpkin seeds in the pots that receive water grow, and the pumpkin seeds in the pots without any water don't, then we can say that the plants need water for their growth and survival.
Which of these is not a function of some membrane proteins?
A. Keeping the cell from dissolving
B. Transmitting messages to cell organelles
C. Catalyzing chemical reactions in the cell
D. Allowing ions to enter the cell
Answer:
A
Explanation:
D) Examples of membrane proteins include ion channels, receptor proteins, and proteins that allow cells to connect to each other.
C) Almost every chemical reaction in a cell is catalyzed by a class of proteins called enzymes
B) Membrane proteins are the nanomachines that enable membranes to send and receive messages and to transport molecules into and out of cells and compartments.
A) Proteins that are anchored by dissolving in the bilayer core are said to be integral to the membrane. Lipids: Lipid-soluble substances (e.g. alcohol, chloroform) can dissolve into the bilayer and thus cross the membrane.
Keeping the cell from dissolving is not a functions of some membrane proteins.
What are the functions of membrane proteins?Membrane proteins mediate processes that are fundamental for the flourishing of biological cells. Membrane-embedded transporters move ions and larger solutes across membranes, receptors mediate communication between the cell and its environment.
Integral membrane proteins are permanently embedded within the plasma membrane. They have a range of important functions. Such functions include channeling or transporting molecules across the membrane.
Membrane proteins provide temporary binding sites that guide cell migration and other cell-to-cell interactions. Some glycoproteins (proteins bonded to short chains of sugars) serve as identification tags that are specifically recognized by other cells.
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Match the functions to the cell types ? Contraction and relaxation. Conducting electrochemical signals Fighting diseases Carrying genetic material
Answer:
Following are the cell types related to the functions.
1- Contraction and relaxation are caused by smooth muscle cells. During contraction, smooth muscles become short in length and vice versa.
2- Neuron cells ( soma, axon, and dendrites) conduct electrochemical signals.
3- Lymphocytes, also known as white blood cells protect the body against different diseases.
4- In a cell, DNA is found in the chromosomes which are responsible for carrying the genetic material generation after generation.
Muscle cells contract and relax, nerve cells conduct electrochemical signals, immune cells fight diseases, and reproductive cells carry genetic material.
Explanation:The cell types that match the functions are as follows:
Contraction and relaxation: Muscle cells, such as skeletal muscle cells, contract and relax to create movement.Conducting electrochemical signals: Nerve cells, also known as neurons, transmit electrochemical signals to communicate information throughout the body.Fighting diseases: Immune cells, such as white blood cells, play a crucial role in defending the body against diseases and infections.Carrying genetic material: Reproductive cells, such as sperm cells and egg cells, carry genetic material to pass on traits to the next generation.Learn more about Cell Types and Functions here:https://brainly.com/question/14728688
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What cellular process released energy by breaking down glucose when oxygen is not available
The blue particles in this image are able to cross the cell membrane through
simple diffusion. How will they be transported?
Outside the Cell
Inside the Cell
O
A. The substances will move directly across the membrane from
outside the cell to inside the cell.
B. The substances will move through channels in the membrane
proteins from outside the cell to inside the cell.
O
C. The substances will move through channels in the membrane
proteins from inside the cell to outside the cell.
O
D. The substances will move directly across the membrane from
inside the cell to outside the cell.
The compounds will pass directly across the membrane from inside the cell to outside the cell based on this information (D).
What is the definition of simple diffusion?The flow of material through the biological membrane as a function of the concentration gradient is referred to as diffusion through the membrane.
Molecules and ions can move through the membrane from a high-concentration area to a low-concentration area.
As a result of this information, we can deduce that the substances will travel directly across the membrane from inside the cell to outside the cell (D).
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The blue particles will be transported across the cell membrane by simple diffusion, where they move from a higher concentration to a lower concentration without the use of energy. The correct option is A.
The blue particles in the image will be transported across the cell membrane through simple diffusion, which is a type of passive transport. During simple diffusion, substances that are able to move directly through the cell's lipid bilayer do so from an area of high concentration to an area of low concentration until equilibrium is reached. This process does not require energy from the cell. In the case of the blue particles, if they are small and nonpolar, they will move directly across the membrane from outside the cell to inside the cell if they are more concentrated outside the cell, or vice versa. Therefore, the correct answer is A. The substances will move directly across the membrane from outside the cell to inside the cell.
What is the genotype for the following phenoytpe: a male fruit fly that is heterozygous for eye color and homozygous dominant for wing size.
a
EeWW
b
Eeww
c
EeWw
d
WEwe
Answer:
A
Explanation:
Because for the eye colour it's a heterozygous that means a capital letter then a lower case.
For the wing size it's a homozygous meaning two capital letter.
Hope this helps?
Which of the following correctly organizes these genetic terms in order from smallest to largest?
chromosome, gene, nucleotide, DNA
nucleotide, gene, DNA, chromosome
DNA, nucleotide, gene, chromosome
DNA, nucleotide, chromosome, gene
Answer:
nucleotide, gene, DNA, chromosome
Explanation:
A nucleotide consists of a nitrogenous base, pentose sugar, and a phosphate molecule. Several nucleotides are joined together by phosphodiester bonds and make long DNA strands.
A part of DNA that codes for a specific protein product and thereby, regulates a specific genetic trait is called a gene.
DNA is packed with help of packing proteins into a thread like structures called chromosome.
Hence, the ascending order of these structures is: "nucleotide, gene, DNA, chromosome".
Answer:its B.nucleotide, gene, DNA, chromosome
Explanation:
The goal of basic science is:
A. to increase our understanding of general principles.
B. to improve a specific situation.
C. to solve a particular problem.
D. to use technology to improve quality of life.
Hey Chris, thanks for asking a question here on Brainly!
You Asked ➤ The goal of basic science is:
↴ OUR CHOICES ↴
A: To increase our understanding of general principles.
B: To improve a specific situation.
C: To solve a particular problem.
D: To use technology to improve quality of life.
------------------------------------------------------------------------------------
Answer ➤ A: To increase our understanding of general principles.
Explanation: One of the major goals of basic science is understand what the key principals that make it up. We learn how it functions and understand what make science part of our world.
••• HUH? WHY IS IT NOT THE OTHER CHOICES? •••
⇢ B and C: While basic science does help improve situations and solve problems, that is not the main reason why it is studied.
⇢ D: Science has helped us use more technology, but those levels are more advanced than the general basics.
I hope this answer is helpful to you, but please let me know if you have any other questions regarding it.
- Qamar
Answer: To increase our understanding of general principles.
Explanation:
When are hypothesis supposed in science?
Answer:
The basic idea of a hypothesis is that there is no pre-determined outcome. For a hypothesis to be termed a scientific hypothesis, it has to be something that can be supported or refuted through carefully crafted experimentation or observation.
An hypothesis in science is pretty much what you think your project will do in the results.
A___fault moves because it is unber tension
Answer:
A "normal" fault moves.
Explanation:
Hope my answer has helped you!
What happens when a nerve impulse reaches the end of a neuron?
Answer:
Cellular communication
Explanation:
At the end of a neuron, there is a space called the synaptic junction that helps it communicate with another neuron or organ in order to produce a response. When the impulse reaches the end of a neuron usually called the axon terminal, it causes the opening of voltage gated ion channels that causes the influx of ions inside the cells. This in turn will cause synaptic vessicles that contain neurotransmitters to move towards the membrane of the axon terminal and fuse with the membrane then open up to release the neurotransmitters into the synapse (space between the 2 neurons). When this happens, the voltage gated channels close. The neurotransmitters then bind to ligand receptors on the second recieving neuron that cause it to produce an effect like stimulate an organ or produce an impulse . After using up the neurotransmitters, they can be recycled or broken down into metabolytes that are used up by the cell.
What is the product of meiosis II?
Answer:
The product of meiosis II is four haploid gamete cells.
Explanation:
Answer:
Four haploid daughter cells.
Explanation:
Meiosis is the type of cell division in which four haploid daughter cells are produced by the division of the single parent cell . The meiosis is generally occurs in case of gametic cells.
Meiosis is divided into Meiosis I and meiosis II. The meiosis II includes the prophaseII, metaphaseII, anaphaseII and telophase II. The sister chromatids get separated in anaphaseII that result in the formation of the haploid cells. This division is also known as reduction division as chromosomes number are reduced to half. Total four cells are formed at the end of meiosis II.
Thus, the answer is four haploid daughter cells.
19. Which earthly phenomenon is represented by this image?
O A. Axial precession
O B. Circumpolar current
O C. Magnetic shifting
OD. Obliquity
The answer to this question is A. Axial precession.
Without an image, I can't provide a direct answer. However, I have defined the listed phenomena: Axial precession, Circumpolar current, Magnetic shifting, and Obliquity.
Explanation:Unfortunately, I cannot provide an accurate answer to your question as there is no image attached. Each of the options you provided refers to a unique earthly phenomenon. Axial precession is the movement of the rotational axis of an astronomical body, where it slowly traces out a cone. Option B Circumpolar current, also known as Antarctic Circumpolar Current, is the wind-driven surface current that is a singular feature of the ocean circulation in the Southern Ocean. Magnetic shifting, Option C, oftentimes refers to shifts in Earth's magnetic field. Lastly, Obliquity, Option D, is the angle between an object's rotational axis and its orbital axis.
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Fungi are classified into how many groups?
A.
1 group
B.
2 groups
C.
3 groups
D.
4 groups
How many chromosomes are in human
Answer:
46 Chromosomes.
Explanation:
Answer:
46 chromosomes are in human
A store manager timed Janette to see how long it would take her to fold and put away a sweater, a shirt, a pair of pants, and a scarf. It took her 26.1 seconds for the shirt, 24.3 seconds for the sweater, 32.8 seconds for the pants, and 18.2 seconds for the scarf. What was the average time it took Janette to fold and put away all four items?
During a catered lunch, an average of 4 cups of tea are poured per minute. The lunch will last 2 hours. How many gallons of tea should the caterer bring if there are 16 cups in one gallon?
Answer:
Part A= 25.35 seconds
Part B= 30 gallons
Explanation:
Part A
26.1+24.3+32.8+18.2=101.4
101.4/4=25.35
Part B
2 hours=120 min
4x120=480/16=30
In which specialized organ of the plant would these cells most likely be found
Answer:
a leaf
Explanation:
These cells will be found in leaf due to the presence of chlorophyll.
What type of cells does leaf have?There are two distinct kinds of photosynthetic parenchyma cells in leaves (palisade and spongy).
Mesophyll Palisade
A particular class of leaf cell created especially for photosynthesis makes up the palisade mesophyll. These chlorophyll-rich cells simply use all of their energy to produce as much sugar as they can. They discharge this sugar into the intracellular region, where it travels to the subsequent class of leaf cell.Spongy Mesophyll
The term "spongy mesophyll" refers to a loose matrix of structural mesophyll cells. Unlike the palisade cells, these cells are not precisely arranged into rows. Instead, they organize into networks and move materials to and from bundles of vascular cells. They can photosynthesize, just as palisade mesophyll leaf cells, but they also serve other purposes.learn more about leaf cells here:
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What happens to food material that cannot be digested?
It is mixed with chyme.
It is stored as nutrients.
It is eliminated as feces.
It is converted into bile.
Answer:
It is eliminated as feces.
Explanation:
It is eliminated as feces because it has to get out of your body.
hope this helps
Answer:
It is eliminated as feces
Explanation:
Food material that cannot be digested and absorbed are passed to the large intestine, this food, which is now Feces, is stored in the rectum until it is passed out of the body through the anus.
The element in group 3 through 12 of the periodic table are the
A.actinides
B.lanthanides
C.transition elements
D.noble gases
Answer:
transition metals
Hello There!
The element in group 3 through 12 of the periodic table are the "Transition Elements" this should also be known as the transition medals.
These metals have electrons that can participate in the formation of chemical bonds.
What stage of cellular respiration yields the most ATP?
electron transport chain
pyruvate production
NADH formation
glycolysis
Answer:
A.electron transport chain
Explanation:
Well i really don't have an explanation
but hope it helps
^U^
The electron transport chain yields the most ATP during cellular respiration.
The electron transport chain is the final stage of cellular respiration, occurring in the inner mitochondrial membrane of eukaryotic cells. In this stage, the high-energy electron carriers NADH and FADH2, which are produced in earlier stages (glycolysis and the citric acid cycle), donate their electrons to a series of protein complexes within the electron transport chain.
As electrons pass through these protein complexes, energy is released and used to pump protons (H+) from the mitochondrial matrix to the intermembrane space, creating an electrochemical gradient across the inner mitochondrial membrane. This gradient stores potential energy.
The electrons then reach the final protein complex, cytochrome oxidase, where they combine with oxygen (O₂) to form water (H₂O). This reaction is critical for aerobic respiration since oxygen is the final electron acceptor.
The flow of protons back into the mitochondrial matrix through the ATP synthase enzyme is driven by the electrochemical gradient, and this flow of protons generates ATP. The process of ATP synthesis coupled to the flow of protons is called chemiosmosis.
The electron transport chain is highly efficient in generating ATP since it harnesses the energy from the movement of electrons and the pumping of protons across the inner mitochondrial membrane. It is estimated that around 26-28 molecules of ATP are produced from each molecule of glucose during aerobic cellular respiration, with the majority of ATP generated in the electron transport chain.
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Which describes the habitat of a frog?
Answer: A frog usually lives in a warm, wet area.
Explanation: They are very common in swamps or places by a body of water.
Answer:
marshes and ponds
Explanation:
they like to live in an area that is damp or wet. they like to bury themselves in the mud.
the maintainnce of healthy bones depend on the balance of osteoblast and osteoclast activity, predict what would happen if osteoblast activity exceeds osteoclast activity?
Answer:
If the activity of osteoclasts(which demineralize bone) exceeded osteoblast activity(production of new bone), then the bone's mineral content(and thus its mass) would decline, making it weaker.
Explanation:
Osteoblasts and osteoclasts are two main cells participating in bone progressing. Osteoclasts is responsible for aged bone reabsorption and osteoblasts is responsible for new bone formation. The maintenance of helathy bones depend on the osteoblast and osteoclast activity.
If the osteoblast activity exceeds osteoclast activity, then would be harmulful effect on the bones, the bone mineral would be decline and the bones become weaker without osteoclast and osteoblast.
The body of water found at number 4 on the map above is the __________.
The body of water found at number 4 on the map above is the Lake Titicaca.
Lake Titicaca is the largest freshwater lake in South America and the tallest lake in the world. Titicaca, one of the less than 20 ancient lakes on Earth, is believed to be millions of years old. Lake Titicaca is 3,810 meters above sea level, between Peru in the west and Bolivia in the east.
It pumps more than 300 liters of water per second into Lake Titicaca. The mixture of sewage, chemicals, and heavy metals fuels the growth of life-threatening harmful algae. "This kind of algae grows naturally because of the number of nutrients in this place," said biologist Heyday Montecinos.
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