The function of tunica externa is to ________.
Which of the following is an example of dessecation?
seaweed floating on the surface of the ocean
a fish swimming out to deeper water during low tide
a sand dollar drying out during low tide
a crab being washed out to sea during high tide
What did Mendel do that made his predictions so accurate?
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Describe three characteristics of a sperm cell.
Obstruction of the trachea by a piece of food can lead to:
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How do the light reactions provide energy for the dark reactions?
(Be sure to name any important molecules that are used)
The mutation resulting in sickle cell disease changes one base pair of dna so that a codon now codes for a different amino acid, making it an example of a ________.
Which situation suggests that an experiment has reliable results? A. The experiment uses a very simple procedure. B. The experiment can be repeated with the same outcome. C. The experiment generates ideas for new experiments. D. The experiment supports the hypothesis.
Final answer:
An experiment has reliable results when it can be repeated with the same outcome, which demonstrates replicability—a key aspect of the scientific method that builds confidence in the findings. The situation suggesting that an experiment has reliable results is: B. The experiment can be repeated with the same outcome.
Explanation:
The situation that suggests an experiment has reliable results is when the experiment can be repeated with the same outcome, which is option B. This concept is known as replicability or repetition, and it is a fundamental principle in scientific research. Replicability ensures that the experiment was conducted correctly, and the conclusions drawn from the results are reasonable. It indicates that the observed effects are due to the experimental treatment and not random chance or other variables. Listing the apparatus and method also help in ensuring that other researchers can repeat the experiment to verify results, improve it, or conduct variations on the experiment. The scientific method, including the design of experiments, is geared towards obtaining results that can be replicated, which builds confidence in the findings and supports the conclusions drawn from the research.
Is a molecule that brings amino acids to the ribosome during translation. __________ is a molecule that brings amino acids to the ribosome during translation. mrna t-rna rrna dna?
Transfer RNA (tRNA) is a molecule that brings amino acids to the ribosome during translation by recognizing the codons on mRNA and matching them with the correct amino acid.
Explanation:Transfer RNA (tRNA) is a molecule that brings amino acids to the ribosome during translation. tRNA recognizes the codons on mRNA and matches them with the correct amino acid. It has an anticodon on one end that complements the codon on the mRNA, and a binding site for a specific amino acid on the other end.
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When the sun heats up the surface of a puddle of water, the water
The sun's energy causes puddles of water to undergo evaporation, turning the water into vapor which enters the atmosphere and can lead to precipitation, an essential part of the water cycle.
When the sun heats up the surface of a puddle of water, the process that occurs is known as evaporation. This energy from the sun causes the surface water to change from liquid to gas form, resulting in water vapor. This vapor then accumulates in the atmosphere, can lead to cloud formation, and ultimately, precipitation such as rain or snow. This process is a critical component of the water cycle, which includes the continuous movement of water on, above, and below the surface of the Earth.
In simpler terms, the energy from the sun will cause puddles to gradually disappear as the water becomes vapor and joins the water cycle. This evaporation can happen not only to puddles but also to other bodies of water like lakes, streams, and oceans. The rate of evaporation increases with higher temperatures and depends on the amount of moisture already present in the air.
Most starch stored in cells of a potatoe is composed of molecules that originally entered cells as
Answer: Sugars
Explanation:
The process by which the plants make food is photosynthesis. This is done in order to produce carbohydrates which is in the form of glucose when formed.
The potato is stored form of starch in the plant body. The sugars in the plants is first used then it is stored in the plant body for further use.
The starch in the plant body is stored at different places in the plant body. In the roots, stems and flowers.
All these were in the form of sugar in the plant body just after photosynthesis.
What chemical is responsible for the initial breakdown of carbohydrates?
What are the four classes of biological macromolecules?
which food item is likely to be most acceptable to a child?
What is the correct order of steps in muscle contraction?
________________ is/are always present in an individual's blood. however, in the absence of infection, it is in an inactive form. ________________ is/are always present in an individual's blood. however, in the absence of infection, it is in an inactive form. cytokines kinins histamine prostaglandins
What is the name given to the three bases in a messenger rna that bind to the anticodon of trna to specify an amino acid placement in a protein?
Describe the process of diffusion, including a detailed explanation of equilibrium.
Which characteristic of the genetic code lowers the likelihood of mutation?
Degeneracy of the genetic code is a key characteristic that reduces the negative impact of mutations by allowing similar amino acids to be encoded by multiple codons, which differ by only one nucleotide, thus maintaining protein functionality.
Explanation:Characteristic of the Genetic Code That Lowers the Likelihood of Mutation
One characteristic of the genetic code that reduces the likelihood of mutation having a negative impact is degeneracy. Degeneracy means that multiple codons can code for the same amino acid. Often, these codons differ by only a single nucleotide. If a mutation occurs, changing one of these nucleotides, the amino acid coded for might remain the same, or it might change to a similarly behaving amino acid. This aspect of the genetic code helps maintain protein functionality despite mutations. Additionally, amino acids with similar chemical properties tend to be encoded by similar codons, which further helps to conserve protein structure and function in the event of mutations.
Moreover, the genetic code is unambiguous and universal, which are additional important characteristics that illustrate its robustness. Each codon corresponds to one specific amino acid (or a start/stop signal), and this unambiguity prevents confusion during protein synthesis. The universality of the genetic code across all known living organisms highlights a shared evolutionary origin and ensures consistency in how genetic information is translated into proteins.
In long term why is it important to reduce demands for timber
What was one of the ways thy people of ancient times classified plants and animals
Which of the following occurs in the matrix of a mitochondrion? ETC glycolysis Krebs cycle carbon fixation
Which of the following occurs in the matrix of a mitochondrion?
A) ETC
B) glycolysis
C) Krebs cycle<=YOUR ANSWERD) carbon fixation
Drew has musically talented grandparents and great-grandparents. in addition to having musical genes, drew is raised in a musically enriched environment. he develops into a talented composer. which branch of psychology would explain this interaction between genetics and environment?
Tropical savanna is being converted to ________ biome because of overgrazing, loss of grasses and erosion.
During the adolescent growth spurt, what is the last part(s) of the body to grow?
What is one function of plant stems?
Answer:
The plant stem has a function in transportation of water from the roots to the leaves. The xylem vessels present in the stem conducts water by the application of adhesive forces. The water molecules gets adhere to the walls of the xylem vessels, the water is being taken up by the capillary action against the force of gravity exerted by the earth.
Proteins are long chains of amino acids, but they don’t stay as just long winding chains. What happens to their shape and why? Explain
Proteins fold into three-dimensional shapes after synthesis due to various chemical interactions within the protein and the properties of the surrounding cellular environment. This process is crucial because the shape significantly determines a protein's function. Misfolding could cause dysfunctional proteins and lead to diseases.
Explanation:After proteins are synthesized as long chains of amino acids, they do not remain as linear structures but rather fold into specific three-dimensional shapes. This process, called protein folding, is crucial because the shape of a protein determines its function within an organism. Factors like chemical interactions within the protein, the protein’s sequence of amino acids, and the surrounding environment of the cell, contribute to the protein folding pattern. The bonding and interactions between the amino acids within the protein, such as hydrogen bonds, ionic bonds, and van der Waals interactions, lead the protein to take on a stable structure, which is often a 3D shape, like a globular or fibrous form. Misfolding of proteins can lead to the dysfunction of the protein, resulting in diseases like Alzheimer's or Cystic fibrosis.
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A first-time mother informs the nurse that she is unable to breastfeed her newborn through the day as she is usually away at work. she adds that she wants to express her breast milk and store it for her newborn to have later. what instruction would be correct to offer the mother to ensure the safety of the stored expressed breast milk?
One of the first recorded uses of forensic entomology being used in a criminal case happened in what time period?
900 BCE
1000 AD
1850s
1970s
The first recorded use of forensic entomology in a criminal case is said to have occurred in 1235 AD. Hence, the correct option is B.
This historic event happened in a Chinese text titled The Washing Away of Wrongs by Song Ci, which describes how an investigation determined which farm implement killed a person by observing which one attracted flies. Though none of the options provided in the question accurately match this historical event, the question may be referring to a commonly cited example of forensic science application in history, emphasizing the long-standing relationship between law enforcement and the study of insects.
Which group contains only organs in a human body?
The group that contains only organs in a human body is: heart, brain, and skin, major role of heart in our body is pumping blood from the lungs to different of the body sections.
What are different organs in human body?In the initial stage, the deoxygenated blood gathered in the right atrium and pushed to the lungs via the right ventricle through a valve called tricuspid valve.
Following the expiration of carbon dioxide, the clean, newly oxygenated blood is gathered in the left atrium and transmitted via the mitral valve to the left ventricle, where it is subsequently transferred to the body's tissues.
The pulmonary semilunar valve allows blood to move from the right atrium to the right ventricle.
Therefore, the pulmonary vein transfers the oxygenated blood to the left atrium, where it is then sent to the left ventricle, where it is then moved by the aortic semilunar valve to the aorta and finally to the capillaries.
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