Anne has been observing human embryos in different stages. She wants to study the gastrula phase. How will she find it? by looking for the presence of the neural tube and the notochord in the embryo by looking for the presence of the germ layers and the primitive gut in the embryo looking for the presence of the heart and lungs in the embryo
Answer:
She will find it by looking for the presence of the germ layers and the primitive gut in the embryo
Explanation:
If she wants to see the gastrula she must know that it is formed by
the gastrulation process. This is the process by which the embryo acquires three germ layers (ectoderm, mesoderm and endoderm) and acquires an axial orientation. Germ cells are formed from the migration of mobile populations. Anne would observe the primitive gut cavity becaue it is the endoderm and forms the rudiment of the animal’s future gut and many of its associated digestive organs and glands.
Why does having a genetically diverse population make a species more likely to survive a change to the environment?
Answer:
The population will have more possible adaptions. ///APEX
Explanation:
Liza had scarlet fever that was not properly treated. now, liza's kidneys do not filter her blood effectively. what structure in liza's kidneys has been primarily affected by her untreated disease?
Put in order from least complex (1) to most complex (4). atom, organ,tissue,cell
Lipids are not soluble in polar solvents and include a variety of substances such as
Lipids are not soluble in polar solvents and include a variety of substances such as waxes, fats, oils, hormones etc.
Further Explanation:Lipids Lipids are among the four major bio-molecules, others being nucleic acids, proteins and carbohydrates.They are composed of hydrocarbons and are important building blocks of structure of living organisms.Examples of lipids include; oils, fats, some vitamins(A,D,E,K), waxes, hormones, etc.Properties of lipids They are insoluble in polar solvents such as water. This is because being non-polar molecules then they can not dissolve in polar solvents due to the presence of non-polar region which brings about hydrophobic effect.They are highly soluble in non-polar solvents such as chloroform, benzene and acetone. This is because of large non-polar regions or hydrophobic regions in lipid molecules.Functions of Lipids. Production of energy and storage Insulation and protection; through the layer of fat known as adipose tissue below the skin.Structural components, such as cell wall structure Production of hormones such as estrogen, testosterone and progesterone. etc.Keywords: Bio-molecules, lipids, properties of lipids, function of lipids.
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Subject: Biology
Topic: Macro-molecules
Sub-topic: Lipids
Discuss the connection between viruses and cancers, giving possible mechanisms for viruses that cause cancer.
The presence of __________ in a woman's blood or urine confirms that the woman is pregnant.
Which autoimmune disease is characterized by a decreased number of acetylcholine receptors in the neuromuscular junction?
What period during which both the male and the female reproductive system matures is called?
Explain why a concentration gradient across a membrane represents potential energy.
A concentration gradient across a membrane represents potential energy because it reflects the difference in the concentration of ions or molecules on either side of the membrane.
Because of this gradient, there is a chance that the chemicals will diffuse from a region of higher concentration to one of lower concentration.
When the gradient is employed to promote movement, the potential energy that is stored there can be used to carry out tasks like propelling biological processes or moving materials over the membrane.
A type of white blood cell that engulfs foreign organisms and infected, damaged, or aged cells, and that is particularly prevalent during the inflammatory response is a
Write down two restrictions you know about for alcohol and tobacco.
Why would it be impossible to extract dna from cooked foods?
Final answer:
Cooked foods undergo denaturation of DNA and other cellular components due to high temperatures, causing DNA molecules to separate and degrade, which renders them unusable for DNA extraction and subsequent analysis.
Explanation:
It would be impossible to extract DNA from cooked foods primarily due to the denaturation of DNA that occurs during the cooking process. When food is cooked, the high temperatures cause the DNA molecules to denature, which means the double-stranded structure of the DNA is disrupted, resulting in the separation of the two strands. Additionally, the physical and chemical structure of the surrounding proteins and other cellular components also change, usually resulting in their irreversible denaturation and aggregation. This denaturation and aggregation can lead to the shearing of DNA into shorter, often unusable fragments.
For recombinant DNA procedures to be successful, a pure DNA sample must be obtained. However, cooking can cause not only DNA but also other cellular components to degrade or alter in such a way that they cannot be isolated without significant contamination, if at all. Proteins, which play a critical role in the cell, lose their characteristic three-dimensional structure when cooked and can no longer perform their biological functions. This protein denaturation also contributes to the destruction of any potential microbial contaminants.
Cooking can also result in the breakdown and cross-linking of other essential molecules that can interfere with obtaining a clean DNA sample. Therefore, due to these significant alterations in the molecular composition induced by high temperatures, extracting intact and functional DNA from cooked foods is impractical and often impossible.
When a hostname is configured through the cisco cli, which three naming conventions are part of the guidelines?
When under the influence of alcohol, muscle ___________ is slow and errors are made in interpreting speed?
Which muscle tissue is used for voluntary movement and bears striations?
What controls the release of chyme from the stomach to the highlighted structure?
The single most abundant protein in the body is ________.
Albumin is the most abundant protein in the body, performing key functions like transporting hormones and fatty acids, buffering pH, and maintaining osmotic pressures. Proteins, made up of amino acids in a linear sequence, are abundant in living systems and perform a wide range of functions.
Explanation:The single most abundant protein in the body is albumin. This protein accounts for most of the osmotic pressure of plasma and is the most abundant plasma protein. It is synthesized in the liver and constitutes about half of the blood serum protein. Albumin performs a variety of vital functions such as transporting hormones and fatty acids, buffering pH, and maintaining osmotic pressures in the body.
Proteins in general are one of the most abundant organic molecules in living systems, displaying a diverse range of functions. These can include structural, regulatory, contractile, and protective roles, or serving in transport, storage, or membranes. Proteins may also function as toxins or enzymes. Irrespective of their function, all proteins are polymers of amino acids arranged in a linear sequence.
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An algal bloom of dinoflagellates that causes fish kills is called the
1. Describe two types of technology your parent(s) or caregivers use to help care for or support you. How do you benefit from this? Describe how parents can learn about new technology to help with parenting.
Answer:
Technology used by my parent(s) or caregivers to take care of me are
Phone
CCTV Cameras
Smart machines and equipment
Explanation:
Technology 1
When I was a kid , my parents have kept a care tacker to handle me while they go for working. With the help of technology like phone enabled CCTV cameras, my mother used to keep a watch on me and my care giver.
Technology 2
My parents use fast, instruction based and smart equipment's in kitchen and for other household so that all work can be done automatically once the instructions are given to them. Thus , My work in kitchen or any other place reduces to hell lot of extent because of technology used by my parents
The term for fungi that decompose dead organic matter is?
A biology teacher wants students to remember the various components of a cell (nucleus, cytoplasm, cell membrane). considering what research tells us about long-term memory storage, the teacher would be well advised to help students encode information about the cell
Biology teachers aid students in encoding long-term memory of cell components by conveying the significance of the plasma membrane, cytoplasm, and nucleus, which are integral to cellular function.
A biology teacher aims to help students remember the various components of a cell including the nucleus, cytoplasm, and cell membrane. To enhance long-term memory storage, it's crucial to understand that cells are the fundamental units of life. Every cell has a plasma membrane, which acts as a barrier and regulator for substances entering and exiting the cell. Inside the cell, the cytoplasm is a gel-like substance where cellular activities occur, and it houses organelles such as ribosomes responsible for protein synthesis. The nucleus, often considered the 'command centre' of the cell, contains DNA, which is the genetic blueprint for the cell's function and production of materials.
Flowers are collections of reproductive and sterile tissue arranged on a stem tip in a tight array with very short ______
internodes
im 100% sure
During the first phase of the ovary cycle, the ______ matures within a follicle.
Oily or fatty ingredients that prevent moisture from leaving the skin are:
Oily or fatty substances that prevent moisture loss from the skin are sebum, containing lipids and fatty acids, natural esters in fats and oils acting as a barrier, and unsaturated fats or oils rich in unsaturated fatty acids.
Explanation:Oily or fatty ingredients that prevent moisture from leaving the skin are sebum, which is produced by sebaceous glands in the skin. Sebum is composed of lipids and fatty acids that create a barrier on the skin's surface to prevent water loss and inhibit microbial growth. Furthermore, on the skin's surface, the fatty acids create a dry, salty, and acidic environment that is resistant to breakdown by enzymes.
Moreover, substances like esters form the essential ingredients of natural fats and oils. They are the result of the reaction between carboxylic acids (such as palmitic acid, stearic acid, and oleic acid) and trihydroxyl alcohol, glycerine. Esters are also found in oily substances that provide a barrier that prevents the skin from losing moisture.
Lastly, unsaturated fats or oils, rich in unsaturated fatty acids, commonly found in plant origin, also play a significant role in retaining moisture in the skin. Known examples are olive oil, corn oil, and canola oil, which are liquid at room temperature due to the bend or 'kink' in their fatty acid chains which prevents tight packaging.
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What are metric units
Which portion of the ear is responsible for sound transduction?
The cochlea is the portion of the ear responsible for sound transduction.
Explanation:The portion of the ear responsible for sound transduction is the cochlea. The cochlea is a spiral-shaped, fluid-filled structure that converts sound vibrations into electrical signals that can be interpreted by the brain. It contains specialized cells called hair cells which are responsible for this transduction process.
The cochlea is a spiral-shaped, fluid-filled structure in the inner ear responsible for the conversion of sound vibrations into neural signals that can be interpreted by the brain. It contains specialized hair cells that detect different frequencies of sound and send signals to the brain via the auditory nerve. This process is essential for our ability to hear and perceive sounds.
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In the five-kingdom classification system, all prokaryotes belong to the kingdom Monera. Which of the following best explains a reason why prokaryotes were separated into different domains, Eubacteria and Archaea?
A.Archaea contain a single DNA loop, while Eubacteria contain double-stranded, helical DNA.
B. Unlike Eubacteria, Archaea are capable of surviving in extreme environments.
C.Unlike Eubacteria, Archaea do not have a membrane-bound nucleus.
D. Archaea contain RNA, while Eubacteria contain both DNA and RNA.
Answer:
Option A
Explanation:
The DNA structure of these species i.e Eubacteria and Archaea differ from each other.
The DNA of an archae is called as plasmid which is nothing but the single DNA loop while a Eubacteria (like all prokrayotes) consists of genome made up of single, double-stranded DNA molecule. The region that comprise of this genetic material is known as nucleoid. The bacterial chromosome has several proteins and RNA molecules on it
Both arcahe and eubacteria have cellwall and hence they are able to survive in extreme climatic conditions.
Archae has DNA while Eubacteria has both DNA and RNA
Both Archae and Eubacteria are prokaryotes, therefore they do not have membrane-bound nucleus
Hence, option A is correct
Is a straw a good model for showing the malleability of copper?
Answer:
No, because straw is Cylinder shaped
Explanation:
A person is experiencing the symptoms of malnutrition but is eating regularly. This could indicate a problem with which layer of the alimentary canal, and why? Submucosa, because this layer performs peristalsis Submucosa, because this layer absorbs nutrients from the bloodstream Muscle layer, because this layer performs peristalsis Muscle layer, because this layer absorbs nutrients from the bloodstream
Answer:
Option B, Submucosa, because this layer absorbs nutrients from the bloodstream
Explanation:
If a person is eating regularly then it is pretty much sure there is no case of “eating less food” that could have caused malnutrition. Hence, the problem of malnutrition has occurred due to some functional issues such lack of proper exchange of food resources through the alimentary canal.
The sub-mucosal layer of alimentary canal is responsible for sharing the food nutrient by pouring it in blood.
Thus, option B is correct.