How many protons and electrons does magnesium have
The controlling structure of the cell that directs reproduction and determines structure and function of the cell is the
Determine whether each term on the left is described as haploid or diploid. then click and drag each to the appropriate category on the right.
muscular dystrophy is an inherited genetic disease that causes the muscles to what
atrophy, or breakdown
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How can fossils BEST help paleontologists and biologists classify organisms?
Answer:
Explanation:
A palentologists can be define as a scientists who studies the fossil. By studing the fossils they determine the form and features of primitive living organisms used to live on earth. On examining the features these organisms can be classified in different categories and their evolutionary history can be traced.
The Gulf of California is located on the Tropic of Cancer. At what position of Earth, will the sun be exactly overhead at the Gulf of California?
Position 1
Position 2
Position 3
Position 4
Answer: Option (D)
Explanation: Position D in the image represents the summer solstice. It is the condition when the sun is directly overhead the tropic of cancer (the gulf of California). It takes place on round 22nd of June every year, in which the norther hemisphere experiences summer solstice and the southern hemisphere experiences winter solstice.
The correct answer supporting the position is option (D).
Martha has been diagnosed as having vaginismus. besides intercourse, in what other scenario would martha experience the difficulty associated with this condition?
a. sexual arousal by men
b. masturbation to orgasm
c. urination
d. a vaginal examination
The Apache taxi company charges $2.50 to pick up a passenger and then adds $1.95 per mile. Issac was charged $27.46 to go from one city to another. If x represents the number of miles driven by the taxi, which linear equation can be used to solve this problem, and how many did Issac travel, rounded to the nearest tenth?
Which of the following best shows her primary structure relates to protein function
A.) proteins are sensitive to change in pH
B.) high temperatures cause proteins to denature
C.) The shape in chemistry of in enzyme’s active site determine its function
D.) Changing one amino acid in the protein hemoglobin causes sickle cell in anemia
In the presence of oxygen, we use __________ to fuel atp production from glucose. what process do plants use to fuel atp production from glucose?
The pointed tip of the heart that is directed toward the left hip is called the
Why are lipids able to function as protective barriers in cells?
Final answer:
Lipids function as protective barriers in cells due to their hydrophobic nature, forming phospholipid bilayers in cell membranes that prevent unregulated passage of substances while allowing selectivity through embedded proteins.
Explanation:
Lipids are able to function as protective barriers in cells because of their hydrophobic nature. Being largely nonpolar compounds, they consist predominantly of nonpolar carbon-carbon or carbon-hydrogen bonds, making them insoluble in water. This hydrophobic quality is crucial for their role in cell membranes where they form phospholipid bilayers that act as barriers, preventing the passage of many substances into and out of the cell. Furthermore, these lipids, including cholesterol, phospholipids, and other types of lipids like fats and waxes, serve various functions such as energy storage, insulation, and the composition of hormones. Specifically, the phospholipid bilayer in cell membranes is integral to maintaining a hydrophilic exterior and interior suitable for the aqueous cell environment, while also housing various proteins for selective substance transport.
What is the only connective tissue group that does not have a direct blood supply? *?
In a eukaryotic cell, transcription takes place _____. in the nucleus in the rough endoplasmic reticulum on free ribosomes on the cell membrane in the cytoplasm
In a eukaryotic cell, transcription takes place in the nucleus .Transcription is the process by which genetic information encoded in DNA is used to synthesize RNA molecules.
The nucleus is a membrane-bound organelle found in eukaryotic cells that contains the cell's DNA. Within the nucleus, DNA is organized into structures called chromosomes. Transcription involves the enzyme RNA polymerase binding to a specific region of DNA called the promoter. The DNA double helix unwinds, and RNA polymerase uses one strand of the DNA as a template to synthesize a complementary RNA molecule known as pre-mRNA.
The pre-mRNA molecule is then processed through a series of modifications, including the addition of a cap structure at one end and a poly-A tail at the other. Additionally, non-coding regions called introns are removed, and the remaining coding regions called exons are spliced together. These modifications produce a mature mRNA molecule that can be transported out of the nucleus and into the cytoplasm for further processing and translation.
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List five cell organelles and describe their function. Use complete sentences.
The nurse is caring for a client who has a tracheostomy tube with a high-volume, low-pressure cuff. what does the cuff prevent?
According to the scenario, the cuff that prevents the process is known as Mucosal necrosis.
When should you deflate the cuff on a tracheostomy?The cuff will definitely deflate the mechanisms of tracheostomy when neither mechanical ventilation nor a risk of gross aspiration is present. Another consideration is to change the patient to a cuffless tracheostomy tube. The definition of aspiration is when any food, liquid, or other matter passes below the vocal folds.
According to the context of this question, if an individual is used to inflate the cuff, he/she needs to inject air into the adaptor at the end of the pilot balloon. Inject the least amount of air needed in order to adequately create a seal around the tube. The amount of air necessary will vary depending on the diameter of the tracheostomy tube and the patient's trachea.
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Any substance ingested by a pregnant woman that can cause a fetal abnormality is called a ________
The region of the optic nerve lacking photoreceptor cells is known as the ________.
The blind spot, also known as the optic disc, is the region in the retina where the optic nerve exits the eye, and it lacks photoreceptors, creating a part in our vision where we cannot perceive light.
The region of the optic nerve lacking photoreceptor cells is known as the blind spot. Specifically, this region is called the optic disc, where the ganglion cell axons exit the retina to form the optic nerve. No photoreceptors are present at this location, resulting in an absence of vision for light that falls onto this part of the retina.
The fovea, by contrast, is the area of the retina with the greatest visual acuity and consists mainly of cone photoreceptors. Unlike the blind spot, the fovea allows for sharp images to be perceived due to its high density of photoreceptors.
why must nations sometimes work together to solve environmental problems
Nations must work together to solve environmental problems because environmental problems are; Global problems
Environmental pollution leads to degradation of the environment, because environmental pollution leaves negative effects on the physical and biological components of the environment.
Some of the Negative global effects of environmental pollution is the greenhouse effects which is caused by the indiscriminate release of ( CFC's ) into the atmosphere. therefore nations must work together to solve environmental problems.
hence we can conclude that Nations must work together to solve environmental problems because environmental problems are Global problems.
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Why did scientists come up with scientific names?
Smooth muscles are slow to relax and slow to contract. explain why this is and why this is important.
During a newborn assessment the nurse identifies that the temperature, pulse, respirations, and other physical characteristics are within the expected range. the nurse records these findings on the clinical record. legally, how should the nurse's action be interpreted?
An herbivore might eat all of the following except
A. Ants
B. Algae
C.ferns
D.leaves
Answer:
A. Ants
Explanation:
Herbivorous animals are those that consume live plants or part of them. In this way, ecologically speaking, they can play a role as predators, by removing individuals from the population; or parasites, for consuming certain plant structures, but without killing them. Accordingly, we can say that herbivores can eat algae, ferns and leaves, but do not feed on ants.
Considering these facts, herbivores are able to control some plant populations by reducing their growth and reproduction rates. For this reason, some insects with this feeding habit are used to control the growth of plantation pests.
​police officers often have high levels of __________, otherwise known as the stress hormone.
Hemophilia is a blood clotting disorder that is a sex-linked trait carried on the X chromosome. If a woman with hemophilia and a man without the disorder have two sons and two daughters, how many of their children would have hemophilia?
a.none
b.one
c.two
d.four
Spina ____________________ is a congenital defect that occurs during early pregnancy when the spinal canal fails to close completely around the spinal cord to protect it.
When needed for a source of energy fatty acids are broken down into?
Which condition is considered progressive rather than reversible?
During a psychiatric assessment, the nurse observes a patient's facial expression is without emotion. the patient says, "life feels so hopeless to me. i've been feeling sad for several months." how will the nurse document the patient's affect and mood?