Answer:
Ion pumps can be distinguished from ion channels on the basis that ion pumps actively transport ions against a concentration gradient, while ion channels allow ions to passively flow down a concentration gradient.
Explanation:
Which figure depicts a transverse plane? Select one:
a.l
b. ll
c. None
d. lll
b. A plane dividing the body into upper and lower sections is the best representation of a transverse plane in relation to the human body. It cuts across the body horizontally, perpendicular to the longitudinal axis, separating the upper portion (superior) from the lower portion (inferior). So, option B is the right choice.
A transverse plane is a plane that cuts across the body horizontally, perpendicular to the longitudinal axis.It divides the body into upper (superior) and lower (inferior) sections.Therefore, option b. (a plane dividing the body into upper and lower sections) is the best representation of a transverse plane in relation to the human body.
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The complete question may be like:
Which of the following best represents the orientation of a transverse plane in relation to the human body?
a. A plane dividing the body into front and back sections.
b. A plane dividing the body into upper and lower sections.
c. A plane dividing the body into left and right sections.
d. A plane dividing the body into diagonal sections.
How does the size of the fetal face relate to the cranium? how does this compare to the adult skull?.
The size of the fetal face is one-third the size of the fetal cranium while the adult skull is two-thirds the size of the adult cranium.
The face of a fetus is foreshortened and overshadowed by its cranium. Also, his mandible and maxilla are very tiny. On the contrary, the adult cranium is comparatively smaller and his facial bones are comparatively larger than the cranium.
Cranium is the outer protective layer of the skull. It comprises 8 cranial bones and 14 facial bones. It has two main parts: cranial roof and cranial base. The cranial roof consists of frontal, occipital and two parietal bones. The cranial bases also comprises these three types of bones and also includes sphenoid, ethmoid and temporal bones.
The cranial bones are connected by connective tissues during infancy to allow their growth and form one piece. The primary function of cranium includes protecting the brain and providing a link for the attachment of facial muscles.
The size of the fetus ' face increases as it matures and thus has a very small face compared to its cranium. The cranium in the adult is all grown up and does not grow further. It has a larger size than that of a fetus. The bones in the adult cranium are also fixed while those in a fetus are still growing.
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How are forensic pathology and entomology connected? Explain in 10-20 sentences
Forensic pathology and entomology are connected through the field of forensic entomology, which involves the study of insects and other arthropods in relation to legal investigations. Here are the key points explaining their connection:
1. Forensic pathology focuses on determining the cause and manner of death by examining human remains, while forensic entomology uses insects found on or near the remains to gather evidence.
2. In cases where the time of death is uncertain, entomological evidence can provide valuable insights by studying the insect life cycles and succession patterns.
3. Forensic entomologists collect insect samples from the crime scene, including eggs, larvae, pupae, and adult insects, and analyze their species, development stages, and distribution.
4. By studying the developmental stages of insects on the body, entomologists can estimate the postmortem interval (PMI), which is the time since death occurred.
5. The type of insects present on the remains can also provide information about the location where death occurred or body movement after death.
6. Forensic pathologists work closely with forensic entomologists to consider entomological findings when determining the time and circumstances of death.
7. Insect activity, such as the presence of specific species attracted to decomposing remains, can help indicate if a body has been moved or tampered with.
8. Forensic entomologists may also analyze the presence of drugs or toxins in insects found on or near the body, aiding in the investigation of poisoning cases.
9. Both forensic pathology and entomology play crucial roles in criminal investigations, providing complementary evidence to reconstruct the circumstances surrounding a death.
10. The integration of forensic pathology and entomology findings can enhance the accuracy of PMI estimates, leading to more reliable forensic conclusions in court.
11. The expertise of both forensic pathologists and entomologists is often required to testify in legal proceedings and assist in the criminal justice system.
12. Forensic entomology can be particularly useful in cases involving decomposed or skeletonized remains, where traditional methods of determining the time of death may be inadequate.
13. Additionally, entomological evidence can help identify cases of neglect, abuse, or improper disposal of human remains.
14. The knowledge and research in entomology, including insect behavior, ecology, and life cycles, contribute to the advancement of forensic science as a whole.
15. Collaboration between forensic pathologists and entomologists allows for a multidisciplinary approach to death investigations, providing a more comprehensive understanding of the evidence at hand.
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Several species of warblers live together in a forest habitat. Each species feeds in separate zones of spruce trees, consumes different combinations of insects, and nests at somewhat different times. These birds are able to minimize direct competition for limiting resources through _____.
Several species of warblers live together in a forest habitat. Each species feeds in separate zones of spruce trees, consumes different combinations of insects, and nests at somewhat different times.
These birds are able to minimize direct competition for limiting resources through resource partitioning. Resource partitioning refers to the division of limited resources, such as food or nesting sites, among competing species in an ecosystem. Competition for these limited resources can be intense, with some species competing more strongly than others to obtain them.
This competition can have negative effects on the populations of competing species, potentially leading to declines in the abundance or diversity of certain species. Each species of warbler has evolved to occupy a unique niche in the forest ecosystem. These birds feed in separate zones of spruce trees, consuming different combinations of insects. This specialization enables them to avoid direct competition for food.
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The following is found in fungal cell walls but not in animal cell membranes, and is typically targeted by antifungals. A. chitin B. lipid bilayer C. cytoplasmic membrane D. all of the above are found in animal cell membranes
The correct answer is A. chitin. Chitin is a polysaccharide that is found in the cell walls of fungi, but not in the cell membranes of animals. It is an important component of the fungal cell wall and provides structural support and protection for the cell. Antifungals targeting chitin, such as azoles and echinocandins, are effective against a wide range of fungal pathogens.
Option B is incorrect because lipid bilayers are a characteristic of the cell membranes of animals, including fungi. Option C is incorrect because the cytoplasmic membrane is a structural and functional membrane that encloses the cytoplasm of animal cells and is found in fungi as well as animals. Option D is incorrect because all of the options listed (chitin, lipid bilayer, and cytoplasmic membrane) are found in animal cell membranes, and it is not possible to choose more than one correct answer.
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PLEASE HELP PRETYY PLEASE
Answer:
p
Explanation:
any # answer is validasapp
Answer:
#6
Explanation:
Radioactive dating technique
To confirm the ages obtained with magnetic records, and get an absolute age of the seafloor, scientists use the radioactive dating technique. When the lava solidifies at the ridges to form the new seafloor, radioactive elements coming from the mantle are trapped in it.
at what level on axial images is the svc formed by the merger of the brachiocephalic veins? a. above the heart b. at the same level as the heart c. below the level of the heart d. it is not the brachiocephalic veins that merge to form the svc.
Axial images are the SVC formed by the merger of the brachiocephalic veins at b. at the same level as the heart.
The large and significant vein known as the superior vena cava (SVC) transports the body's deoxygenated blood to the right atrium. The superior and middle mediastinum contain it. The venous return of blood from structures above the diaphragm is handled by the superior vena cava.
At the level of the right atrium of the heart, the two brachiocephalic veins combine to form the superior vena cava (SVC). The SVC is a large vein that brings deoxygenated blood back to the right atrium of the heart from the upper body.
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absorption of nutrients by intestinal cells occurs by all the following mechanisms except a. sustained absorption. b. passive absorption. c. active absorption. d. facilitated absorption.
Absorption of nutrients by intestinal cells occurs by all the following mechanisms except sustained absorption, thus the correct option is (a)
Additionally, the gut actively absorbs amino acids with the aid of an ionic gradient made possible by the hydrolysis of ATP. The small intestine absorbs glucose with the aid of active absorption.
This happens because of a sodium ion gradient that is created as a result of the hydrolysis of ATP. The production of chylomicrons aids in the absorption of fatty acids. The fatty acids are transported into the lacteals of the lymph channel by the chylomicrons as they are immediately absorbed through the villi. The lymph carries it to the adipocyte cells.
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Lysosomes are derived from _____ and function in _____.
(A) microtubule organizing centers ... storage of ATP
(B)symbiotic bacteria ...extrachromosomal inheritance
(C)the Golgi apparatus and rough endoplasmic reticulum ...digestion of worn-out organelles
(D)mitochondria ... anaerobic respiration
Lysosomes are the derivatives of the Golgi apparatus and rough endoplasmic reticulum and function in the digestion of worn-out organelles.
Lysosomes are the single membranous cell organelles that are involved in the digestion of various substances. They can digest food particles, waste products, foreign invaders as well as the damaged or dead cells of the body.
Golgi apparatus is the cell organelle involved in the packaging and sorting of the proteins and other substances into their respective destination. The structure of the Golgi is composed of various flat cisternae stacked together in a row along with the vesicles associated with it.
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what are the 3 main function of cells
Answer:
they are very essential in our life.
Explanation:
1)They are the building blocks of our life because
they help us to perform all living activities like respiration, excretion, reproduction , etc.
2)They help to generate energy in the body.
3) They provide support and structure to all parts of the body.
(carbohydrates, lipids, proteins, and nucleic acids). How does form and function
relate to enzymes?
Where does fertilization take place in the female?
Answer:
Fallopian tube
Explanation: A pregnancy starts with fertilization, when a woman's egg joins with a man's sperm. Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. If the fertilized egg successfully travels down the fallopian tube and implants in the uterus, an embryo starts growing.
Developed countries need to replace modern medicines with natural healing herbs because millions of people in China and India are already doing so. This is an example of a(n) argument.
circular reasoning
begging the question
argumentum ad hominem
bandwagon
Citizens must support reducing global climate change or all the world's major economies will crash. This statement is an example of a(n) argument.
bandwagon
argumentum ad hominem
false dichotomy
hasty generalization
Developed countries need to replace modern medicines with natural healing herbs because millions of people in China and India are already doing so. This is an example of a(n) bandwagon argument.
The statement "Citizens must support reducing global climate change or all the world's major economies will crash" is an example of a false dichotomy argument. A false dichotomy is a logical fallacy that presents two options as if they were the only ones possible, when in reality there are more alternatives. It can be seen in the above-mentioned statement as it presents only two choices, either citizens must support reducing global climate change, or the world's major economies will crash.
However, there could be other alternatives or solutions to this problem that are not being considered. In contrast, the argument "Developed countries need to replace modern medicines with natural healing herbs because millions of people in China and India are already doing so" is an example of a bandwagon argument.
A bandwagon argument is a type of logical fallacy that suggests that something is correct or right because a lot of people are doing it. In this case, the argument suggests that developed countries should also switch to natural healing herbs because millions of people in China and India are already doing so.
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ABC
1. The model is missing two labels. Locate where each of the following processes are being illustrated and
label them on the diagram. Write a short description of the processes.
Answer:
The correct answer is : photosynthesis (between plant and the atmospheric CO2) and cellular respiration (between deer and the atmospheric CO2).
Explanation:
1. photosynthesis
Plants and photosynthetic organisms such as few bacteria and algae in the presence of sunlight to combine carbon dioxide (C02) from the atmosphere with water (H2O) to form food in the form of sugars/carbohydrates. These end products of the process store energy. This process is known as photosynthesis.
2. Cellular respiration
It is a somewhat inverted process of photosynthesis as cellular respiration requires oxygen and releases CO2 in the atmosphere. It is the released oxygen that is used by most other organisms for cellular respiration
What does it mean for animal habitats to become fragmented?
Answer
Habitat fragmentation is defined as the process during which a large expanse of habitat is transformed into a number of smaller patches of smaller total area isolated from each other by a matrix of habitats unlike the original (Fahrig, 2003).
Explanation:
Is this what you are looking for
A cirular disk has surface charge denaity 12bC/cm 2
Part A What will the surtace charge density be if the radius of the disk is doubled but its total charge remains the same? Express your answer with the appropeiate unite.
The new surface charge density, when the radius of the disk is doubled but the total charge remains the same, would still be 12 C/cm^2. Surface charge density refers to the amount of electric charge per unit area on the surface of an object.
In order to find the new surface charge density when the radius of a circular disk is doubled while keeping the total charge constant, we can use the formula for surface charge density: Surface charge density = Total charge / Surface area. We calculate the surface area of the original disk using the formula: Surface area = π * (radius)^2. Given that the surface charge density is 12 C/cm^2, we can write the equation: 12 C/cm^2 = Total charge / (π * (radius)^2). Now, if we double the radius of the disk, the new surface area will be: New surface area = π * (2 * radius)^2 = 4π * (radius)^2. Since the total charge remains the same, we can set up the equation: 12 C/cm^2 = Total charge / (4π * (radius)^2). In order to find the new surface charge density, we rearrange the equation: Total charge = 12 C/cm^2 * 4π * (radius)^2. Since the total charge remains constant, we substitute this value into the equation: 12 C/cm^2 * 4π * (radius)^2 = Total charge / (4π * (radius)^2). By canceling out the common terms, we obtain: 12 C/cm^2 * 4π * (radius)^2 = Total charge. Simplifying further, we get: 48π * (radius)^2 = Total charge Therefore, the new surface charge density would still be 12 C/cm^2.
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True or false, during the light reactions, H2O is split, the H+ combine with CO2
Answer: false
Explanation:
During the light reactions of photosynthesis, water is split and the hydrogen ions (H+) produced are used to generate ATP and NADPH, which are then used in the subsequent carbon fixation reactions to combine with CO2 to produce glucose and other organic compounds. The splitting of water during the light reactions is an important step in the overall process of photosynthesis, but the hydrogen ions produced are not directly used to combine with CO2.
What is a claim? (what does it answer?)
Answer:
A claim is mostly used in an Argumentative essay and it answers the topic or the prompt of an essay. For example,you can choose a side if you agree or don't agree.
Hope this helps.
Explanation:
1. In a 1000 of African people, 4% of the population is born with sickle cell anemia. What percentage of the population possess the heterozygous advantage
The percentage of the population that possesses the heterozygous advantage is 0.32 (2pq). It is a principle known as the Hardy Weinberg equilibrium.
Hardy Weinberg equilibriumThe Hardy-Weinberg equilibrium is a principle in population genetics that states that allele and genotype frequencies in a population will remain constant across generations in the absence of different evolutionary forces.
The equation of the Hardy Weinberg equilibrium is p² + 2pq + q² = 1, where p² is the dominant homo-zygous frequency, q² is the recessive homo-zygous frequency, and 2pq is equal to the heterozygous frequency.
In this case,
q² = 0.04 >> q = √0.04 = 0.2p + q = 1 >> p + 0.2 = 1 >> p = 0.8According to the Hardy Weinberg equilibrium, the number of heterozygous is equal to 2pq.
In this case,
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Discuss the factors that could fail the process of dough rising
(6marks)
Answer:
The yeast is no longer active, Climate conditions, too much liquid, Wrong type and amount of yeast, Not adding or using too little salt, Insufficient baking time and Wrong oven temperature.
Explanation:
The yeast is no longer active, Climate conditions, too much liquid, Wrong type and amount of yeast, Not adding or using too little salt, Insufficient baking time and Wrong oven temperature are the factors that could fail the process of dough rising. For rising of dough, the environmental conditions and materials that is used in dough must be present in optimum range or quantity.
What is photosynthesis? Please help :)
Answer:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Explanation:
Answer:
photosynthesis is the process of making food by green plants using sunlight,water, carbon dioxide and minerals.
It is possible for a mix up to occur between fictitious and factual information. please select the best answer from the choices provided t f
It is a true statement that a mix up can occur between fictitious and factual information.
Fictitious versus factual informationA fictitious information is one that is not backed up by evidence. It is one that is simply not true. An information that is a fact is one that can be verified and is actual.
In this case, it is a true statement that a mix up can occur between fictitious and factual information.
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Fermentation is a chemical reaction that occurs in the
Choose...
. Because it is
Choose...
, fermentation
Choose...
oxygen. Compared to cellular respiration, lactic acid fermentation generates
Choose...
ATP and is less efficient.
Answer:
Fermentation is a chemical reaction that occurs in the
cytoplasm .
Because it is
aerobic
, fermentation
does not require
oxygen. Compared to cellular respiration, lactic acid fermentation generates
much less
ATP and is less efficient.
Explanation:
Fermentation can be defined as a chemical reaction that typically occurs or takes place in the cytoplasm of both prokaryotic and eukaryotic living cells.
An anaerobic reaction refers to a biological and chemical reaction that doesn't require oxygen such as glycolysis and fermentation.
Hence, because fermentation is anaerobic; it does not require the use of oxygen.Compared to cellular respiration, lactic acid fermentation generates much less adenosine triphosphate (ATP) and is less efficient.During cellular respiration, more high-energy intermediates are generated that can be oxidized to make adenosine triphosphate (ATP) than are generated through lactic acid fermentation.
Generally, lactic acid fermentation is less efficient and it produces much less adenosine triphosphate (ATP) when compared with cellular respiration.
In conclusion, the most appropriate and correct word/phrase to fill in the blanks are:
1. Cytoplasm.
2. Anaerobic.
3. Does not require.
4. Much less.
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What property of water is important in keeping our body temperature constant (homeostasis).
1. specific heat
2. adhesion
3. universal solvent
4. cohesion
Answer:
1. Specific Heat
Explanation:
Water has the capacity to regulate the internal temperature of the body in response to the external temperature. Sweat is the main means by which water prevents the human body overheating when the temperature outside it is very high. The evaporation of sweat brings a loss of calories, in the form of heat.
Answer: 1. specific heat
Explanation:
what is required of a scientific study for it to be considered a controlled experiment?
A comparison of at minimum two groups, one of which is given a particular element of interest & the other is not. All auxiliary variables are kept constant inside a controlled experiment so that they cannot affect the outcomes.
A controlled study that gets no therapy, a phoney treatment, or the usual course of treatment. Control, independent and dependent variables, constant variables, random assignment, and manipulation are the elements of an experimental design. A lab test is a valid experiment carried out under predetermined circumstances in which only one (or a small number of) variables are altered at a time while all other variables are maintained constant. All auxiliary variables are kept constant inside a controlled experiment so that they cannot affect the outcomes. A positive control that receives either the usual therapy, a false treatment, and no treatment is necessary for controlled research. Participants are assigned at random to verify that the groups are equal.
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Describe the connection between the respiratory and circulatory systems
Answer: The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
Answer:
The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
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Explanation:
Where does the second stage of cellular respiaration occur
Calories from saturated fats and/or added sugars in foods that have little or no nutritional value, such as sausages and ice cream, are called:.
Calories from saturated fats and/or added sugars in foods that have little or no nutritional value, such as sausages and ice cream, are called Empty Calories.
Calories can be defined as the amount of energy extracted from the food which an individual eats throughout the day. According to dietary guidelines, a young person [20-25 years old] must intake between 1,600 and 3,000 calories per day.
Foods such as sausages, ice cream, pizza, and soft drinks have a high amount of empty calories because solid fats and added sugars are used in their manufacturing to add flavors and make the food more appealing but they have no nutritional value.
The amount of empty calories a person intakes should be decreased by avoiding such food items and drinks.
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The __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ carries low oxygen blood to the lungs and brings high oxygen blood back to the heart.
Answer:
Pulmonary blood vessel
Explanation:
The pulmonary blood vessel carries low oxygen blood to the lungs and brings high oxygen blood back to the heart.
More specifically, the pulmonary artery carries low-oxygen blood to the lung from the right ventricle of the heart. The blood becomes oxygenated in the lung and the oxygen-rich blood is taken back to the left atrium of the heart by the pulmonary vein.