How many calories are provided by a food that contains 20 grams of carbohydrate, 8 grams protein, and 5 grams of fat?
a. 232
b. 378
c. 157
d. 258
e. 558?
Calories are used in defining the unit of the food that gives energy to the body. Food containing 8 grams of protein, 20 grams of carbohydrate, and 5 grams of fat provides 157 Calories. Thus, option c is correct.
What are calories?Calories are defined as the energy provided by the various molecules for the food that needs to be maintained so as not to get obese or underweight. Food containing carbohydrates, fats, and proteins is used to evaluate the calories.
The calories for the food containing this organic molecule are calculated as:
C= 4 carbohydrates + 9 fats + 4 proteins
Given,
Carbohydrate = 20 gm
Fats = 5 grams
Proteins = 8 grams
Substituting the values above as:
Calories = (20) × 4 + (5) × 9 + 4 × (8)
= 80 + 45 + 32
= 157 calories
Therefore, option c. 157 calories are present in the given food.
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Animal cells have which of the following characteristics? Select all that apply. no cell wall chloroplasts no large vacuole, only small ones cell plates and no centrioles in cell division cleavage furrows
Animal cells have the following characteristic: they have no cell walls. Animal cells have a plasma membrane that surrounds the cell and is made from a double layer of lipids, nucleus, cytoplasm, which is the internal area of the cell that isn’t occupied by the nucleus, mitochondria, which are the organelles that break down sugars and other compounds into cellular energy., ribosomes, lysosomes,...
When is the preparation of a wet mount slide for observation appropriate?
Name the three major parts of the axial skeleton
In giraffes, long necks (n), long legs (l), dark spots (d), and the ability to digest maize (m) are all dominant traits. what possible genotype could a long-necked, short-legged, light-spotted, maize-digesting giraffe have?
Marfan's syndrome is a disease associated with faulty manufacture of the extracellular protein fibrillin. since this is a component of elastic fibers, in which of the numbered cells would the damaged gene be expressed?
Gametes from two plant species combine and produce a haploid zygote, and that zygote develops into a haploid, hybrid plant. why is the hybrid plant sterile
The hybrid plant is sterile due to its haploid nature, as it possesses only a single set of chromosomes. This prevents it from undergoing regular meiosis and producing viable gametes, resulting in sterility.
Explanation:The hybrid plant is sterile because it is haploid, meaning it has only one set of chromosomes. As a result, it is unable to undergo regular meiosis to produce viable gametes. During meiosis, chromosomes pair up and exchange genetic material. However, in a haploid plant, there are no pairs of chromosomes to engage in this process. Due to the lack of chromosomal pairs and thus a lack of genetic diversity in the gametes, the hybrid plant is sterile.
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The sterility of a hybrid plant resulting from the combination of gametes from two different plant species is often attributed to a phenomenon known as hybrid sterility or gametic incompatibility.
Chromosome Number Incompatibility: Different plant species may have different numbers of chromosomes or different arrangements of genes on their chromosomes.
When gametes from two different species combine during fertilization, the resulting zygote may have an abnormal chromosome number or structure, leading to problems in meiosis during subsequent cell divisions.
Meiotic Irregularities: During meiosis, the process that produces gametes, chromosomes from each parent are supposed to pair and separate properly. In hybrids, meiotic irregularities may occur, resulting in the formation of non-functional or incomplete gametes.
These irregularities can lead to the production of aneuploid cells (cells with an abnormal number of chromosomes) in the hybrid plant.
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Complete question is:
Gametes from two plant species combine and produce a haploid zygote, and that zygote develops into a haploid, hybrid plant. why is the hybrid plant sterile ?
What arrangement of electrons would result in a nonpolar molecule
Nonpolar molecules can occur when elements share electrons equally, forming nonpolar covalent bonds. The orientation of bonds in a molecule can also cause overall nonpolarity if the electronegativity or bond moments cancel each other out.
Explanation:A nonpolar molecule occurs when electrons are shared evenly between atoms, as in a nonpolar covalent bond. An example is molecular oxygen (O₂), the electrons distribute equally between the two oxygen atoms. Another factor that influences polarity is the geometry of the molecule. If bond moments cancel each other out due to their arrangement or direction (vector sum equals zero), then we get a nonpolar molecule. For instance, Carbon Dioxide (CO₂) has polar bonds but the molecule itself is nonpolar because it is linear, with the polar bonds on opposite sides canceling each other's effects.
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Which of the following statements are true about common ancestors? Check all of the boxes that apply.
A common ancestor exists when two species are derived from the same ancestral species.
Common ancestors only exist within a single species.
When two organisms share a common ancestor it means that they are related to some degree.
The more common ancestors two species share, the more closely they are related. Common ancestors show evidence for evolution because they show that all life is related.
Answer:
-A common ancestor exists when two species are derived from the same ancestral species.
-When two organisms share a common ancestor it means that they are related to some degree.
-The more common ancestors two species share, the more closely they are related.
-Common ancestors show evidence for evolution because they show that all life is related.
Explanation:
The theory of evolution is currently the basis of biology. According to Darwinian theory, living beings have their origin in a common ancestor, and over time and through natural selection they were transformed and evolved into new types of species. Defined evolution as the process by which organisms are transformed over generations, characterized as a complex process, since an ancestor can be many descendants.
We have that the appropriate selections are
A common ancestor exists when two species are derived from the same ancestral species.
When two organisms share a common ancestor it means that they are related to some degree. The more common ancestors two species share, the more closely they are related. Common ancestors show evidence for evolution because they show that all life is related.Option A,C,D,E
Animal species
Generally living beings mutate over time and with the aid of natural selection the form new species
A common ancestor exists when two species are derived from the same ancestral species. When two organisms share a common ancestor it means that they are related to some degree. The more common ancestors two species share, the more closely they are related. Common ancestors show evidence for evolution because they show that all life is related.Option A,C,D,E
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The odor from a hospitalized client's draining wound permeates the room and is very overwhelming and distracting to the client and the staff. what intervention would be most helpful?
N the six steps of the classic scientific method created by galileo and bacon the 5th step is
Select which of the following statements are true about ions:
Two positively charged particles attract each other
A positively charged particle and a negatively charged particle attract each other
A positively charged particle and a negatively charged particle repel each other
Two negatively charged particles attract each other
Answer:
Charges of opposite sign attract one another
Charges of the same sign repel each other
so statement A positively charged particle and a negatively charged particle attract each other ,and Two negatively charged particles attract each other is the correct answer.
Explanation:
Hope it will help if not I only can say sorry
Why are pure democracies prone to the problem of faction?
Sensory impulses from the lungs are carried to the respiratory center by the
Where in the human body would you find cells with a large number of mitochondria? why?
PLz help me with this question!!!!!
Answer:
asexual reproduction
Explanation:
it starts off with a single nucleus and ends up with 2, there is no obvious chromosomes or spindle fibres to suggest meiosis or mitosis
A forest was completely destroyed by a volcanic eruption. All living organisms were killed. Then, due to the arrival of propagules carried by birds from nearby areas, certain plant species started growing in the forest. These species have started colonizing the forest because they could survive the harsh conditions of the forest. They also facilitated the growth of other species. What stage of succession is taking place in the forest? competition nudation ecesis reaction
Answer:
Competition.
Explanation:
In this place a secondary succession occurs that happens in an environment that was previously occupied by other communities and that suffered some type of disturbance, in this case, the area was devastated by a volcanic eruption.
A secondary succession begins with the "nudation" phase which is the succession after a disturbance and the emergence of a site devoid of life. It continues with the "migration" that is the arrival of propagules to the environment.
Then comes the "ecese" which is the establishment and growth of the first pioneer plants. It continues with "competition" in which the establishment of new species causes competition for space, light and nutrients.
In terms of biological function or process, what do the solid arrows shown in Model 2A represent?
Solid arrows in the models typically represent direct interactions or processes such as regulatory activations, substrate binding, electron movement, and carbon fluxes in biological systems. They indicate the direction of process flow and are used to depict regulatory networks, biochemical reactions, and synthetic pathways.
In terms of biological function or process, the solid arrows shown in different models represent various types of interactions and processes. Direct interactions such as regulatory steps, substrate binding, or energy changes are examples of these functions. The solid arrows often indicate the direction of process flow, such as activation in regulatory networks, electron movement in biochemical reactions, substrate or ion transport across a membrane, natural carbon fluxes in ecosystems, or direction of chemical and biological pathways for synthesizing macronutrients. Positive interactions or activations are typically indicated by an arrow pointing from the activator to the target, as seen in signal transduction pathways.
Many insects, fish, and mammals release certain chemical messengers to signal reproductive readiness. What are these messengers called?
A. Hormones
B. Pheromones
C. Enzymes
A patient with ___________ may appear to be in respiratory arrest, even though he or she is breathing.
a. a massive stroke
b. vomitus in the mouth
c. hypothermia
d. severe blood loss
How can scientific tools, such as graduated cylinders and triple-beam balances, assist scientists?
Scientific tools like graduated cylinders and triple-beam balances assist scientists in order to measure the volume of the liquid and mass of any substance more accurately and precisely.
What do you mean by Scientific tools?Scientific tools may be defined as the types of tools or instruments that are significantly utilized in numerous scientific purposes like the collection of accurate data and information as well as in the study of both natural phenomena and theoretical research.
A triple beam balance is an instrument that is utilized for measuring the mass of any substance very precisely. Such types of devices generally have a reading error of ±0.05 grams.
While graduated cylinders are utilized for measuring the volumes of liquids. Such types of tools are not intended to be used for mixing, stirring, heating, or weighing.
Therefore, scientific tools like graduated cylinders and triple-beam balances assist scientists in order to measure the volume of the liquid and mass of any substance more accurately and precisely.
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How does accuracy differ from precision in a scientific measurement ?
Which layer of soil is least likely to be penetrated by plant roots? a. O (organic matter) b. A (topsoil) c. B (subsoil) d. C (parent rock)
Answer: d. C (parent rock)
Soil horizons are the layers lying parallel to the surface or subsurface layers of soil. These horizons are formed in the process of soil horizon. These sequence of soil horizons is collectively called as soil profile.
The layer or soil horizon, which is least likely to be penetrated by plant roots is C horizon. The C horizon is a layer of soil, which consists of huge aggregates of parent rocks, which are unweathered or partially weathered, lying deep in the bottom of the soil profile. It does not contain organic matter. Also, the texture of the soil is not fine, instead hard rocks are present. Therefore, this layer of soil cannot be penetrated by plant roots.
Israelite law demanded scrupulous care in the treatment of the blood of slain animals. what reason for this is given in leviticus?
Identify one general effect of overuse of an environmental resource.
Overuse of environmental resources results in environmental degradation, where resources are exploited at unsustainable rates, leading to a decline in their quality and availability.
One general effect of overuse of an environmental resource is environmental degradation. This occurs when the unsustainable exploitation of resources, such as over-harvesting or intensive farming, leads to a decline in the quality and availability of those resources. For example, continuous over-fishing can reduce fish populations to the point where they cannot replenish themselves, transforming a renewable resource into a non-renewable one.
In what form does the human body store excess sugar? In what form do plants store excess sugar?
I AM SO CONFUSED...HELP?
The human body stores excess sugar as glycogen, mostly in the liver and muscles. On the other hand, plants retain their excess sugars as starch in specific organs like tubers or bulbs.
Explanation:The human body and plants have a unique way of managing excess sugar, which is useful for future energy needs. In humans, the body stores excess sugar in the form of glycogen.
This process occurs within the liver and muscles. Conversely, in plants, sugar is stored as starch.
This starch is often held within special organs like tubers or bulbs and can be converted back into sugar when the plant needs energy.
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A major unit of the genetic code is called a(n) _____.
A. chromosome
B. genome
C. RNA
D. gamete
Answer:
A
Explanation:
Tranquilizers like xanax work to diminish anxiety symptoms by stimulating the receptor sites for __________, thereby driving down neuronal activity at those sites.
One way of tranquilizers to diminish anxiety symptoms is by having to stimulate the receptor sites for the GABA or also known as the gamma amino butyric acid. By stimulating this, it will allow the neuronal activity to drive down.
what societal needs were addressed by science in the ancient world
Like in present, many of the ancient civilizations studied biology. They also came to know about the natural phenomenon and utilized that information to meet the requirements of the society. The herbal medicines were used by Asian civilizations, also the South American civilizations created agricultural methods like irrigation and crop domestication.
The Greek civilizations are well-known in making substantial contributions to the emergence of life science. They are accredited with developing the fundamental guidelines of modern science. School of medicine was established during 400 BCE by the Greek physician Hippocrates. Even the first classification for living species is credited to the Greek philosopher Aristotle.
Complex sugars are called _____.
A.monosaccharides
B.disaccharides
C.polysaccharides
Answer: The correct answer for the fill in the blank is C) Polysaccharides.
Complex sugars are called polysaccharides, which are formed when more than two simple sugar are linked together. The simple sugars are linked by glycosidic bond.
Example- Glycogen is a storage polysaccharide, which is formed by the repeating units of glucose ( simple sugar).
On the contrary, monosaccharides ( single sugar like glucose) and disaccharides ( two sugars like lactose) are simple sugar as they are made up of one and two units of sugar respectively.
Thus, the correct answer is C) Polysaccharide.