Answer:
DNA
Explanation:
What percentage of the population can determine their blood type from
saliva, tears,sweat, or milk? (Numerical answers only) thanks
About 80% of the population can determine their blood type from saliva, tears, sweat or milk. These are known as secretors, and they refer to the fact that antigens present in the blood can also be found in bodily fluids like saliva.
What are antigens?Your immune system uses antigens as markers to determine whether or not something in your body is hazardous. Viruses, bacteria, cancers, and healthy bodily cells all include antigens. Antigen testing is carried out to identify viral infections, keep an eye on specific illnesses, screen for them, and ascertain a donor's compatibility with a transplant.
What are secretors?The term "secretor status" describes whether water-soluble ABO blood group antigens are present or absent in a person's body fluids, including saliva, tears, breast milk, urine, and semen. People are classified as secretors or non-secretors depending on whether they secrete certain antigens in their body fluids.
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Which of the following is not a good method in examining fossils anatomical features of
living organisms?
O a. Homologous structures
O b. Vestigial structures
O c.
Index fossils
O d. Analogous structures
Answer:
d. Analogous structures is not a good method in examining fossils anatomical features of living organisms.
Explanation:
Analogous structures are physical characteristics that are similar in different organisms due to convergent evolution, rather than being inherited from a common ancestor. While analogous structures can provide valuable information about the environment and adaptations of living organisms, they are not helpful in examining the fossils of ancient organisms because they do not reflect the evolutionary relationships between different species. Homologous structures, vestigial structures, and index fossils are all useful methods in examining fossil anatomy, as they can provide insights into the evolutionary relationships and characteristics of ancient organisms.
A deer eats a leaf from a tree and gets energy from sugar molecules in the leaf. Which two organelles are required to make this process possible? Pls help thank u so much
Two organelles that are required to make the process of the deer obtaining energy from sugar molecules in the leaf possible are the mitochondria and the chloroplasts.
What is the function of mitochondria and chloroplast?Mitochondria are organelles found in the cytoplasm of eukaryotic cells and are responsible for generating the majority of the cell's energy. They do this through a process called cellular respiration, in which sugar molecules are broken down and the energy released is used to produce molecules of adenosine triphosphate (ATP), which the cell can then use as a source of energy.
Chloroplasts are organelles found in the cells of plants, algae and some other organisms that absorb light energy and convert it into chemical energy. They are only found in the cells that have green pigments called chlorophyll. Chloroplasts are the site of photosynthesis, the process by which plants and other organisms convert light energy into chemical energy by using carbon dioxide and water to produce glucose and oxygen.
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Two organelles that are required to make the process of the deer obtaining energy from sugar molecules in the leaf possible are the mitochondria and the chloroplasts.
What are Organelles?The majority of the energy produced by eukaryotic cells is produced by mitochondria, which are organelles that can be found in the cytoplasm of these cells.
Through a process known as cellular respiration, sugar molecules are broken down and the energy released is used to form molecules of adenosine triphosphate (ATP), which the cell can then use as a source of energy.
In the cells of plants, algae, and certain other species, there are organelles called chloroplasts that collect light energy and transform it into chemical energy.
Therefore, Two organelles that are required to make the process of the deer obtaining energy from sugar molecules in the leaf possible are the mitochondria and the chloroplasts.
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If a solution is 8% solute, it is [x]% solvent
If a solution is 8% solute, that means 8% of it (or 8/100ths) is made up of the stuff you added to it. We know that the whole solution is 100%. Therefore, we need to subtract 8% from 100%, which gives us 92%. We know this is correct since you can't have a less than 100% solution, since it exists wholly.
92% should be your answer.
Which step in photosynthesis does not need light?
Answer: Dark Reaction
Explanation: Its the second stage of photosynthesis and it does not require light.
work from home will have a future impact on urban sprawl?
Answer:
Yes, working from home will have a future impact on urban sprawl. Working from home reduces the need for people to commute to their workplace, which in turn reduces the demand for housing in urban areas. This can lead to a decrease in urban sprawl, as fewer people are commuting to urban areas and thus fewer people are in need of housing. Additionally, with fewer people commuting to urban areas, there will be less traffic congestion, leading to a reduction in air pollution.
Explanation:
Can someone help me with this
6.The signal strength, or "loudness," of a signal over time at different frequencies contained in a specific waveform is visually represented in a spectrogram.
What purpose does a spectrogram serve?The signal strength, or "loudness," of a signal over time at different frequencies contained in a specific waveform is represented visually in a spectrogram. One can observe how energy levels change over time in addition to determining whether there is more or less energy, for instance, at 2 Hz vs. 10 Hz.
How should a spectrogram be read?The vertical axis or y-axis of the spectrogram view shows frequency in Hertz, the horizontal axis or x-axis denotes time (exactly like in the waveform display), and brightness denotes amplitude. The sine wave is represented by the bright orange curve while the background is black, which represents silence.
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what is chromosomes
Answer:
a chrosome is made up of proteins and DNA organized into genes each cell normally contains 23 pairs of chrosomes.
Chromosomes are structures formed by a DNA molecule associated with protein molecules. In prokaryotic cells, we observe a circular chromosome; in eukaryotes, chromosomes are linear and located inside the nucleus.
Pentane with molecular formula C5H12, exists in three isomeric forms. One shows linear carbon chains, another has one -CH3 groups present on the third carbon atom, and the third has two -CH3 groups present on the second carbon atom. What types of isomers are these?
Researchers determine the population of phytoplankton in an area of the ocean is significantly decreased compared
to the previous year. What can they conclude from this observation? (1 point)
The plankton as a carbon sink will be less than expected, but the plankton as a carbon source will
be greater than expected.
The plankton as a carbon sink and as a carbon source in the area will be less than expected.
The plankton as a carbon sink will be greater than expected, but the plankton as a carbon source
will be less than expected.
O The plankton as a carbon sink and as a carbon source in the area will be greater than expected.
This information might be used to draw the conclusion that there will be fewer plankton in the region than is typical both as a carbon source and sink, hence B is the appropriate response to this question.
What is phytoplankton?The kind of organisms that live in watery habitats are known as phytoplankton.
These species are autotrophic in nature and are the producers of this ecosystem. These creatures share a characteristic with terrestrial plants in that they both contain chlorophyll.
Therefore, if the phytoplankton population falls in the coming year, it means that the region's carbon supply and sink will be less than anticipated.
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The state of a medium helps determine the speed of sound passing through medium
True. The speed at which sound travels through a medium is determined by the properties of that medium.
What do you mean by sound?
Sound is a type of energy made by vibrations that travel through the air or another medium, like water. It is sensed by our ears and interpreted by our brains. Sound is made up of waves that have different frequencies, which determine the pitch and loudness of a sound.
Factors such as temperature, pressure, composition, and density can all affect the speed of sound in the medium. For example, sound travels faster through warmer air than through colder air, and faster through denser materials than through less dense materials.
Hence, the statement is True.
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Complete question:
The state of a medium helps determine the speed of sound passing through medium.
State True or False.
2. Which is probably most responsible for the
formation of this landform?
wind
water
plants
animals
The most likely factor in the creation of this landform is wind. The horizontal movement of air caused by a pressure differential between two locations is known as wind.
What does wind mean in both senses?Wind is the flow or rush of winds or an air stream, and it corresponds with bend and tend. The metaphorical term "wind" can also refer to a force that drives social or political change. A person who has run out of energy is described as winded. The word "wind" can also refer to a person's breath.
Why does wind exist?The uneven burning of the Planet by both the sun and also the Earth's rotating motion result in wind, which is the air's movement. Light breaths to natural disasters like hurricanes and tornadoes are all types of winds.
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evaluate the effects that the harmful substances have on the effeciency of aerobic respiration and how this affects metabolic pathways
pollutants (asbestoos, oxidants)
drugs( ketamine, cocaine)
chemicalsin cigarettes( toxins, tar, nicotine
The mechanical advantage of a machine is the number of times it a. multiplies the resistance force. b. multiplies the effort force. c. changes the direction of the effort force. d. changes the direction of the resistance force.
The force or speed of a machine is multiplied by its mechanical advantage. It is a figure (without units) that indicates how many times the apparatus multiplies a force (or speed). I. M. A. An ideal machine's mechanical advantage is the optimal mechanical advantage. Thus option A is correct.
What is the mechanical advantage of a machine?The ratio of load to effort is referred to as a machine's mechanical advantage. The efficiency of a machine is due to its mechanical advantage. Effort/Load = Mechanical Advantage. The mechanical advantage M A is equal to F 0 F I where F 0 is the output force and F I is the input force.
Therefore, multiplies the resistance force.
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How would i fill this in?
Relation between variables are the different born percentages in sea turtles.
What percentage of sea turtles are female?
Green sea turtles from cooler southern nesting strands were about 65 to 69 percent lady, testing showed. Sea turtles from warmer northern strands leaned indeed more heavily womanish, with86.8 percent of adult turtles,99.8 percent of sub-adult turtles, and99.1 percent of juvenile turtles turning out to be womanish.
How long does it take for a sea turtle to incubate?
The incubation time for utmost species is 45 to 70 days. exploration indicates that the coitus of an embryo is dependent on the temperature of the nest. Lower nest temperatures produce further males; advanced temperatures produce further ladies. For green ocean turtles, a nest temperature of 28 °C(82 °F) or below produces substantially males.
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The life activity known as synthesis is chiefly characterized by the:
A) Distribution of essential compounds throughout an organism.
B) Production of complex molecules from simpler ones.
C) Elimination of waste products from the organism.
D) Regulation of physiological activities.
Answer:
B) Production of complex molecules from simpler ones.
Explanation:
Synthesis is the process of combining simpler molecules to form more complex ones. This can occur through various chemical reactions within an organism. The other choices do not accurately describe the process of synthesis.
A) Distribution of essential compounds throughout an organism - This refers to the transport of essential molecules within an organism, rather than the production of complex molecules from simpler ones.
C) Elimination of waste products from the organism - This refers to the removal of waste products, rather than the production of complex molecules.
D) Regulation of physiological activities - This refers to the control of physiological processes, rather than the production of complex molecules.
list two differences between dominant and recessive trait and what present in plant in F2 generation by around in mental cross between round and wrinkled plant
A round seed phenotype and the dominant allele for the roundness trait were present in three-fourths of the f2 plants. Dominant covers the trait of recessive.
What is dominant?An allele is a gene form that can appear as a pair and exhibit either a homozygous or heterozygous phenotype of a characteristic.
Both dominant and recessive forms of the trait can be expressed by these genes. When two organisms are crossed, the F2 generation of the progeny exhibits three phenotypes: homozygous dominant, heterozygous dominant, and recessive.
Therefore, the roundness trait was present in three-fourths of the f2 plants.
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examples for classification
Answer: Here are a few examples of classification:
Explanation:
Organizing a library's books by genre (e.g. fiction, non-fiction, children's books, etc.)
Sorting clothing items by size (e.g. small, medium, large)
Grouping types of food based on their ingredients or cooking methods (e.g. vegetarian, vegan, gluten-free)
Osmosis is the passive transport of what substance
Answer:
Osmosis is the passive transport of water molecules across a selectively permeable membrane. In osmosis, water moves from an area of high concentration (high water potential) to an area of low concentration (low water potential) in order to balance out the concentration on both sides of the membrane. This process can be observed in living cells, where the membrane surrounds the cell controls the flow of water and other molecules in and out of the cell.
In simple words, Osmosis is a type of diffusion that specifically refers to the movement of solvent molecules through a selectively permeable membrane. It is a fundamental concept in biology and is crucial for the proper functioning of cells and organisms.
*worth 15 points, will give brainliest*
Cystic fibrosis Is a recessive disease that causes damage to the digestive system, lungs, and other organs of the body. Cystic fibrosis is the result of deletion mutations that are inherited from both parents. Which of the sample chromosomes shows an example of a deletion mutation?
RSTUV-XYZ ----> RSTUUV-XYZ
RSTUV-XYZ ----> STUV-XY
RSTUV-XYZ ----> RUTSV-XYZ
RSTUV-XYZ ----> KLRSTUV-XYZ
If Cystic fibrosis is the result of deletion mutations that are inherited from both parents, then the sample chromosome that shows an example of a deletion mutation is B. RSTUV-XYZ ----> STUV-XY.
What is a deletion genetic mutation?A deletion genetic mutation can be defined as an alteration in the genetic material of the cell of an individual associated with the loss of one or more nucleotides in the original sequence.
Therefore, with this data, we can see that a deletion genetic mutation is caused by the loss of nucleotides in the DNA.
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mendel found that due to ___, certain traits do not demonstrate independent assortment.
a.linkage
b.crossing over
c.mutation
d.none of the above
1. Which image shows a virus that can infect
the human body?
Answer: c
Explanation:
a is mitochondria which is part of the cell
b is the cell itself
c is the virus
d is a nerve
HELP LIMITED TIME ASAP!!!!!!!!!!!!!!
Which greenhouse gas do humans release into the atmosphere the
most?
Select one:
1, Nitrogen
2, Water Vapor
3, Oxygen
4, Carbon Dioxide
Answer: Carbon dioxide
Explanation:Because,Carbon dioxide from the burning of fossil fuels is the largest single source of greenhouse gas emissions from human activities.
Define bilateral symmetry and some special divisions that this type of body plan lends itself to. Give five examples of animals that are bilaterally symmetrical.
Answer:
Bilateral symmetry is a type of body plan in which the left and right sides of the body are mirror images of each other. This type of body plan lends itself to special divisions such as head, thorax, and abdomen. Examples of animals that are bilaterally symmetrical include humans, fish, frogs, butterflies, and worms.
Explanation:
Answer:
Explanation:
d
A veterinarian is trying to ascertain why a herd of sheep suddenly all have green lips and muzzles and are coughing and vomiting. He believes that they have ingested a biotoxin and asks the owner if he has noted any rubber bitterweed in his fields. The farmer is incredulous, saying, “It’s right in the name—BITTERweed. Sheep don’t eat that stuff.” Which fact would support the veterinarian’s theory that these sheep have eaten the poisonous scrub?
A.
Bitterweed grows in most parts of America.
B.
The weed is actually very sweet and sheep like the taste.
C.
If they have not been fed properly, sheep will eat bitterweed.
D.
Sheep will eat anything that is not tied down.
Answer:
C. If they have not been fed properly...
Explanation:
If they have not been fed properly, sheep will eat bitterweed. This fact would support the veterinarian's theory that the sheep have eaten the poisonous scrub, as it suggests that the sheep may have turned to eating the bitterweed due to hunger or malnutrition.
Which numbers are all characteristics of life things?
1. Complex, ordered organization consisting of one or more cells
2. Use and transforms energy to perform work
3. Sensitive and responsive to the external environment
4. Regulate internal conditions
5. Grow, develop, and reproduce
6. Evolutionarily adapt and over time undergo descent but with modification
A student pours a spoonful of dirt into a cup of water. The water and dirt are stirred together. The water turns a light brown color. Some dark pieces float to the top of the cup and another dark layer forms on the bottom of the cup. Which statement BEST describes the contents of the cup?
The statements described the contents of the cup is that it is a mixture.
What is the cup?Let us notice that the question that we have here is incomplete but to the best of my ability I would try to explain the concept that is involved here. We know that a mixture would imply any combination of the substances that are not chemically combined together.
We can see that both the water and the dirt are independent substances. They do not mix up at all when we put the dirt in the water. They would continue to be separate from each other although they have been mixed together.
Hence, we can see that putting the dirt and the water in the same place would only lead to the production of a mixture of substances as we have described in the answer stated here.
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Compare the punnet squares you constructed in Activity 4, "Breeding Corn", with the punnet squares you constructed in this activity. By answering the following questions, show how the possible outcomes of a cross for one trait help analyze two traits.
A. How did you need to change the punnet square to consider two traits?
B. How would you need to change the punnet square if you were to consider three traits?
Punnett squares represent the possible genotypes of the offspring according to the parental's gamete combinations. The number of gametes depend on the number of alleles and traits considered. A) New rows and columns were added to the square because each parent contributed with four types of gametes (4 rows and 4 columns). B) The square would be constructed with eight rows and eight columns.
What is a Punnett square?
The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.
Punnett squares are composed of columns and rows in which all the different potential gametes are placed.
columns represent one of the parental gametes, and rows represent the other parental's gametes.The intersection between each column and row suggests a possible genotype among the offspring.
The number of columns and rows will depend on the number of genes involved in the cross. We can use the formula 2ⁿ to figure out how many gametes are possible (2 is the number of alleles, and n is the number of genes). Assuming diallelic genes,
If we consider only one gene, two types of gametes are possible (2¹). If we consider two genes, four types of gametes are possible (2²). If we consider three genes, eight types of gametes are possible (2³)
Punnett squares shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
In the exposed example, we need to compare a punnett square in which we consider only one gene with a punnett square in wich two genes are considered.
From activity 4: Punnett square
Cross: Purple with yellow
Parentals) PP x pp
Gametes) P P p p
Punnett square)
P P
p Pp Pp
p Pp Pp
F1) 100% purple kernels, Pp.
Cross: Heterozygous purple kernels from F1
Parentals) Pp x Pp
Gametes) P p P p
Punnett square)
P p
P PP Pp
p Pp pp
F2) 75% Purple (PP + Pp) and 1/4 yellow kernels (pp)
In these crosses, we only consider one diallelic gene that expresses complete dominance.
Punnett squares are composed of two columns and two rows in which both types of gametes are located.
Now, we need to consider two genes (P and S), which means four alleles are involved and four type of gametes are possible.
Cross: Between two dihybrid individuals
Parentals) PpSs x PpSs
Gametes) PS, Ps, pS, ps PS, Ps, pS, ps
Punnett square)
PS Ps pS ps
PS PPSS PPSs PpSS PpSs
Ps PPSs PPss PpSs Ppss
pS PpSS PpSs ppSS ppSs
ps PpSs Ppss ppSs ppss
F1)
9/16 individuals are expected to express both dominant traits (PPSS, PpSS, PPSs, PpSs)3/16 individuals are expected to express only one dominant trait (PPss, Ppss)3/16 individuals are expected to express the other dominant trait (ppSS, ppSs) 1/16 individuals are expected to express both recessive traits (ppss)Now, we need to compare Punnett squares from activity 4 (one trait) with this new Punnett square (two traits), and answer the questions,
A. How did you need to change the punnet square to consider two traits?
Since we consider two traits, we need to add rows and columns according to the possible gametes. The new punnett square must have four columns and four rows (2ⁿ = 2² = 4).
Remember that all the possible gametes depend on the number of possible allelic combinations.
B. How would you need to change the punnet square if you were to consider three traits?
If we consider three traits, we need to construct a Punnett square with eight columns and eight rows (2ⁿ = 2³ = 8).
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Use the
drop-down menus and the image to
complete these statements about
prokaryotes.
Prokaryotes
a nucleus
surrounding their chromosome of DNA.
Prokaryotes are
simple cells than
eukaryotes.
Prokaryotes have a
membrane that
~ outside their cell
gives protection and support.
Prokaryotes will often move by a tail-like
DONE
Prokaryotes are less complex than eukaryotes and lack a nucleus. They also contain a flagellum outside of their cell.
Where does the DNA of prokaryotes reside?
Prokaryotes have a nucleoid in the center of the cell that houses the DNA but is not protected by a nuclear membrane. In addition to chromosomal DNA, many prokaryotes also possess smaller, circular DNA molecules known as plasmids, which can provide genetic benefits in particular situations.
Do prokaryotic chromosomes exist?
Prokaryotic cells lack a membrane-bound nucleus, in contrast to eukaryotic cells. Instead, the nucleoid, a part of the cytoplasm, is where their genetic material is located. Typically, a prokaryotic cell contains just one circular, coiled chromosome.
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Which Fisheries are used as a major source of protein
Plain
Coastal
Hilly
Desert
Carps, tilapia, catfish, and milkfish are particularly significant as protein sources for low-income families in developing nations. Freshwater finfish and tiny marine finfish species from the catch fisheries are also essential.
Which fisheries are the main sources of protein for Mcq?Pisciculture is the proper response. Pisciculture is the practice of rearing fish in ponds or tanks for human consumption. Tilapia, salmon, carp, and catfish are the most significant species that are raised on a global scale.
What are the top three places to find fish?Long-chain omega-3 fatty acids, iodine, vitamin D, and calcium are just a few of the vital nutrients that can only be found in fish. Fish, one of the most significant sources of proteins and micronutrients, could be a powerful tool in the fight against malnutrition in India.
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