Answer and Explanation:
Datos:
El alelo dominante del gen que codifica para el tipo de pelo, determina el pelo crespo. Llamemos P al alelo dominante. Genotipos que expresan pelo crespo: PP (Homocigota dominante) y Pp (Heterocigota)El alelo recesivo del gen que codifica para el tipo de pelo determina el pelo liso. p es el alelo recesivo.Genotipo homocigota recesivo, pp, expresa pelo liso.La cruza entre un cuy de pelo crespo y un cuy de pelo liso producen solo cuyes de pelo crespo. Esto implica que el parental con pelo crespo era homocigota dominante.1º Cruza: un cuy de pelo crespo y un cuy de pelo liso
Parental) PP x pp
Gametas) P P p p
Cuadro de Punnet) P P
p Pp Pp
p Pp Pp
F1) 100 % de la progenie posee pelo crespo
4/4 tienen genotipo heterocigoto.
2º Cruza: un cuy heterocigoto de la F1 y un cuy homocigoto recesivo
Parental) Pp x pp
Gametas) P p p p
Cuadro de Punnet) P p
p Pp pp
p Pp pp
F2) 50% de la progenie tiene pelo crespo
50% de la progenie tiene pelo liso
2/4=1/2 de la progenie es heterocigota
2/4 = 1/2 de la progenie es homocigota recesiva.
What percentage of the Earth's surface do forests cover? 20% 30% 40% 10%
30% of the earth's surface is covered by forests.
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How are the molecules in photosynthesis and cellular respiration similar? Please include descriptions of the molecules
Answer:
They are similar because they both produce energy but in two different forms.
Photosynthesis- It produces oxygen and G3P, simple carbohydrate molecules that are high in energy and can be converted into glucose, sucrose, or other sugar molecules.
cellular respiration-During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water.
They exhibit the same responses, but they do so in reverse. Carbon dioxide and water are converted during photosynthesis into glucose and oxygen. Carbon dioxide and water are produced during respiration in exchange for glucose and oxygen.
What similarity in photosynthesis and cellular respiration?Energy transformations from one form to another are a part of both respiration and photosynthesis through a sequence of metabolic reactions.
The reactions that are carried out by both processes—which both use and produce ATP—are carried out on membranes and are managed by enzymes.
Light energy is converted by photosynthesis into chemical energy that is stored in glucose, which is then released by cellular respiration to create ATP, the life-sustaining compound.
Therefore, They are similar because they both produce energy, but in two different forms.
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If you step outside when the temperature is well below freezing, you can bet it will not be raining. You are more likely to see snow if there is any precipitation at all. Water in the clouds is so cold that it turns into ice crystals. What are some of the physical differences between rain water and ice crystals such as snow?
Answer:
Physical features of rain water is different from snow.
Explanation:
Physical differences between rain water and ice crystals such as snow are given below.
The rain water is present in liquid form while snow is present solid form. rain water is colorless while snow is white in color. Rain water occurs when the temperature is warm while snow occurs in cold temperature. The size of rain water particle is small while size of snow particle is large. Rain water has circular shape while snow has many shapes such as plates, dendritic and irregular crystals.
Answer:
Rain water is a liquid substance and snow is a solid substance. You can pick up snow with your hands, but water runs through your fingers.
Explanation:
13. List 4 safety symbols that would be seen if you are working with a material that is biohazard, such as bacteria.
Answer:
1. Skull and crossbones
2. A triangle (commonly painted colour red or yellow) with an exclamation sign inside.
3. biohazard symbol
4. A radiation sign in the form of a triangle, having other little image descriptions inside.
Explanation:
Note that a biohazard material refers to dangerous substances of biological (living) nature that can pose a threat to humans. Thus, safety symbols try as much as to draw attention to the descriptions used.
For example, skull and crossbones and biohazard symbols are used to indicate that a material that is biohazard, such as bacteria could result in the death of a person.
Hey I know it's a lot who ever answer all I'm going to give brainliest answer thxs 1) DNA is a microscopic molecule made up of only _____ chemicals. 2) In the __________ all that was known about life was what could be seen through a _________________________. 3) Chromosomes are made of _______________ and ______________. 4) The ingredients that make DNA are known by the letters _____________________. 5) The first pictures of DNA were taken using _______________ crystallography. 6) To determine the structure of DNA, Watson & Crick chose to build _______________. 7) Watson & Crick announced they had a DNA model on _____________________. 8) After seeing the model, Rosalind Franklin said that it was _____________________. 9) Chargaff’s rule stated that the amount of _____ and the amount of _____ were equal and the amount of _____ and the amount of _____ were equal. 10) The X-pattern of DNA was the result of a shape known as a _________________________. 11) In a molecule of DNA there could be hundreds of millions of _____________________. 12) The letter ____ always combines with ____ and the letter ____ always combines with ____. 13) Watson & Crick produced their final model on _________________________. 14) Rosalind Franklin never received a Nobel prize because she _______________. 15) For DNA to be replicated it must first be _____________________. 16) The single strand of DNA is then ________________ and formed into a ________________.
Answer:
1) nitrogen bases
2) the 1950’s; microscope
3) DNA and protein
4) nucleotides
5) X-ray diffraction
6) ball-and-stick model-building
7) 25 April 1953
8) was critical to Watson and Crick
9) adenine-timine; guanine-citosine
10) double helix
11) base pairs
12) G with C and A with T
13) 1953
14) died
15) unwound
16) synthesized; a new molecule
Explanation:
Nitrogenous bases are used to construct nucleotides. Until the discovery of the helical shape of the DNA molecule, were only possible to identify the genetic material (chromosomes) by the microscope. Chromosomes are composed of DNA and proteins (histones). Nucleotides are the building blocks of the DNA molecule. The X-ray diffraction data obtained by Rosalind Franklin were used to decipher the DNA structure. The ball-and-stick is a molecular model where atoms are represented by spheres and bonds are represented by rods. Chargaff's rules indicate that the content of cytosine is equal to guanine and adenine is equal to thymine. Rosalind Franklin died of ovarian cancer in 1958. The double-stranded DNA molecule must be unwound and then the DNA strands serve as templates to synthesize identical DNA molecules.
How
might a sinus infection affect the rest of the respiratory system?
Answer:
The inability of the sinuses to drain and the associated lack of airflow create an environment that is ideal for bacterial growth. In acute viral sinusitis, the virus that caused the upper respiratory infection has infected the sinuses and continues to produce mucus, inflammation, and congestion.
Quick
Check
Which structures are found in both animal and plant cells? Check all that apply.
cell membrane
cell wall
cytoplasm
Golgi body
nucleus
ribosome
vacuole
Answer:the organelle which are found in both animal and plant cells are
Cell membrane
Cytoplasm
Nucelus
Golgi bodies
Ribosome and
Vacoule ( in different amount)
The structures that are found in both animal and plant cells are cell membrane, cytoplasm, golgi body, nucleus and ribosomes. The correct options are a, c, d, e, and f.
What is a cell?All living organisms and body tissues are made up of cells, which are the smallest unit that can live on its own.
A cell is made up of three major components: the cell membrane, the nucleus, and the cytoplasm. The cell membrane surrounds the cell and regulates the substances that enter and exit the cell.
Plant and animal cells are structurally very comparable because they are both eukaryotic cells.
The nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes are all membrane-bound organelles in both.
Plant cells lack centrosomes and lysosomes, whereas animal cells do. Plant cells always possesses a cell wall, chloroplasts as well as other specialized plastids, and a large central vacuole, whereas animal cells do not.
Thus, the correct options are a, c, d, e, and f.
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What is the weight of pure composed atmos element combined in definite proportion
Answer:
2.9 : 4.35 = 2:3
Explanation:
the law of definite or constant or fixed proportions more compounds, then the weight of 1 element that combines with fixed ratio of M and O atoms in oxide B=2.9 : 4.35 = 2:3
state three effects of
crop disease
Answer:
Reduce yeild
Effects the production quality
Cost of productions increased
Explanation:
please help me. I been stuck on this question for a long time :(
Answer:
Explanation:
1. Climate change is caused by changes in the earth's atmosphere in the amounts of greenhouse gases released into the air. Some scientists believe that 100% of global warming is due to humans. The largest contribution comes from burning fossil fuels because it releases carbon dioxide gas to the air, which is done by humans. Other factors that contribute to climate change include:
>Deforestation- clearing out trees affects wildlife, ecosystems, whether patterns. Forests cover 30% of the lands mass and clearing them leaves many animals without homes.
>Waste from factories- they release tonnes of toxic fumes into the air.
> Agriculture and farming- this is a surprising contributing factor to global warming. Animals produce a greenhouse gas called methane and when livestock are grazed at a large scale, the amount of methane produced is a big contributor to global warming.
Some fertilizers release nitrous oxide, which is another greenhouse gas.
2. The effects of global warming include:
>Melting glaciers- this leaves many animals without homes and it also causes a rise in sea levels which causes flooding. (that's 3 effects)
>Worsening droughts- this leaves many humans to die as they have no food or water.
>Increasing tornadoes
okay that's all i could do... hope it helps.
PEOPLE IF YOU DONT KNOW THE ANSWER DONT EVEN TRY TO SAY '' I WISH I CAN HELP DUT IDK THE ANSWER" Write true if the statement is true or false if the statement is false. _____ 1. Earth’s diameter is longer through the poles than through the equator. _____ 2. Earth’s magnetic field extends several thousands of kilometers into space. _____ 3. Earth’s axis of rotation passes through the north and south poles. _____ 4. One complete rotation of Earth requires a little more than 24 hours. _____ 5. A swinging pendulum appears to change direction because of Earth’s revolution. _____ 6. Earth’s speed of rotation is greatest at the equator. _____ 7. Earth has seasons because its orbit around the sun is elliptical. _____ 8. Earth travels about 150 million kilometers during one revolution. _____ 9. Earth revolves around the sun at a constant speed. _____ 10. Earth’s axis is tilted 23 ½ degrees relative to a line drawn perpendicular to the equator.
Answer: 1. Earth’s diameter is longer through the poles than through the equator. False 2. Earth’s magnetic field extends several thousands of kilometers into space. True 3. Earth’s axis of rotation passes through the north and south poles. False 4. One complete rotation of Earth requires a little more than 24 hours. False 5. A swinging pendulum appears to change direction because of Earth’s revolution. False 6. Earth’s speed of rotation is greatest at the equator. True 7. Earth has seasons because its orbit around the sun is elliptical. False 8. Earth travels about 150 million kilometers during one revolution. False 9. Earth revolves around the sun at a constant speed. False 10. Earth’s axis is tilted 23 ½ degrees relative to a line drawn perpendicular to the equator. True
Explanation:
Metamorphosis is:______.a. changing of one body form to another within a species, such as the change from an aquatic tadpole to a terrestrial frog. b. an intermediate condition, such as length of legs in mice between longer legs of some mice and shorter legs in others, a condition caused by Hox genes. c. the evolutionary transition from fishes to amphibians. d. the developmental changing of a scale to a feather.
Answer:
changing i think
Explanation:
Which process that causes changes in Earth's orbit was found to coincide with 100,000-year glacial cycles? Answer Options: A. Axial precession B. Precession of the ecliptic C. Apsidal precession D. Obliquity
Answer:
Apsidal precession
Explanation:
Apsidal precession is the process that causes changes in Earth's orbit and was found to coincide with 100,000-year glacial cycles. Thus, the correct option is C.
What is the Glacial cycle?The glacial cycle may be defined as a significant global climatic oscillation of the order with a specific rate that is developed by the ice age.
Apsidal precession is the precession of the line that links the apsides of an astronomical body. The regular cycle of apsidal precession takes about 100,000-year.
Therefore, the correct option for this question is C.
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If the percent concentration is greater in the fluid outside a cell than inside a cell, how will the water
flow?
This means the solution would be___________
Which tube(s) did this happen to?
Answer:
The water will flow from the inside of the cell to the fluid outside the cell. This means that the solution would be hypertonic.
It will happen to the tubes that have a higher concentration of solutes in the fluid outside cells than inside the cells.
Explanation:
When a cell is in a hypotonic solution, it means that the concentration of solute in the solution is higher than the one in the cell. As a natural reaction, the cell tries to balance this difference. To do this, the water that is inside the cell flows to the outside. As a result, the concentration between the inside and the outside of the cell becomes equal or more equitable. Besides, the cell shrinks due to the loss of water.
How does the body prevent the loss of sugar in urine?
Answer:
Drinking enough water prevents dehydration and also helps the kidneys remove extra sugar from the body in the urine. Those looking to reduce blood sugar levels should reach for water and avoid all sugary drinks, such as fruit juice or soda, which may raise blood sugar levels instead.
Explanation:
Pillbugs are placed in a container where they have a choice of a wet or a dry environment. Researchers record how much time was spent on each side. What is the INDEPENDENT variable?
Answer: Wet or dry environment.
Explanation:
The independent variable is the variable that a researcher manipulates in an experiment in order to carry out a study on the incidence of the expression of the dependent variable. Therefore, the independent variable is the one that changes or is controlled to see its effects on the dependent variable.
Researchers can then design a container with a wet or dry environment. But it's the pillbugs that are going to choose where to go and how long to spend in each part. So the time they spend in each part is a dependent variable since that cannot be controlled by the scientists conducting the experiment. Henceforth, the researches will just record this dependent variable without controlling it. But they can decide what to put in the container to make it wet or dry environment, or whatever they want to design. So wet or dry environment is the independent variable.
Answer:the independent variable is whether the pillbugs choose a wet or dry environment. The dependent variable how much time was spent on each side.
Explanation:
A biologist counts the number of rabbits in a population each year and observes a decrease in population. Since the coyote population has exploded, the biologist concludes that the coyote population has had a negative impact on the rabbit population. Which describes the biologist’s actions?
Options:
A.) experimentation
B.) inference
C.) observation
D.) interacting
Answer:
B. Inference
Explanation:
Inference is a logical conclusion that is arrived at, judging from the facts and and evidence we already know and see.
In the case above, a decrease in rabbit population and explosive of the population of the coyote are premises that the biologist basses his logical conclusion on, stating that, the population of coyote has a negative impact on rabbit population. This could also be termed "an educated guess".
Answer:
B
Explanation:
took the test got 100
What happens when volcanoes release greenhouse gases into the atmosphere?
Answer:
a. the climate gets warmer...
Explanation:
When volcanoes release greenhouse gases into the atmosphere, global warming is due to the greenhouse effect.
What do you mean by the Greenhouse effect?The Greenhouse effect may be defined as the phenomenon of keeping the earth warm due to the presence of certain gases in the atmosphere.
Greenhouse gases like carbon dioxide, Methane, and Nitrous oxide allow the solar radiations to enter but prevent the escape of heat radiations of longer wavelength.
Due to this, the gradual and continuous increase in the average temperature of the earth's surface occurs, a phenomenon known as global warming.
Therefore, when volcanoes release greenhouse gases into the atmosphere, global warming is due to the greenhouse effect.
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What is the largest source of waste generation?
A. Individuals and industry
B. Individuals and agriculture
C. Developing countries
D. Industry and agriculture
Answer: B. Individuals and agriculture
Explanation:
If Sammi had more time or better resources, how could she improve her model to eliminate some of the weaknesses?
Answer:
She could use more materials to replicate the entire digestive system instead of the small intestine only. Maybe use some better material than cardboard to represent the villi lining. She could also use more capillaries to make it more realistic.
Explanation:
answer for plato activity, your welcome :)
Answer: She may utilize additional materials to duplicate the full digestive system instead of the small intestine only. Maybe use some better material than cardboard to represent the villi lining. She could also use more capillaries to make it more realistic.
Explanation:
what is the hypothesis
Answer:
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
Explanation:
Answer:
what you think is gonna happen in an experiment
Explanation:
Mention two similarities between haemolysis and plasmolysis
Answer:
Explanation:
they both in invole the desturction of the cell
A school aged child is brought to the clinic by her parents. The parents state that the child will be engaged in some activity at home and then just stop suddenly for a few seconds and then pick up the activity again as if there had been no break in what she was doing. This child should be assessed for what neurological disorder?
a.) Tonic-clonic seizures
b.) Absence seizures
c.) Myoclonic seizures
d.) Status epilepticus
Answer:
Absence seizures
Explanation:
This is a type of seizure also known as ( Petit Mal seizures).It is common in children, (between 4-14 years) and characterised with intent stare at empty space for few seconds(which may occur in 10 -100 times in a day) and does not caused any significant harm.However,with frequent occurrence it may affect concentration.It does not exceed 15 seconds
it is caused by repeated electrical signals in the brain due to interference in the synaptic transmission and also to alterations in levels of Neurotransmitters .
Staring into empty space,
Fluttering of eyelids
Intermittent stoppage of speech are some of the symptoms.
Treatment is with medications.,
describe environment and its causes
Answer:
The definition including its particular circumstance is outlined in the subsection below on clarification.
Explanation:
The environment seems to be the reason why things like waterlogged as well as the warm environment are dissimilar. It can sometimes be aspects that are alive or nonalive.
Some causes related to the given topic are as follows:
This comprises all the usual physical, biological, and perhaps other causes.They deal with that as well constantly and therefore are adjusting to just the circumstances in their world.
Where do the convection currents of the magma happen?
In the crust and the atmosphere?
In the crust and core?
In the mantle and core?
In the mantle and crust?
Answer:
in the mantle and crust
Explanation:
magma is the molten rock below the crust and in the mantle
Answer:
In the mantle and crust
Explanation: becuase
Which observation led Mendel to the idea that traits were controlled by more than a single factor? Crossing two purple-flowered pea plants always resulted in a purple-flowered pea plant. Crossing two white-flowered pea plants always resulted in a white-flowered pea plant. A trait that was not seen in the first generation may later reappear in the second generation. A trait that was not seen in the first generation was completely gone and never reappeared.
Answer:
The answer is option C.
Explanation:
Genetic traits are expressed by dominant and recessive genes, which show up in the phenotype according to their presence on the chromosomes.
Observing a trait that was not present in the previous generations suggests that this trait is recessive and did not have the chance to appear in the other generations before. This idea has led Mendel to the idea that traits were not controlled by only a single factor. So the answer is C.
I hope this answer helps.
Answer:
A trait that was not seen in the first generation may later reappear in the second generation.
Explanation:
Which area of the brain receives information collected from mechanoreceptors?
Pons
Olfactory lobe
Medulla
Somatosensory cortex
Answer:
I think, you answer is. somatosensory cortex.Explanation:
Hope it helps you.....Thank you..Somatosensory cortex area of the brain receives information collected from mechanoreceptors. Option D is correct.
The somatosensory cortex is a region of the brain that receives information collected from mechanoreceptors. Mechanoreceptors are sensory receptors that respond to mechanical stimuli, such as touch, pressure, and vibration. The somatosensory cortex is located in the parietal lobe of the brain, and it is divided into two parts: the primary somatosensory cortex and the secondary somatosensory cortex.
The primary somatosensory cortex receives information from the skin, muscles, and joints. The secondary somatosensory cortex integrates this information and allows us to perceive the location, intensity, and quality of touch. The pons is a region of the brainstem that is involved in the coordination of movement and the regulation of sleep. The olfactory lobe is a region of the brain that is involved in the sense of smell. The medulla is a region of the brainstem that is involved in the control of breathing, heart rate, and blood pressure. Option D is correct.
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PLEASE ANSWER QUICKLY Which statement about cell theory is INCORRECT? New cells are spontaneously created from existing cells. All organisms are composed of one or more cells. Cells are the basic unit of life and structure. New cells are created from existing cells.
Answer:
New cells are spontaneously created from existing cells
Explanation:
In the 1830's, three scientists namely: Matthias Schleiden (a botanist), Theodor Schwann (a zoologist) and Rudolf Virchow proposed the Unified cell theory. In this theory, three parts were universally accepted and they are as follows:
1) Cells are the fundamental and basic unit of all life and structure.
2) All living organisms are made up of one or more of these cells.
3) New cells arise from already pre-existing cells.
These three parts are the widely accepted parts of the cell theory. Although, it was once believed that new cells arose from inorganic matter. This theory, called spontaneous generation or abiogenesis was later disapproved.
Therefore, the statement that, "new cells are spontaneously created from existing cells" is not a part of the CELL THEORY.
Does genes contain sextual attractions over humans?
Answer:
Yes, genes are based on your look likes / features for example hair, eyes, other parts of the body and people are more connected to them for the circumstances of attractions
Hope this helps :)
Explanation:
What factor about cellular respiration are you testing? ( what makes the three bottles different?)
Answer:
Gas.
Explanation:
Gas which is present makes the three bottles different from one another. There are three factors which is used for testing of cellular respiration such as amount of oxygen consumed during this process, amount of glucose used and amount of carbondioxide produced during cellular respiration. During cellular respiration, oxygen used in order to break down glucose and releases high amount of energy with the waste materials such as carbondioxide gas.
