Answer:
R r One uppercase R and one lowercase r
Explanation:
Heterozygous means having two different alleles. Since R is the dominant it means she has red hair and is still heterozygous.
Answer:
2 chromosomes are labeled R and r
Heterozygous means different, so you need two different traits.
Which statement best describes scientists who contributed to the current body of science knowledge
The appropriate choice must be (A).
What is the role of scientists in society?Science contributes greatly to the generation of knowledge and hence contributes to the operation of democracies, fosters innovation and allows countries to be competitive in the global economy.
The ongoing work of men and women from various nations throughout history has contributed to the existing body of scientific knowledge.
It is not simply wealthy men with money who could conduct experiments and get a scientific conclusion. We are all familiar with Marie Curie, who is renowned for her work in radioactivity and twice earned the Noble Prize.
Of course, advances in science have been accomplished before to the 20th century; for instance, Newton discovered gravity in the 17th century.
Therefore, the existing body of scientific knowledge is not constrained by specific limitations; rather, it is the result of ongoing efforts made by men and women from various nations throughout history.
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Select the correct location on the graph.
The graph shows the area of land deforested in a certain region each year from 1990 to 2004. Which bar on the graph corresponds to the year in
which human activity would have caused the greatest single-year change in biodiversity in the
region?
40,000
30,000
20,000
10,000
miles)
Area Deforested
(square
1990
1991
1992
1990
1991
1992
1993
1994
1996
1995
1997
1998
1999
Year
2001
2000
2002
2003
2004
Answer:
10,000
Explanation:
In the process of _________________________________ one sperm fertilizes the egg, and the other fuses with 2 gametophyte nuclei to form the first endosperm cell. This process occurs in gymnosperms and angiosperms.
Answer: in the process of polyspermy development
Explanation: in most cases the egg cell blocks polyspermy
Which of the following is a decomposer
A. Worm
B. Banana
C. Ferm
D. Wolf
Answer:
A
Explanation:
worms eat compost burried underground.
A husband and wife have two sons. One boy has a straight thumb, while the other has a bent thumb. What causes this difference?
Which statement provides an environmental reason to use renewable paper bags instead of nonrenewable plastic bags?
Answer:
it's not easy to destroy plastics if we use nonrenewable plastics u will have to throw them and they will become poison to the insets
Help me anyone, please !!!!
When a person needs transfusion, the link on compatibility (option A) is most apt.
What is genotype?The genotype of an individual is the number of genes that the individual possess.
Using the Mendel crossing, we can see that if the parents are AB and AO one offspring will have type A blood.
If we look at the chart, we can see that the blood type A and B are both codominant and are dominant over O hence option K is correct.
When a person needs transfusion, the link on compatibility (option A) is most apt.
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how is an action potential generated ?
The action potential generated through a threshold or suprathreshold stimulus on a neuron.
Where is the action potential generated?The action potential (AP) originates thanks to a disturbance of the resting state of the cell membrane, with consequent flow of ions through the membrane and alteration of the ionic concentration in the intra and extracellular environments.
In this case, is a rapid change in the electrical potential of neuron membranes.
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(a) Explain why red blood cells burst when placed in some solutions of sodium chloride.
Answer: Red blood cells placed in a solution with higher water concentration compared to their contents will gain water by osmosis that will then swell up and then burst.
Explanation:
Osmosis causes red blood cells to release water when they are exposed to sodium chloride solutions that are more concentrated than their internal environment (hypertonic solutions).
Hemolysis is the term for this process. In an attempt to balance the solute concentration, water is pulled out of the cells by the high concentration of sodium chloride outside the cells, creating an osmotic gradient. The result is that the cells shrink and may eventually rupture or burst. Lack of water reduces internal pressure and destabilizes cell membranes, causing red blood cells to burst.
This phenomenon underscores how important it is to maintain the correct balance of solute concentrations to protect the structural and functional integrity of red blood cells.
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Explain what causes menkes syndrome include in your answer the symptoms and life expectancy of the affected person
Answer:
Menkes disease is caused by a defect in the ATP7A gene. The defect makes it hard for the body to properly distribute (transport) copper throughout the body. As a result, the brain and other parts of the body do not get enough copper, while it builds up in the small intestine and kidneys. Menkes syndrome causes impaired copper absorption. This results in changes in the arteries and deterioration of the brain. Menkes syndrome is rare. Most children born with Menkes syndrome have a life expectancy of < 4 years.
Explanation:
Which of the following is NOT true of the Wada test? Group of answer choices It entails the injection of amobarbital. It can be used to determine which hemisphere is language dominant. It determines the extent to which the corpus callosum has been resected. It is used before elective surgery for the treatment of epilepsy.
The option that isn't true of the Wada test is D. It is is used before elective surgery for the treatment of epilepsy.
What is Wada test?It should be noted that Wada test is used to evaluate how important each side of the brain is with respect to language and memory function.
In this case, the option that isn't true of the Wada test is that is is used before elective surgery for the treatment of epilepsy.
In conclusion, the correct option is D.
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which type of cells are spherical and contain energy molecules?
The type of cells that are spherical and contain energy molecules are fat cells
What is a fat cell?A fat cell is a connective cell in the body that is spherical in shape that is use to store and produce energy, fatty acids and help to store fat. Fat cells are a form of connective tissues in the body that generate ATP and also store fat in adipose tissue.
Therefore, The type of cells that are spherical and contain energy molecules are fat cells
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what are tissues composed of in addition to cells?
There are four types of tissues in the organism (epithelial, muscular, connective, and nervous). Tissues are composed of cells and extracellular matrix.
What are tissues composed of?
Tissues are cells organized and associated, accomplishing different functions in the organism.
There are four types of tissues: epithelial, muscular, connective, and nervous.
All of them are composed of the same components that might vary according to the tissue and its functions.
CellsCells are the main component of tissues. Their shape, size, organization, and closeness vary from tissue to tissue.
Extracellular matrixThe extracellular matrix is the space between cells. It varies in size, state, and composition depending on the tissue.
It contains proteins, water, salts, and other macromolecules. This composition also varies.
Among their many different functions, we can mention hydration, mechanical pressure resistance, reproduction and cell differentiation, motility, substances diffusion, communication between cells, and damaged tissue repairing, among others.
In addition to cells, the extracellular matrix compose tissues.
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Which of the following is NOT an example of pseudoscience?
Biology, Chemistry, Physics, and Medicine are not classified under the category of Pseudoscience.
What is Pseudoscience?Pseudoscience may be defined as a recommendation, a determination, or a method of illustration that is delivered as science but that lacks the severity important to the scientific approach.
Pseudoscience may always deal with the concept of recommendation methods which seems to be faulty and does not provide enough evidence to support the answer. Subjects like biology, chemistry, physics, etc. deal with the concept of scientific methods.
The complete question is as follows:
Which of the following is NOT an example of pseudoscience?
BiologyAstrologyChemistryPhysicsMedicine.Therefore, Biology, Chemistry, Physics, and Medicine are not classified under the category of Pseudoscience.
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What geological change and event occurs at a transform boundary?
A. Plates collide, and a trench is formed.
B. Plates move apart, and a rift is formed.
C. Plates collide, and a mountain is formed.
D. Plates slide past one another, and a fault is formed.
Some animals that are scavengers can eat bacteria-laden meat that would harm humans. Which of the following best explains why these bacteria would harm a human, but not a scavenger?
The scavenger's immune system is strong enough to fight off bacterial infections before it produces toxins and damages tissues.
Only human cells have the complementary receptors that bind to surface molecules found on the bacteria.
Antibodies found in the blood of the scavenger destroy the bacteria as soon as they enter the bloodstream.
The pH and temperature environment in the human encourages more bacterial growth and colonization.
The scavenger's immune system is strong enough to fight off bacterial infections before it produces toxins and damages tissues. Thus, option "A" is correct.
How, explain your answer briefly?Animals that feed on meat might have an immune system adapted to it and strong enough to prevent bacterial infections before it produces toxins and damages tissues.
Some of these animals (beetles) spray the rotting meat with an antimicrobial substance produced by their own organism, before starting to eat.
Other animals, however, consume rotten meat and attack bacteria with stomach acid that is ten times more acidic than our stomach acid, which can eliminate a large part of bacteria, before they cause problems. However, some bacteria can survive and cause serious problems if we eat these animals.
Thus, option "A" is correct.
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On which part of the maintenance cycle do linux administrators spend the most time?
The part of the maintenance cycle the linux administrators spend the most time is monitoring system.
What is monitoring system?
A system monitor is a hardware or software component used to monitor system resources and performance in a computer system.
This computer hardware can be used by administrators to monitor system resources and performance in a computer system.
Thus, the part of the maintenance cycle the linux administrators spend the most time is monitoring system.
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What observations were you able to make after 24 hours? 48 hours?
Since this is biology and you are not saying what we are observing, I'm gonna choose water as the subject I'm looking at.
If you leave the water out for about 24 hours, the water will have many different kinds of bacteria. Same with the 48 hours, but there are more bacteria in it.
1. When mRNA moves out of the nucleus into the cytoplasm it attachs to another RNA
called rRNA, a protein assembly site referred to
mRNA moves out of the nucleus into the cytoplasm and attaches to another RNA called rRNA, a protein assembly site referred to as the ribosome.
What is Ribosome?This is referred to an organelle which is responsible for protein synthesis in cells.
The mRNA is used as a template for the rRNA to attach at this point to aid in protein translation and production. rRNA ensures that the appropriate amino acids are added and also form part of the ribosome which are involved in catalysis of the reaction.
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Find the equation of the parabola with its focus at (6,2) and its directrix y = 0.
A) y = -1/4(x - 6)² + 1
The equation of the parabola with its focus at (6,2) and its directrix y = 0, is determined as y = 1/4(x - 6)² + 1.
Equation of the parabolaFocus at (6,2) and its directrix y = 0.
Focus equation is given as: (h, k + c) = (6, 2)
Directrix equation is given as: y = k - c = 0
so h = 6, k + c = 2, k - c = 0
Solve the system : k + c = 2 and k - c = 0
add the equations together: k + c + k - c = 2 + 0
2k = 2
k = 1
so k + c = 2,
1 + c = 2
c = 1
4c (y - k) = (x - h)²
4(1)(y - 1) = (x - 6)²
4(y - 1) = (x - 6)²
4y - 4 = (x - 6)²
4y = (x - 6)² + 4
y = 1/4(x - 6)² + 1
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Natural resources are spread equally within a city is that true ?
Which of the following statements about Jesus's life is true according to the Bible?
A. Jesus was sentenced to death by crucifixion.
B. Jesus was born to a Jewish family in a Roman province.
C. All of the choices are correct.
D.Jesus was baptized by John the Baptist.
Answer:C
Explanation:A he was sentenced to death B he was born in a jewish family in the roman empire d he was baptized by John the Baptist.
Which best summarizes the flow of energy in a producer?
O Sun > ADP > muscle cells
O Sun > mitochondria > CoH1206
O Sun > chloroplasts > mitochondria
O Sun > mitochondria > chloroplasts
The correct answer to the given question is O Sun > chloroplasts > mitochondria ie. Option (C)
Chemical reactions are how energy moves through living things. One set of substances, known as reactants, are transformed into another set, known as products, during each chemical reaction.Such reactions take place in plants as a result of the sunlight-to-chemical energy conversion process, which powers plant growth and other operations.In particular structures known as chloroplasts, this process, referred to as photosynthesis, involves the combination of carbon dioxide and simple sugars to create more complex carbohydrates. The cells of plants, algae, and some protists include these membrane-bound organelles called chloroplasts.From one atom or molecule to another, electrons move. The relevance of these oxidation-reduction (or redox) reactions in mitochondria to living systems cannot be overstated.In this manner, molecules that carry energy are created and put to use for efficient energy transfer
Hence, the correct answer is O Sun > chloroplasts > mitochondria ie. Option (C)
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An organ system is a group of organs that work together to perform _____ functions in a multicellular organism
Answer:
a certain functions
Explanation:
Which two processes cycle carbon directly between the atmosphere and biosphere?
a. Combustion and cellular respiration
b. Photosynthesis and cellular respiration
c. Chemosynthesis and decomposition
d. Decomposition and combustion
explain how training can heal a horse broken bone?
Training can heal a horse broken bone due to increased blood flow to the affected area.
What is Training?This involves the development of skills or body of an individual through programs or physical activities.
Physical activities ensure that the required nutrients in the blood reach and nourishes the bone which then helps in the healing process.
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why do the potato strip in pure water get bigger?
Answer:
The incoming water in the potato cells pushes on the cell walls and makes the cells bigger , that's how the strips of potato in pure water becomes bigger .
Propane is burned to provide the heat in many cooking grills. The chemical
reaction for this process is shown in the equation below.
C3H8 +502 → 3 CO2 + 4H2O + energy
What are the products in this chemical reaction?
A. C3H8 +502
B. 4H₂0 +502
C. 3C0₂ + 4H₂O + energy
D. C3H3 +3CO2 + energy
Answer: it's 3CO2+4H2O+Energy
Propane is a linear alkane of formula C3H8. It is mainly used as fuel (this is the main component of liquefied petroleum gas) in cooking and chemical industry reactions.
The reaction of its complete combustion by the presence of oxygen is:
C3H8 (gas) + 5O2 ==> 3 CO2 + 4H2O + energy (2220⋅kJ)
As we can see, propane can release carbon dioxide and water as every combustion reaction, and a lot of energy in the form of heat.
____________ is an instrument or other device that puts pressure on tissue, usually to stop bleeding.
Tamponade is an instrument or other device that puts pressure on tissue, usually to stop bleedings.
What is bleeding?Bleeding is defined as the leakage of blood from a blood vessel due to trauma or sharp cut.
Tamponade is an instrument used by medical personnel to arrest bleeding. The word tamponade is known as blockage or closure.
Therefore, Tamponade is an instrument or other device that puts pressure on tissue, usually to stop bleedings.
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18. What important cellular process produces water
molecules as it breaks down glucose in the presence of
oxygen?
Answer:
Aerobic cellular respiration
