Answer:
c) 1/4
Explanation:
0.5 x 0.5
The probability of getting two heads on two coin tosses is 0.5 x 0.5 or 0.25. A visual representation of the toss of two coins. The Product Rule is evident from the visual representation of all possible outcomes of tossing two coins shown above
Some dairy farmers want to increase the amount of milk produced by their cows. How can the farmers use selective breeding to increase milk production?
Answer:
By choosing cows that are high milk producers
Explanation:
Answer: By choosing cows that are high milk producers
Explanation:
Both matter and energy cycle through systems in nature. How are aerobic and anaerobic respiration part of one or both of these cycling systems?
Which of the following describes a method of energy conservation?
O A. Driving a car with low fuel efficiency less often than before
O B. Switching to an appliance that has lower energy efficiency
O C. Driving a car with high fuel efficiency more often than before
XOD. Removing the insulation from a home before using the heater in winter
WHAT ARE THE THREE PARTS OF DNA⁈ ( help due right now !! ) ʅ（◞‿◟）ʃ
1. a phosphate group
2. a sugar group
3. one of four types of nitrogen bases.
Hope I helped and good luck with your assignments!!! ^^
__________________________________________________
1.リン酸基
2.糖基
3.4種類の窒素塩基の1つ。
私があなたの割り当てを手伝って頑張ってくれることを願っています!!! ^ ^
Read the two statements given below.
Statement 1: All living matter at the smallest level is made of cells
Statement 2: New animal cells are formed from pre-existing animals
Which of the following best relates the statement to the correct type of theory? (5 points)
a
Both statements are about scientific theories.
b
Both statements are about everyday life theories.
c
Statement 1 is about an everyday life theory, and statement 2 is about a scientific theory.
d
Statement 1 is about a scientific theory, and statement 2 is about an everyday life theory.
1. On average, how do the proportions of typical and mutant bacteria change in the population over time?
Answer:
bacteria
Explanation:
Blank muscles allow you to move parts of your body in different ways when
you want to
Answer:
Skeletal muscles I think
Explanation:
because i think so
Which three organs are part of the digestive tract?
A) salivary glands, gall bladder, appendix
B)teeth, tongue, mouth
C)esophagus, stomach, small intestine
D)esophagus, liver, pancreas
Answer:
C
Explanation:
Due to the stomach and small intestine being part of the digestive tract and the esophagus allowing food, liquids and air to enter the torso
Esophagus, stomach, small intestine are part of the digestive tract. Therefore option C is correct.
The digestive tract, also known as the gastrointestinal tract, is responsible for the process of digestion in the human body. It consists of a series of organs that work together to break down food and absorb nutrients.
The three organs that are part of the digestive tract are the esophagus, stomach, and small intestine.
The esophagus is a muscular tube that connects the mouth to the stomach and helps in the transportation of food. The stomach is a sac-like organ that mixes and churns food with digestive enzymes and acids.
The small intestine is a long tube where the majority of digestion and absorption of nutrients occurs.
Therefore option C esophagus, stomach, small intestine is correct.
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In a breed of dog, the gene for black fur is dominant and the gene for brown fur is recessive. Two dogs with black fur are bred. One of the offspring has brown fur What is the most by explanation for the brown?
SC 912 L 16.1
The dog received a mutated gene
The dog only received one gene for fur color
The dog received two recessive genes for brown fur
The dog received one gene for brown fur and one gene for black fur
O
Answer:
the dog received 2 recessive genes for brown for
Explanation:
the only time a recessive trait will be shown physically is when the dog gets two recessive alleles
Answer: I believe its two recessive genes for brown fur
Explanation:
Vascular
plants contain tubelike structures that transport wat
and nutrients, which allows these plants to grow_______
than
nonvascular plants.
Answer:fronds
Explanation:
What’s the key stages during expiration(breathing out) and during inspiration(breathing in)?
Which star is four times bright as our sun
Answer:
The star VY Canis Majoris
VY Canis Majoris
Hope this helped! :)
a sailboat moves faster as the wind blows on its sail. this is an example of acceleration, force, speed, velocity
Answer:
force
Explanation:
Gravity and buoyancy are the two key forces that operate on a stationary sailboat. The power of the wind pulls on the sail in order for the boat to move which allows the boat to move. The powers are now unbalanced, which is apparent from the acceleration of the ships.
The boat accelerates until the forward portion of the force from the sails is matched by the drag from the water.
How is salinity affected?
(a) evaporation increases
(b) freezing increases
(c) melting increases
(d) precipitation increases
Answer:
Salinity of seawater is affected by evaporation, precipitation, ice formation, and ice melting. Evaporation increases the salinity of seawater because when seawater evaporates, the salts are left behind, thus increasing their concentration. ... Ice formation and melting behaves in a similar way.
Answer: evaporation increases
Explanation:
the first person meant evaporation increases
Which of the following is NOT an example of evidence that supports the theory of evolution?
How does oxygen concentration in the atmosphere correlate with animal diversity?
Answer:
Oxygen burns the food within their bodies and releases energy for various activities and thus it helps animal to be alive. to use it in respiration. Animals need oxygen (O) to survive. In fact, all organisms need oxygen to complete the process to burning glucose for fuel.
Explanation:
Which molecules contain only carbon, hydrogen, and oxygen?
Select all that apply.
carbohydrates
glucose
proteins
O nucleic acids
[tex] \huge \purple{\tt{Answer:}} [/tex]
glucose
The molecule here that contains only carbon, hydrogen, and oxygen is Glucose. So the correct option is B.
What is glucose?Glucose is a monosaccharide or simple sugar. It is a kind of sugar found in honey and fruits. Glucose is the major sugar present in our body.
It is the main source of cellular energy utilized in the process of cellular respiration. Thus, it helps in proper cell functioning and metabolism.
Starch molecules are composed of various monomers of glucose. They are the polysaccharides of glucose. The structural formula for glucose is C₆H₁₂O₆. This means that glucose is only composed of carbon hydrogen and oxygen atoms.
Glucose is a type of Carbohydrate but there are other kinds of carbohydrates that contain elements like nitrogen and sulfur. Proteins and nucleic acids also contain other elements like phosphate, nitrogen, and sulfur.
Thus only glucose is composed of oxygen, carbon, and hydrogen.
Therefore the correct option is B.
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How much of the parent DNA molecule makes up one daughter DNA molecule ?
Answer:
Watson and Crick discovered that DNA has a double helix shape, consisting of two polynucleotide chains held together by bonds between complementary bases. DNA replication is semi-conservative: half of the parent DNA molecule is conserved in each of the two daughter DNA molecules.
Explanation:
I looked it up lol
Describe 3 ways the land/terrain change as we move from Charlotte NC to the coastal plains of North Carolina
Answer:
Hilly towards flat.
Higher elevation toward lower elevation.
Clayey to sandy type of soil.
Explanation:
The land of Charlotte NC is hilly whereas coastal plains of North Carolina is flat. Charlotte NC is located at a high elevation while on the other hand, the coastal plains of North Carolina are located at the sea and at lower height. The soil type of Charlotte NC is clay and silt whereas the soil type of coastal plains of North Carolina is sandy due to the presence of sea.
What best explains why there's fewer secondary consumers than producers?
Answer:
because of inefficiency
Explanation:
The organisms that eat the primary consumers are meat eaters (carnivores) and are called the secondary consumers. ... Because of this inefficiency, there is only enough food for a few top level consumers, but there is lots of food for herbivores lower down on the food chain. There are fewer consumers than producers.
Students were involved in an experiment to investigate whether playing music while they
took a test affected their scores.
control
independent variable
dependent varibale
test scores students = playing music during a test
Answer:What excalty the question?
Explanation:
What is the probability of flipping a coin twice and getting two heads?
a) 1
b) 1/2
c) 1/4
d) 3/4
Answer:
3 , I'm a Harvard graduate
What does Sexual reproduction involves ?
Answer:
it involves a sperm (male) entering an egg (female)
Explanation:
Which of the following have improved farming practices and crop production? Select all that apply.
Increased number of farmers
Sophisticated irrigation
Chemical fertilizers
Chemical pesticides
Answer:
sophisticated irrigation, chemical fertilizers, chemical pesticides
Explanation:
The use of irrigation to provide needed water and the use of natural fertilizers to promote crop growth are farming methods that have been practiced for centuries. More sophisticated irrigation techniques, various chemical pesticides, and modern chemical fertilizers have been developed in the twentieth century.
Active
Create a dichotomous key.
Magnifying Glass
Drag your question here.
Legs
Wings
Antennae
Stinger
Claws
Brown
Answer:
here hope this helps sorry its late but better late then never right anyways here have a good day if you have questions please let me know.
Explanation:
A dichotomous key is an identification technique that repeatedly divides groups of organisms into two categories.
What is Dichotomous key?More details regarding the unique characteristics of a given organism are disclosed with each successive division. Once the organism no longer exhibits all of the chosen traits in concert with any other organism, it has been recognized.
In order to identify specimens with a dichotomous key, it is recommended to employ immutable traits (i.e. features that do not change). Size, coloration, and behavioral habits can all change across people and over the course of a lifetime.
Better traits are produced by physical features (like the number of limbs) and biological processes (like the mode of reproduction). Typically, dichotomous keys are displayed in one of two ways.
Therefore, A dichotomous key is an identification technique that repeatedly divides groups of organisms into two categories.
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If the statement is true, write true. If the statement is false, change the underlined word
or words to make the statement true.
1. At the freezing point, the particles in an object have no kinetic
energy.
2. On the Celsius temperature scale, there are no negative
numbers.
3. The more particles an object has at a given temperature, the
more thermal energy it has.
4. Object A is much larger than Object B, but both are made of
the same material. If both objects are at the same temperature, the thermal energy
of Object A is the same as the thermal energy of Object B.
5. When heat is absorbed by an object, the speed of the particles
in the object is unchanged.
Answer:
true
Explanation:
False. At the freezing point, the particles in an object have some kinetic energy.
False. On the Celsius temperature scale, there are negative numbers.
True. The more particles an object has at a given temperature, the more thermal energy it has.
False. Object A is much larger than Object B, but both are made of the same material. If both objects are at the same temperature, the thermal energy of Object A is not the same as the thermal energy of Object B.
False. When heat is absorbed by an object, the speed of the particles in the object is changed.
Explanation:
The temperature is defined as the measure of hotness and coldness.It is measured in terms of degrees Celsius, Kelvins, degrees Fahrenheit.There are negative numbers on the Celsius temperature scale and Fahrenheits temperature scale but not on the Kelvin temperature scale.It is a measure of the average kinetic energy of the particles of the object.The hotter the object, the higher will be the kinetic energy of the particles of the object, higher will be the value of temperature. The colder the object, the lower will be the kinetic energy of the particles of the object, lower will be the value of temperature.The object with more mass will have more particles and more will be the kinetic energy associated with the particles.When heat is added to an object to raise its temperature the kinetic energy of the particles increases. As kinetic energy is directly linked with speed or velocity.So from this, we can conclude that :
At the freezing point, the particles in an object have some kinetic energy.
On the Celsius temperature scale, there are negative numbers.
The more particles an object has at a given temperature, the more thermal energy it has.
Object A is much larger than Object B, but both are made of the same material. If both objects are at the same temperature, the thermal energy of Object A is not the same as the thermal energy of Object B.
When heat is absorbed by an object, the speed of the particles in the object is changed.
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Can blood cells replicate themselves?
Answer:
Blood cells cannot replicate themselves.
Explanation:
They do not replicate like other bodily cells because they cannot independently process and create proteins. Blood cells are instead formed in the bone marrow of bones. Depending on whether it is RBC or WBC, there are different types of bone marrow for producing that type of blood cell.
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Sickle-cell anemia is a recessive trait in humans. In order to express the disease, an affected individual must inherit two recessive alleles (ss).
What is the probability that the offspring of two heterozygous parents will also be heterozygous?
Choose 1 answer:
(choice A)
A
(choice B)
B
[tex]\frac{1}{4}[/tex]
(choice C)
C
[tex]\frac{1}{2}[/tex]
(choice D)
D
[tex]\frac{3}{4}[/tex]
(choice E)
E
[tex]\frac{4}{4}[/tex]
Answer:
1/4 will have ss trait
Explanation:
other 2/4 will be carrier(Ss) and other 1/4 will have both dominant trait (SS)
Answer:
B. 1/2
Explanation:
The genotypes of the parents are Ss and Ss. We know this because Heterozygous basically means different alleles. The punnet square of this problem will show that the possible genes given to the offspring are SS (capital letters mean dominant. keep in mind that sickle-cell anemia is a recessive trait, meaning it is written in lowercase), Ss, Ss, or ss. So this means the offspring will have a 1/2 chance of becoming heterozygous (Ss).
1. What two reactants enter the mitochondrion?
2. Compare the reactions in mitochondria with glycolysis.
1. How does a cell obtain energy?
2. Under what conditions does fermentation occur in a cell?
3. If a cell could perform both cellular respiration and fermentation, which process would benefit the cell more?
Answer:
1.NADPH2 and FADH2 , and O2
Explanation:
NADPH2 and FADH2 get oxidized in the electro transport chain into NADP+ and FAD+ and water and oxygen and yield 3 ATP molecules and 2 ATP molecules per each molecule respectively
Following are the answers:
The two reactants that enter the mitochondrion are pyruvate, the end product of glycolysis, and oxygen.In the mitochondria, pyruvate and oxygen undergo a series of reactions called cellular respiration, which produces energy in the form of ATP. This process is more efficient than glycolysis, which only produces a small amount of ATP.A cell obtains energy through a variety of processes, including cellular respiration and fermentation.Fermentation occurs in a cell when there is a lack of oxygen, such as in anaerobic conditions.In general, cellular respiration is more efficient than fermentation in producing ATP, but fermentation is a useful process for cells to produce ATP when oxygen is not available.What is mitochondria?Mitochondria are organelles found in the cells of most eukaryotic organisms, including plants, animals, and fungi. They are often referred to as the "powerhouses" of the cell because they are responsible for producing the majority of the cell's supply of adenosine triphosphate (ATP), which is used as a source of chemical energy.
Mitochondria are membrane-bound structures that contain their own genetic material, separate from the cell's nucleus, and are responsible for their own replication. They have unique characteristics that allow them to produce energy through the process of cellular respiration, a series of reactions that convert the energy from food molecules, such as glucose, into ATP. This process is one of the most important biological processes in living organisms, as it allows cells to perform their functions and sustain life.
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HELPPP WHAT ARE Three ways nitrogen can be fixed or transformed for animals and plants to use
Answer:
Thus, nitrogen undergoes many different transformations in the ecosystem, changing from one form to another as organisms use it for growth and, in some cases, energy. The major transformations of nitrogen are nitrogen fixation, nitrification, denitrification, anammox, and ammonification
Explanation:
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