how many molecules ofco2 are produced when krebs cycle operates once
Answer:
2
Explanation:
Products and Functions of the Krebs Cycle
For one cycle, two molecules of carbon, three molecules of NADH, one molecule of FADH2 and one molecule of ATP or GTP are produced.
describe how the solar system was formed
Explanation:
The Sun and the planets formed together, 4.6 billion years ago, from a cloud of gas and dust called the solar nebula. A shock wave from a nearby supernova explosion probably initiated the collapse of the solar nebula. The Sun formed in the center, and the planets formed in a thin disk orbiting around it. In a similar manner, moons formed orbiting the gas giant planets.
como formaron los cientificos la escala de tiempo geologico?
Answer:
Para crear la escala de tiempo geológico, los geólogos correlacionaron capas de roca. Las leyes de Steno fueron utilizadas para determinar las edades relativas de las rocas. Las rocas más antiguas están abajo y rocas más jóvenes están arriba. La primera escala de tiempo geológico sólo mostraba el orden de los eventos
7. Observations and inferences are
important in science. How would you
explain the difference between the
two words?
Hey there! I'm happy to help!
Observations are things that can be written down or described. You can observe something with any of your five senses: you can see what color something turns, you can hear the noise something makes, you can taste a cookie with a different amount of an ingredient, you can smell an odor produced by a chemical reaction, and you can feel the texture of different samples.
You can also create observations by using scientific tools. For example, instead of feeling if water is hot or cold, you could use a thermometer. This will give you numerical data which can be put into a table or graphed for further analyzing.
Inferences are created from observation. You cannot make an inference without observation. Observations lead to inferences. Inferences are conclusions or guesses made from the observations. You could infer that sugar makes a cookie taste sweeter after experimenting with no sugar and observing that it tasted bitter. You could infer that more weight allows things to travel further after going down a ramp after measuring the distances different weights travel, graphing it, and observing the data.
Have a wonderful day and keep on learning! :D
Which statement best represents how structure relates to function
Answer:
Butterfly cocoons are often camouflaged
Explanation:
hope it help goodluck (◕ᴗ◕✿)
One strand of a DNA molecule has the base sequence GAGTTA. The complementary base sequence on the other strand of DNA will be
O CTCAAT
O CUCAAU
O UCUGGC
ОТСТААС
One strand of a DNA molecule has the base sequence GAGTTA. The complementary base sequence on the other strand of DNA will be CTCAAT
The base pairs in a DNA(Deoxyribonucleic acid) molecule consists of 4 base sequences namely:
AdenineGuanineCytosineThymineEach base has a complimentary base sequence which it binds to during DNA formation as it helps to make the nucleotides stable.
Adenine has a complimentary base of Thymine while Guanine has a complimentary base of Cytosine and vice versa.
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6. One of the big ideas in science is that an experiment can be __________________.
name each of the following
I will give brainliest
Answer:
See. if it helps or not. I couldn't find any other good answer
Fill in a Punnett Square for a heterozygous male parent and a heterozygous female parent. Male - X Female - Ee X Ee
Please help I will make brain list
Answer:
light reflection
Explanation:
often seen by sunlight to windows
A disadvantage of sexual reproduction in plants is
Answer:
These are some of the disadvantages of sexual reproduction: time and energy are needed to find a mate.
hope this helps!
A disadvantage of sexual reproduction is the fact that ADDITIONAL ENERGY is required to complete a life cycle.
Sexual reproduction can be defined as a type of reproduction that involves a complex life cycle in which germinal haploid cells called gametes combine to produce a diploid (2n) cell called the zygote.Subsequently, this zygote then divides to produce an adult organism.In plants, the most important disadvantage of sexual reproduction is that energy is required to complete a complex life cycle (i.e., zygote development).The diploid (2n) multicellular stage in the life cycle of a plant is known as the sporophyte.In conclusion, a disadvantage of sexual reproduction in plants is that ADDITIONAL ENERGY is needed to complete a complex life cycle.
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what are the effects of the even on each of the Earth's four spheres?
Answer:
An event can cause changes to occur in one or more of the spheres, and/or an event can be the effect of changes in one or more of Earth's four spheres. This two-way cause and effect relationship between an event and a sphere is called an interaction.
Scientific investigations are done by following which process?
a scientific hypothesis
b scientific method
C scientific law
d scientific theory
Answer: scientific method
Explanation:
That’s how science works
I WILL GIVE BRAINLIEST
Process A → Decaying / Decomposition
Process B → Nitrification
The root nodules are important in the nitrogen cycle as they help in intaking of nitrogen and other minerals like phosphorous, potassium, sodium etc. from the soil.
Hope it helps you
Which question can be used to evaluate reliability of a source
Answer: The question can be used to evaluate the reliability of a source is Do these results support the author's own opinion?
In sources (books, articles, etc), reliability implies the information of a source can be trusted. This occurs if:
All the information is based on facts
The information is not manipulated by the author's opinion or interests
In this context, it is expected the information of the source is objective rather than influenced by the author's opinion. Therefore, one way to check the reliability of a source is "Do these results support the author's own opinion" because if the information is manipulated by a personal opinion, the source is not reliable.
Also, other questions are not appropriate because they are related to other aspects such as relevance, not reliability.
The answer as to which question can be used to evaluate the reliability of a source lies in the following options :
“Do these results support the author's own opinion?” “Is this data challenged by anyone in the public?” “Is this research relevant to me?” “Who was paid to do this research?”The correct answer would be “Do these results support the author's own opinion?”
First, the reliability of a source refers to the level of dependability or trustability of the source.That a data is challenged by someone in the public does not make it more or less dependable, all other things being equal.Who is paid to do a research has no bearing on the reliability of the outcome as long as the scientific method is followed to the core.However, if a result supports the opinion of the author of the result, this might call the reliability of the result into question.A result that reflects the opinion of its author might be scrutinized for confirmation bias. Hence, such a question can be sued to evaluate the reliability of a source.
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which prefix is correctly defined
A. mer- one
B. poly - many
C. mono - large
Answer:
The answer is letter B
Explanation:
Learned about this in class so i know that mono means one and poly means many
Answer:
B. poly - many
Explanation:
Poly means more than one in examples:
polygamy - the practice or custom of having more than one wife or husband at the same time.
polyamine - an organic compound having more than two amino groups
polyaxon - a nerve having several axons
I hope this is helpful :)
1)why stomata genrally opens during day time ?
2)which parts of plant intake CO2 and give out O2 , takes in O2 and give out CO2 during day time ?
where does glycolysis take place in a cell?
if the refractive index of diamond is 2.42 Find it's critical angle
Answer:
Critical angle is 24.4°
Explanation:
[tex]n \sin(c) = 1[/tex]
n is refractive index
c is critical angle
[tex]{ \sf{2.42 \times \sin(c) = 1}} \\ { \sf{ \sin(c) = \frac{1}{2.42} }} \\ \\ { \sf{ \sin(c) = 0.4132}} \\ { \sf{c = \sin {}^{ - 1} (0.4132) }} \\ { \sf{c = 24.4 \degree}}[/tex]
did you find any biases or opinions in this article? explain your answer (this is science)
Answer:
Yes. The doctor said that it was difficult to tell parents that medicine is not very effective in treating coughs. So, he had a bias or an interest in finding something that would work for his patients.
Which compound is a reactant of both cellular respiration and dehydration synthesis? (1 point)
O glucose
O oxygen
O water
O ATP
Answer:
glucose
Explanation:
I had a test with this, and it was glucose.
Glucose is a reactant of both cellular respiration and dehydration synthesis
WHAT IS CELLULAR RESPIRATION?
Cellular respiration is the process by which living organisms obtain energy from organic sources. Cellular respiration combines glucose and oxygen as reactants to form carbon dioxide (CO2), water (H2O), and energy.WHAT IS DEHYDRATION SYNTHESIS?
Dehydration synthesis is a reaction whereby two smaller molecules come together to form a larger molecule with the loss of water. An example of dehydration synthesis reaction is the formation of starch from the reaction of glucose molecules with the loss of water.Therefore, glucose is a reactant of both cellular respiration and dehydration synthesis.
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Amoeba sisters:video recap biomolecules
7. Robert Koch is credited with the discovery of Mycobacterium tuberculosis in 1876.
A. True
b. False
Answer:
falso
Explanation:
How are meiosis and mitosis similar
Answer:
they both produce new cells
Answer:
Explanation:The biggest similarity between the two is that they both produce new cells. ... Both mitosis and meiosis begin with a single parent cell which eventually splits to form new daughter cells. They also both are preceded by interphase, a period of growth (sometimes lasting up to 90% of the cell's life) when DNA is synthesized.
State three factors that influence the movement of molecules though membrane.
Answer:
Thickness of membraneTemperature and pressure Concentration gradientTo which part of the nervous system do the cranial nerves belong?(1 point)
A. spinal nerves
B. the peripheral nervous system
C. the cerebrum
D. the central nervous system
The cranial nerves belongs to the peripheral nervous system. Thus, option B is correct.
What is nervous system?Nervous system is well organised system in our body as it performs a very important function. The main component of nervous system is spinal cord and brain..The cranial nerves belongs to the peripheral nervous system.
The nerves are arranged in the form of branches from the spinal cord and distributed in all the parts of body.The cranial nerves belongs to the peripheral nervous system.
The location where brain and spinal cord are located is known as dorsal body cavity and these two parts of the body play a vital role in communication of all parts of the body.The nerves are arranged in the form of branches from the spinal cord and distributed in all the parts of body.
Therefore,The cranial nerves belongs to the peripheral nervous system. Thus, option B is correct.
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Carbon is most abundant in the and .
Why is Venus the hottest solar system planet?(1 point)
It has abundance of nitrogen and oxygen gases.
It is closest to the sun.
Its atmosphere is rich in carbon dioxide gas.
It has a core, a mantle, and a crust.
Answer:
I think that it is closest to the sun.
Explanation:
it is the second closest planet to the sun.
Venus the hottest solar system planet because it is closest to the sun. Thus, option B is correct.
What is solar system?
The solar system is defined as a system which is gravitationally bound of the sun and orbit is occupied by object. The formation of solar system takes place 4.6 billion years ago and this happens due to gravitational collapse of a giant molecular cloud. The most and wast majority of the systems mass in the sun and other part of mass contained by the planet jupiter.
The solar system contain total 8 planet in which 146 moon, asteroid and space rocks, a number of dwarf planet such as pluto. The most and vast majority of the systems mass in the sun and other part of mass contained by the planet jupiter. Italian astronomer Galileo Galilei discovers solar system. The solar system is defined as a system which is gravitationaly bound of the sun and orbit is occupied by object.
Therefore,Venus the hottest solar system planet because it is closest to the sun. Thus, option B is correct.
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explain how artificial insemination is carried out in calves
Answer:
Artificial insemination (AI) involves placing semen directly into the uterus. Embryo transfer involves transferring fertilised ova from a donor female to a recipient female who then rears the calf.
I think this help you
Examine the model for natural selection for rodents and their predator species, the owls. Which statement accurately
describes the relationship between genetic variation and natural selection? Select ALL that apply.
A)
B)
Genetic variation decreases in a population of prey after natural selection
acts on it
Genetic variation increases in a population of prey after natural selection
acts on it
Genetic variation decreases in a population of predators after natural
selection acts on it
Genetic variation increases in a population of predators after natural
selection acts on it
Genetic variation exists in a population leading to individuals with
adaptations with different survival frequencies.
D)
E)
Indiana is home to fossilized
The correct answers are:
-Genetic variation decreases in a population of prey after natural selection acts on it.
-Genetic variation exists in a population leading to individuals with adaptations with different survival frequencies.
Genetic variation creates new variants of a gene; such a variant is called an allele. These variations occur as a result of the interaction between individuals with their environment, where it affects them in a way that determines their survival or not, as a consequence of their adaptability to the surrounding context. Thus, natural selection occurs, which establishes which individuals survive and which individuals do not. Thus, individuals characterized as prey who develop defense elements against hunters will be the ones who survive, while those who do not will be the ones who will perish.
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